Yale University is an American private Ivy League research university located in New Haven, Connecticut. Founded in 1701 in the Colony of Connecticut, the university is the third-oldest institution of higher education in the United StatesSony VAIO VPCF24Q1E battery.

Incorporated as the "Collegiate School," the institution traces its roots to 17th-century clergymen who sought to establish a college to train clergy and political leaders for the colony. In 1718, the College was renamed "Yale College" to honor a gift from Elihu Yale, a governor of the British East India CompanySony VAIO VPCF13M1E/H battery. In 1861, the Graduate School of Arts and Sciences became the first U.S. school to award the PhD.[7] Yale became a founding member of the Association of American Universities in 1900. Yale College was transformed, beginning in the 1930s, through the establishment of residential colleges: 12 now exist and two more are planned. Yale employs over 1,100 faculty to teach and advise about 5,300 undergraduate and 6,100 graduate and professional studentsSony VAIO VPCF12Z1E/BI battery. Almost all tenured professors teach undergraduate courses, more than 2,000 of which are offered annually.[8][9]

The University's assets include a US $19.4 billion endowment,[10] the second-largest of any academic institution. Yale libraries hold 12.5 million volumes in more than two dozen libraries.[11] 49 Nobel Laureates have been affiliated with the University as studentsSony VAIO VPCF12S1E/B battery, faculty, and staff. Yale has produced many notable alumni, including five U.S. Presidents, 19 U.S. Supreme Court Justices, and several foreign heads of state. Yale Law School is particularly well-regarded and the most selective law school in the United States.[12]

Yalies compete intercollegiately as the Yale Bulldogs in the NCAA Division I Ivy League. Yale and Harvard University share an athletic rivalry, highlighted by The Game and the Harvard-Yale RegattaSony VAIO VPCF13Z8E/BI battery; Yale has won one of the last 11 football games[13] and one of the last 13 crew races.[14] The official color of the university and its athletic teams is Yale Blue.

History

A Front View of Yale-College and the College Chapel, Daniel Bowen, 1786

Origins

Yale traces its beginnings to "An Act for Liberty to Erect a Collegiate School", passed by the General Court of the Colony of Connecticut on October 9, 1701 in an effort to create an institution to train ministers and lay leadership for ConnecticutSony VAIO VPCF13Z8E battery. Soon thereafter, a group of ten Congregationalist ministers: Samuel Andrew, Thomas Buckingham, Israel Chauncy, Samuel Mather, James Noyes, James Pierpont, Abraham Pierson, Noadiah Russell, Joseph Webb and Timothy Woodbridge, all of whom were alumni of Harvard, met in the study of Reverend Samuel Russell in Branford, Connecticut, to pool their books to form the school's first library.[15] The group, led by James Pierpont, is now known as "The Founders"Sony VAIO VPCF13M1E/B battery.

Originally called the Collegiate School, the institution opened in the home of its first rector, Abraham Pierson,[16] in Killingworth (now Clinton). The school moved to Saybrook, and then Wethersfield. In 1718, the college moved to New Haven, Connecticut.

First diploma awarded by Yale College, granted to Nathaniel Chauncey, 1702

Meanwhile, a rift was forming at Harvard between its sixth president Increase Mather and the rest of the Harvard clergySony VAIO VPCF1318E/H battery, whom Mather viewed as increasingly liberal, ecclesiastically lax, and overly broad in Church polity. The feud caused the Mathers to champion the success of the Collegiate School in the hope that it would maintain the Puritan religious orthodoxy in a way that Harvard had not.

In 1718, at the behest of either Rector Samuel Andrew or the colony's Governor Gurdon SaltonstallSony VAIO VPCF13J0E/H battery, Cotton Mather contacted a successful businessman in Wales named Elihu Yale to ask him for financial help in constructing a new building for the college. Through the persuasion of Jeremiah Dummer, Yale, who had made a fortune through trade while living in India as a representative of the East India Company, donated nine bales of goods, which were sold for more than £560, Sony VAIO VPCF13E8E battery a substantial sum at the time. Yale also donated 417 books and a portrait of King George I. Cotton Mather suggested that the school change its name to Yale College in gratitude to its benefactor, and to increase the chances that he would give the college another large donation or bequest. Elihu Yale was away in India when the news of the school's name change reached his home in Wrexham, Wales, a trip from which he never returnedSony VAIO VPCF13E4E battery. While he did ultimately leave his fortunes to the "Collegiate School within His Majesties Colony of Connecticot", the institution was never able to successfully lay claim to it.

Old Brick Row in 1807

Curriculum

Yale was swept up by the great intellectual movements of the period—the Great Awakening and the Enlightenment—thanks to the religious and scientific interests of presidents Thomas Clap and Ezra StilesSony VAIO VPCF12M1E/H battery. They were both instrumental in developing the scientific curriculum at Yale, while dealing with wars, student tumults, graffiti, "irrelevance" of curricula, desperate need for endowment, and fights with the Connecticut legislature.[18]

Serious American students of theology and divinity, particularly in New England, regarded Hebrew as a classical language, along with Greek and Latin, and essential for study of the Old Testament in the original wordsSony VAIO VPCF12F4E/H battery. The Reverend Ezra Stiles, president of the College from 1778 to 1795, brought with him his interest in the Hebrew language as a vehicle for studying ancient Biblical texts in their original language (as was common in other schools), requiring all freshmen to study Hebrew (in contrast to Harvard, where only upperclassmen were required to study the language) Sony VAIO VPCF12E1E/H battery and is responsible for the Hebrew phrase אורים ותמים (Urim and Thummim) on the Yale seal. Stiles' greatest challenge occurred in July 1779 when hostile British forces occupied New Haven and threatened to raze the College. Fortunately, Yale graduate Edmund Fanning, Secretary to the British General in command of the occupation, interceded and the College was saved. Fanning later was granted an honorary degree LL.D., at 1803, for his effortsSony VAIO VPCF11Z1E/BI battery.

Woolsey Hall in c. 1905

The Directed Studies program was founded for 125 first-year students as an interdisciplinary course encompassing great works of Western thought.

Students

As the only college in Connecticut, Yale educated the sons of the elite.[20] Offenses for which students were punished included cardplaying, tavern-going, destruction of college property, and acts of disobedience to college authoritiesSony VAIO VPCF24M1E battery. During the period, Harvard was distinctive for the stability and maturity of its tutor corps, while Yale had youth and zeal on its side.[21]

The emphasis on classics gave rise to a number of private student societies, open only by invitation, which arose primarily as forums for discussions of modern scholarship, literature and politics. The first such organizations were debating societies: Crotonia in 1738, Linonia in 1753, and Brothers in Unity in 1768. Sony VAIO VPCF23S1E battery

19th century

Men leaning on the old Yale Fence facing Chapel Street, circa 1874

The Yale Report of 1828 was a dogmatic defense of the Latin and Greek curriculum against critics who wanted more courses in modern languages, mathematics, and science. Unlike higher education in Europe, there was no national curriculum for colleges and universities in the United States. In the competition for students and financial supportSony VAIO VPCF231S1E battery, college leaders strove to keep current with demands for innovation. At the same time, they realized that a significant portion of their students and prospective students demanded a classical background. The Yale report meant the classics would not be abandoned. At the same time, all institutions experimented with changes in the curriculum, often resulting in a dual trackSony VAIO VPCF23Q1E battery. In the decentralized environment of higher education in the United States, balancing change with tradition was a common challenge because no one could afford to be completely modern or completely classical.[23] At the same time a group of professors at Yale and New Haven Congregationalist ministers articulated a conservative response to the changes brought about by the Victorian cultureSony VAIO VPCF23M1E battery. They concentrated on developing a whole man possessed of religious values sufficiently strong to resist temptations from within, yet flexible enough to adjust to the 'isms' (professionalism, materialism, individualism, and consumerism) tempting him from without.[24] Perhaps the most well-remembered teacher was William Graham Sumner, professor from 1872 to 1909. He taught in the emerging disciplines of economics and sociology to overflowing classroomsSony VAIO VPCF22S8E battery. He bested President Noah Porter, who disliked social science and wanted Yale to lock into its traditions of classical education, 1879–81. Porter objected to Sumner's use of a textbook by Herbert Spencer that espoused agnostic materialism because it might intellectually, morally, and religiously harm students.[25]

Sports and debate

The Revolutionary War hero Nathan Hale (Yale 1773) was the prototype of the Yale ideal in the early 19th century: a manly yet aristocratic scholarSony VAIO VPCF22S1E battery, equally well-versed in knowledge and sports, and a patriot who regretted he had but one life to lose for his country. Western painter Frederic Remington (Yale 1900) was an artist whose heroes gloried in combat and tests of strength in the Wild West. The fictional, turn-of-the-20th-century Yale man Frank Merriwell embodied the heroic ideal without racial prejudiceSony VAIO VPCF22M1E battery, and his fictional successor Frank Stover in the novel Stover at Yale (1911) questioned the business mentality that had become prevalent at the school. Increasingly the students turned to athletic stars as their heroes, especially since winning the big game became the goal of the student body, and the alumni, as well as the team itself.[26]

Along with Harvard and Princeton, Yale students rejected elite British concepts about 'amateurism' in sports and constructed athletic programs that were uniquely AmericanSony VAIO VPCF22L1E battery, such as football.[27] The Harvard–Yale football rivalry began in 1875.

Yale's four-oared crew team, posing with 1876 Centennial Regatta trophy, won at Philadelphia

Between 1892, when Harvard and Yale met in the first intercollegiate debate, and 1909, the year of the first Triangular Debate of Harvard, Yale, and Princeton, the rhetoric, symbolism, and metaphors used in athletics were used to frame these early debatesSony VAIO VPCF22J1E battery. Debates were covered on front pages of college newspapers and emphasized in yearbooks, and team members even received the equivalent of athletic letters for their jackets. There even were rallies sending off the debating teams to matches. Yet, the debates never attained the broad appeal that athletics enjoyed. One reason may be that debates do not have a clear winner, as is the case in sports, and that scoring is subjectiveSony VAIO VPCF11S1E/B battery. In addition, with late 19th-century concerns about the impact of modern life on the human body, athletics offered hope that neither the individual nor the society was coming apart.[28]

In 1909–10, football faced a crisis resulting from the failure of the previous reforms of 1905–06 to solve the problem of serious injuries. There was a mood of alarm and mistrust, and, while the crisis was developingSony VAIO VPCF11M1E/H battery, the presidents of Harvard, Yale, and Princeton developed a project to reform the sport and forestall possible radical changes forced by government upon the sport. President Arthur Hadley of Yale, A. Lawrence Lowell of Harvard, and Woodrow Wilson of Princeton worked to develop moderate changes to reduce injuries. Their attempts, however, were reduced by rebellion against the rules committee and formation of the Intercollegiate Athletic AssociationSony VAIO VPCF11D4E battery. The big three had tried to operate independently of the majority, but changes did reduce injuries.

Expansion

Connecticut Hall, oldest building on the Yale campus, built between 1750 and 1753

Yale expanded gradually, establishing the Yale School of Medicine (1810), Yale Divinity School (1822), Yale Law School (1843), Yale Graduate School of Arts and Sciences (1847), the Sheffield Scientific School (1847), and the Yale School of Fine Arts (1869) Sony VAIO VPCF11C5E battery. In 1887, as the college continued to grow under the presidency of Timothy Dwight V, Yale College was renamed Yale University. The university would later add the Yale School of Music (1894), Yale School of Forestry & Environmental Studies (founded by Gifford Pinchot in 1901), Yale School of Public Health (1915), Yale School of Nursing (1923), Yale School of Drama (1955), Yale Physician Associate Program (1973) Sony VAIO VPCF11C4E/B battery, and Yale School of Management (1976). It would also reorganize its relationship with the Sheffield Scientific School.

Expansion caused controversy about Yale's new roles. Noah Porter, moral philosopher, was president from 1871 to 1886. During an age of tremendous expansion in higher education, Porter resisted the rise of the new research universitySony VAIO PCG-31114V battery, claiming that an eager embrace of its ideals would corrupt undergraduate education. Many of Porter's contemporaries criticized his administration, and historians since have disparaged his leadership. Levesque[31] argues Porter was not a simple-minded reactionary, uncritically committed to tradition, but a principled and selective conservativeSony VAIO PCG-31114M battery. He did not endorse everything old or reject everything new; rather, he sought to apply long-established ethical and pedagogical principles to a rapidly changing culture. He may have misunderstood some of the challenges of his time, but he correctly anticipated the enduring tensions that have accompanied the emergence and growth of the modern universitySony VAIO PCG-31113M battery.

Aerial view from the south, 1906

20th century

Behavioral sciences

Between 1925 and 1940, philanthropic foundations, especially ones connected with the Rockefellers, contributed about $7 million to support the Yale Institute of Human Relations and the affiliated Yerkes Laboratories of Primate Biology. The money went toward behavioral science research, which was supported by foundation officers who aimed to "improve mankind" under an informalSony VAIO PCG-31112M battery, loosely defined human engineering effort. The behavioral scientists at Yale, led by President James R. Angell and psychobiologist Robert M. Yerkes, tapped into foundation largesse by crafting research programs aimed to investigate, then suggest, ways to control, sexual and social behavior. For example, Yerkes analyzed chimpanzee sexual behavior in hopes of illuminating the evolutionary underpinnings of human development and providing information that could ameliorate dysfunctionSony VAIO PCG-31111M battery. Ultimately, the behavioral-science results disappointed foundation officers, who shifted their human-engineering funds toward biological sciences.[32]

Biology

Slack (2003) compares three groups that conducted biological research at Yale during overlapping periods between 1910 and 1970. Yale proved important as a site for this research. The leaders of these groups were Ross Granville Harrison, Grace E. PickfordSony VAIO PCG-41112M battery, and G. Evelyn Hutchinson, and their members included both graduate students and more experienced scientists. All produced innovative research, including the opening of new subfields in embryology, endocrinology, and ecology, respectively, over a long period of time. Harrison's group is shown to have been a classic research school; Pickford's and Hutchinson's were not. Pickford's group was successful in spite of her lack of departmental or institutional position or powerSony VAIO PCG-41111M battery. Hutchinson and his graduate and postgraduate students were extremely productive, but in diverse areas of ecology rather than one focused area of research or the use of one set of research tools. Hutchinson's example shows that new models for research groups are needed, especially for those that include extensive field researchSONY VAIO PCG-21212M battery.

Medicine

Milton Winternitz led Yale Medical School as its dean from 1920 to 1935. An innovative, even maverick, leader, he not only kept the school from going under but also turned it into a first-class research institution. Dedicated to the new scientific medicine established in Germany, he was equally fervent about "social medicine" and the study of humans in their culture and environmentSONY VAIO PCG-21211M battery. He established the "Yale System" of teaching, with few lectures and fewer exams, and strengthened the full-time faculty system; he also created the graduate-level Yale School of Nursing and the Psychiatry Department, built numerous new buildings, and accomplished much more. Progress toward his plans for an Institute of Human Relations, envisioned as a refuge where social scientists would collaborate with biological scientists in a holistic study of humankindSONY VAIO PCG-51212M battery, unfortunately lasted for only a few years before the opposition of resentful anti-Semitic colleagues drove him to resign.[34]

[edit]Faculty

Before World War II, most elite university faculties counted among their numbers few, if any, Jews, blacks, women, or other minorities; Yale was no exception. By 1980, this condition had been altered dramatically, as numerous members of those groups held faculty positions. SONY VAIO PCG-51211M battery

History and American Studies

The American studies program reflected the worldwide anti-Communist ideological struggle. Norman Holmes Pearson, who worked for the Office of Strategic Studies in London during World War II, returned to Yale and headed the new American studies program, in which scholarship quickly became an instrument of promoting libertySONY VAIO PCG-51112M battery. Popular among undergraduates, the program sought to instruct them in the fundamentals of American civilization and thereby instill a sense of nationalism and national purpose.[36] Also during the 1940s and 1950s, Wyoming millionaire William R. Coe made large contributions to the American studies programs at Yale University and at the University of Wyoming. Coe was concerned to celebrate the 'values' of the Western United States in order to meet the "threat of communism." SONY VAIO PCG-51111M battery

Women

Women studied at Yale University as early as 1876, in graduate-level programs at the Yale Graduate School of Arts and Sciences.

In 1966, Yale began discussions with its sister school Vassar College about merging to foster coeducation at the undergraduate level. Vassar, then all-female, declined the invitation. Both schools introduced coeducation independently in 1969SONY VAIO PCG-81212M battery. Amy Solomon was the first woman to register as a Yale undergraduate;[39] she was also the first woman at Yale to join an undergraduate society, St. Anthony Hall.

A decade into co-education, rampant student assault and harassment by faculty became the impetus for the trailblazing lawsuit Alexander v. Yale. While unsuccessful in the courts, the legal reasoning behind the case changed the landscape of sex discrimination law and resulted in the establishment of Yale's Grievance Board and the Yale Women's Center. Sony VAIO PCG-81112M battery In March 2011 a Title IX complaint was filed against Yale.

Class

Yale, like other Ivy League schools, instituted policies in the early 20th century designed artificially to increase the proportion of white Protestants of notable families in the student body (see numerus clausus), and was one of the last of the Ivies to eliminate such preferences, beginning with the class of 1970SONY VAIO PCG-71111M battery.

Town-gown relations

Yale has a complicated relationship with its home city; for example, thousands of students volunteer every year in a myriad of community organizations, but city officials, who decry Yale's exemption from local property taxes, have long pressed the university to do more to help. Under President Levin, Yale has financially supported many of New Haven's efforts to reinvigorate the citySONY VAIO PCG-7196M battery. Evidence suggests that the town and gown relationships are mutually beneficial. Still, the economic power of the university increased dramatically with its financial success amid a decline in the local economy.[43]

Yale in the 21st century

In 2007, Yale President Rick Levin characterized Yale's institutional priorities: "First, among the nation's finest research universities, Yale is distinctively committed to excellence in undergraduate education. Second, in our graduate and professional schoolsSONY VAIO PCG-7195M battery, as well as in Yale College, we are committed to the education of leaders."[44]

The Boston Globe wrote that "if there's one school that can lay claim to educating the nation's top national leaders over the past three decades, it's Yale."[45] Yale alumni were represented on the Democratic or Republican ticket in every U.S. Presidential election between 1972 and 2004SONY VAIO PCG-7194M battery. Yale-educated Presidents since the end of the Vietnam War include Gerald Ford, George H.W. Bush, Bill Clinton, and George W. Bush, and major-party nominees during this period include John Kerry (2004), Joseph Lieberman (Vice President, 2000), and Sargent Shriver (Vice President, 1972). Other Yale alumni who made serious bids for the Presidency during this period include Hillary Rodham Clinton (2008) SONY VAIO PCG-7192M battery, Howard Dean (2004), Gary Hart (1984 and 1988), Paul Tsongas (1992), Pat Robertson (1988) and Jerry Brown (1976, 1980, 1992).

Several explanations have been offered for Yale’s representation in national elections since the end of the Vietnam War. Various sources note the spirit of campus activism that has existed at Yale since the 1960s, and the intellectual influence of Reverend William Sloane Coffin on many of the future candidates. SONY PCG-8113M batteryYale President Richard Levin attributes the run to Yale’s focus on creating "a laboratory for future leaders," an institutional priority that began during the tenure of Yale Presidents Alfred Whitney Griswold and Kingman Brewster.[46] Richard H. Brodhead, former dean of Yale College and now president of Duke University, stated: "We do give very significant attention to orientation to the community in our admissionsSONY PCG-8112M battery, and there is a very strong tradition of volunteerism at Yale."[45] Yale historian Gaddis Smith notes "an ethos of organized activity" at Yale during the 20th century that led John Kerry to lead the Yale Political Union's Liberal Party, George Pataki the Conservative Party, and Joseph Lieberman to manage the Yale Daily News.[47] Camille Paglia points to a history of networking and elitismSONY PCG-7134M battery : "It has to do with a web of friendships and affiliations built up in school."[48] CNN suggests that George W. Bush benefited from preferential admissions policies for the "son and grandson of alumni," and for a "member of a politically influential family."[49] New York Times correspondent Elisabeth Bumiller and The Atlantic Monthly correspondent James Fallows credit the culture of community and cooperation that exists between students, facultySONY PCG-7131M battery , and administration, which downplays self-interest and reinforces commitment to others.[50]

During the 1988 presidential election, George H. W. Bush (Yale '48) derided Michael Dukakis for having "foreign-policy views born in Harvard Yard's boutique." When challenged on the distinction between Dukakis's Harvard connection and his own Yale background, he said that, unlike Harvard, Yale's reputation was "so diffuseSONY PCG-7122M battery, there isn't a symbol, I don't think, in the Yale situation, any symbolism in it" and said Yale did not share Harvard's reputation for "liberalism and elitism". In 2004, Howard Dean stated, "In some ways, I consider myself separate from the other three (Yale) candidates of 2004. Yale changed so much between the class of '68 and the class of '71. My class was the first class to have women in it; it was the first class to have a significant effort to recruit African AmericansSONY PCG-7121M battery. It was an extraordinary time, and in that span of time is the change of an entire generation".

In 2009, former British Prime Minister Tony Blair picked Yale as one location – the others are Britain's Durham University and Universiti Teknologi Mara – for the Tony Blair Faith Foundation's United States Faith and Globalization Initiative.[54] As of 2009, former Mexican President Ernesto Zedillo is the director of the Yale Center for the Study of Globalization and teaches an undergraduate seminarSONY PCG-7113M battery, "Debating Globalization".[55] As of 2009, former presidential candidate and DNC chair Howard Dean teaches a residential college seminar, "Understanding Politics and Politicians."[56] Also, in 2009, an alliance was formed between Yale, University College London and both schools’ affiliated hospital complexes to conduct research focused on the direct improvement of patient care—a growing field known as translational medicineSONY PCG-7112M battery . President Richard Levin noted that Yale has hundreds of other partnerships across the world, but "no existing collaboration matches the scale of the new partnership with UCL."

Administration and organization

The President and Fellows of Yale College, also known as the Yale Corporation, is the governing board of the University.

Yale's president Richard C. Levin is one of the highest paid university presidents in the United States with a 2008 salary of $1.5 million. SONY PCG-8Z3M battery

The Yale Provost's Office has launched several women into prominent university presidencies. In 1977, Hanna Holborn Gray was appointed acting President of Yale from this position, and went on to become President of the University of Chicago, the first woman to be full president of a major university. In 1994, Yale Provost Judith Rodin became the first female president of an Ivy League institution at the University of PennsylvaniaSONY PCG-8Z2M battery . In 2002, Provost Alison Richard became the Vice Chancellor of the University of Cambridge. In 2004, Provost Susan Hockfield became the President of the Massachusetts Institute of Technology. In 2007, Deputy Provost Kim Bottomly was named President of Wellesley College.

In 2008, Provost Andrew Hamilton was confirmed to be the Vice Chancellor of the University of Oxford.[59] Former Dean of Yale College Richard H. Brodhead serves as the President of Duke UniversitySONY PCG-8Z1M battery.

Staff and labor unions

Main article: Federation of Hospital and University Employees

Much of Yale University's staff, including most maintenance staff, dining hall employees, and administrative staff, are unionized. Clerical and technical employees are represented by Local 34 of Unite Here and service and maintenance workers by Local 35 of the same international. Together with the Graduate Employees and Students Organization (GESO) SONY PCG-8Y3M battery , an unrecognized union of graduate employees, Locals 34 and 35 make up the Federation of Hospital and University Employees. Also included in FHUE are the dietary workers at Yale-New Haven Hospital, who are members of 1199 SEIU.[60] In addition to these unions, officers of the Yale University Police Department are members of the Yale Police Benevolent Association, which affiliated in 2005 with the Connecticut Organization for Public Safety Employees. SONY PCG-8Y2M battery Finally, Yale security officers voted to join the International Union of Security, Police and Fire Professionals of America in fall 2010 after the National Labor Relations Board ruled they could not join AFSCME; the Yale administration contested the election.[62]

Yale has a history of difficult and prolonged labor negotiations, often culminating in strikes.[63] There have been at least eight strikes since 1968SONY PCG-7Z1M battery, and The New York Times wrote that Yale has a reputation as having the worst record of labor tension of any university in the U.S.[64] Yale's unusually large endowment exacerbates the tension over wages. Moreover, Yale has been accused of failing to treat workers with respect.[65] In a 2003 strike, however, the university claimed that more union employees were working than striking. SONY PCG-6W2M battery  Professor David Graeber was 'retired' after he came to the defense of a student who was involved in campus labor issues.[67]

Campus

Yale Law School

Yale's central campus in downtown New Haven covers 260 acres (1.1 km2). An additional 500 acres (2.0 km2) includes the Yale golf course and nature preserves in rural Connecticut and Horse IslandSONY PCG-5J5M battery.

Yale is noted for its largely Collegiate Gothic campus[69] as well as for several iconic modern buildings commonly discussed in architectural history survey courses: Louis Kahn's Yale Art Gallery[70] and Center for British Art, Eero Saarinen's Ingalls Rink and Ezra Stiles and Morse Colleges, and Paul Rudolph's Art & Architecture BuildingSONY PCG-5K2M battery. Yale also owns and has restored many noteworthy 19th-century mansions along Hillhouse Avenue, which was considered the most beautiful street in America by Charles Dickens when he visited the United States in the 1840s.

Many of Yale's buildings were constructed in the Collegiate Gothic architecture style from 1917 to 1931, financed largely by Edward S. Harkness[71] Stone sculpture built into the walls of the buildings portray contemporary college personalities such as a writer, an athleteSONY PCG-5K1M battery, a tea-drinking socialite, and a student who has fallen asleep while reading. Similarly, the decorative friezes on the buildings depict contemporary scenes such as policemen chasing a robber and arresting a prostitute (on the wall of the Law School), or a student relaxing with a mug of beer and a cigarette. The architect, James Gamble Rogers, faux-aged these buildings by splashing the walls with acid, SONY PCG-5J4M battery  deliberately breaking their leaded glass windows and repairing them in the style of the Middle Ages, and creating niches for decorative statuary but leaving them empty to simulate loss or theft over the ages. In fact, the buildings merely simulate Middle Ages architecture, for though they appear to be constructed of solid stone blocks in the authentic mannerSONY PCG-5J1M battery, most actually have steel framing as was commonly used in 1930. One exception is Harkness Tower, 216 feet (66 m) tall, which was originally a free-standing stone structure. It was reinforced in 1964 to allow the installation of the Yale Memorial Carillon.

Other examples of the Gothic (also called neo-Gothic and collegiate Gothic) style are on Old Campus by such architects as Henry Austin, Charles C. Haight and Russell SturgisSONY PCG-5G2M battery. Several are associated with members of the Vanderbilt family, including Vanderbilt Hall,[73] Phelps Hall,[74] St. Anthony Hall (a commission for member Frederick William Vanderbilt), the Mason, Sloane and Osborn laboratories, dormitories for the Sheffield Scientific School (the engineering and sciences school at Yale until 1956) and elements of Silliman College, the largest residential college. Sony VAIO PCG-8131M battery

Statue of Nathan Hale in front of Connecticut Hall

The oldest building on campus, Connecticut Hall (built in 1750), is in the Georgian style. Georgian-style buildings erected from 1929 to 1933 include Timothy Dwight College, Pierson College, and Davenport College, except the latter's east, York Street façade, which was constructed in the Gothic styleSony VAIO PCG-8152M battery.

The Beinecke Rare Book and Manuscript Library, designed by Gordon Bunshaft of Skidmore, Owings, and Merrill, is one of the largest buildings in the world reserved exclusively for the preservation of rare books and manuscripts.[76] It is located near the center of the University in Hewitt Quadrangle, which is now more commonly referred to as "Beinecke Plaza"Sony VAIO PCG-31311M battery.

The library's six-story above-ground tower of book stacks is surrounded by a windowless rectangular building with walls made of translucent Vermont marble, which transmit subdued lighting to the interior and provide protection from direct light, while glowing from within after darkSony VAIO PCG-31111M battery.

Interior of Beinecke Library

The sculptures in the sunken courtyard by Isamu Noguchi are said to represent time (the pyramid), the sun (the circle), and chance (the cube).

Alumnus Eero Saarinen, Finnish-American architect of such notable structures as the Gateway Arch in St. Louis, Washington Dulles International Airport main terminal, Bell Labs Holmdel Complex and the CBS Building in ManhattanSony VAIO PCG-8112M battery, designed Ingalls Rink at Yale and the newest residential colleges of Ezra Stiles and Morse. These latter were modelled after the medieval Italian hilltown of San Gimignano – a prototype chosen for the town's pedestrian-friendly milieu and fortress-like stone towers. These tower forms at Yale act in counterpoint to the college's many Gothic spires and Georgian cupolas. Sony VAIO PCG-7186M battery

Yale's Office of Sustainability develops and implements sustainability practices at Yale.[78] Yale is committed to reduce its greenhouse gas emissions 10% below 1990 levels by the year 2020. As part of this commitment, the university allocates renewable energy credits to offset some of the energy used by residential colleges. Sony VAIO PCG-7171M battery Eleven campus buildings are candidates for LEED design and certification.[80] Yale Sustainable Food Project initiated the introduction of local, organic vegetables, fruits, and beef to all residential college dining halls.[81] Yale was listed as a Campus Sustainability Leader on the Sustainable Endowments Institute’s College Sustainability Report Card 2008, and received a “B+” grade overall. Sony VAIO PCG-9Z1M battery

Grove Street Cemetery, New Haven

Marsh Botanical Garden

Yale Sustainable Food Project Farm

Notable nonresidential campus buildings

Notable nonresidential campus buildings and landmarks include Battell Chapel, Beinecke Rare Book Library, Harkness Tower, Ingalls Rink, Kline Biology Tower, Osborne Memorial Laboratories, Payne Whitney Gymnasium, Peabody Museum of Natural History, Sterling Hall of Medicine, Sterling Law Buildings, Sterling Memorial Library, Woolsey Hall, Yale Center for British Art, Yale University Art Gallery, and Yale Art & Architecture BuildingSony VAIO PCG-5S1M battery.

Yale's secret society buildings (some of which are called "tombs") were built both to be private yet unmistakable. A diversity of architectural styles is represented: Berzelius, Donn Barber in an austere cube with classical detailing (erected in 1908 or 1910); Book and Snake, Louis R. Metcalfe in a Greek Ionic style (erected in 1901); Elihu, architect unknown but built in a Colonial style (constructed on an early 17th century foundation although the building is from the 18th century) Sony VAIO PCG-5P1M battery; Mace and Chain, in a late colonial, early Victorian style (built in 1823). Interior moulding is said to have belonged to Benedict Arnold; Manuscript Society, King Lui-Wu with Dan Kniley responsible for landscaping and Josef Albers for the brickwork intaglio mural. Building constructed in a mid-century modern style; Scroll and Key, Richard Morris Hunt in a Moorish- or Islamic-inspired Beaux-Arts style (erected 1869–70) Sony VAIO PCG-5N2M battery; Skull and Bones, possibly Alexander Jackson Davis or Henry Austin in an Egypto-Doric style utilizing Brownstone (in 1856 the first wing was completed, in 1903 the second wing, 1911 the Neo-Gothic towers in rear garden were completed); St. Elmo, (former tomb) Kenneth M. Murchison, 1912, designs inspired by Elizabethan manor. Current location, brick colonial; and Wolf's Head, Bertram Grosvenor Goodhue (erected 1923-4) Sony VAIO PCG-3C2M battery.

Campus safety

In addition to the Yale University Police Department, founded in 1894,[83] a variety of safety services are available including blue phones, a safety escort, and a shuttle service.[84]

In the 1970s and 1980s, poverty and violent crime rose in New Haven, dampening Yale's student and faculty recruiting efforts.[85] Between 1990 and 2006Sony VAIO PCG-8161M battery, New Haven's crime rate fell by half, helped by a community policing strategy by the New Haven police and Yale's campus became the safest among the Ivy League and other peer schools.[86] Nonetheless, across the board, the city of New Haven has retained the highest levels of crime of any Ivy League city for more than a decade. Sony VAIO PCG-8141M battery

In 2002–04, Yale reported 14 violent crimes (homicide, aggravated assault, or sex offenses), when Harvard reported 83 such incidents, Princeton 24, and Stanford 54. The incidence of nonviolent crime (burglary, arson, and motor vehicle theft) was also lower than most of its peer schools.

In 2004, a national non-profit watchdog group called Security on Campus filed a complaint with the Department of Education, accusing Yale of under-reporting rape and sexual assaults. Sony VAIO PCG-3J1M battery

Academics

Admissions

Yale University's Sterling Memorial Library, as seen from Maya Lin's sculpture, Women's Table. The sculpture records the number of women enrolled at Yale over its history; female undergraduates were not admitted until 1969.

For the Class of 2016, Yale accepted 1,975 students out of a record 28,975 total applications, hitting a record-low acceptance of 6.8%.Sony VAIO PCG-3H1M battery

The university is one of only seven institutions of higher education in the world that is need blind and full-need to all of its applicants, including international students.[91] Through its program of need-based financial aid, Yale commits to meet the full demonstrated financial need of all applicants, and more than 50% of Yale students receive financial assistanceSony VAIO PCG-3F1M battery. Most financial aid is in the form of grants and scholarships that do not need to be paid back to the university, and the average scholarship for the 2011–2012 school year was $35,400. More than 750 students in Yale College are expected to have $0 parental contribution.

Half of all Yale undergraduates are women, more than 30% are minorities, and 8% are international studentsSony VAIO PCG-3C1M battery. Fifty-five percent attended public schools and 45% attended private, religious, or international schools.[92] In addition, Yale College admits a small group of nontraditional students each year, through the Eli Whitney Students Program.

Collections

The Night Café, Vincent van Gogh, 1888, Yale Art Gallery.

Yale University Library, which holds over 12 million volumes, is the second-largest university collection in the United States.[93] The main library, Sterling Memorial Library, contains about four million volumes, and other holdings are dispersed at subject librariesSony VAIO PCG-9Z2L battery.

Rare books are found in a number of Yale collections. The Beinecke Rare Book Library has a large collection of rare books and manuscripts. The Harvey Cushing/John Hay Whitney Medical Library includes important historical medical texts, including an impressive collection of rare books, as well as historical medical instrumentsSony VAIO PCG-9Z1L battery. The Lewis Walpole Library contains the largest collection of 18th-century British literary works. The Elizabethan Club, technically a private organization, makes its Elizabethan folios and first editions available to qualified researchers through Yale.

Yale's museum collections are also of international stature. The Yale University Art Gallery is the country's first university-affiliated art museumSony VAIO PCG-9131L battery. It contains more than 180,000 works, including old masters and important collections of modern art, in the Swartout and Kahn buildings. The latter, Louis Kahn's first large-scale American work (1953), was renovated and reopened in December 2006. The Yale Center for British Art, the largest collection of British art outside of the UK, grew from a gift of Paul Mellon and is housed in another Kahn-designed buildingSony VAIO PCG-8161L battery.

The Peabody Museum of Natural History in New Haven is used by school children and contains research collections in anthropology, archaeology, and the natural environment. The Yale University Collection of Musical Instruments, affiliated with the Yale School of Music, is perhaps the least well-known of Yale's collections, because its hours of opening are restrictedSony VAIO PCG-8152L battery.

The museums also house the artifacts brought to the United States from Peru by Yale history professor Hiram Bingham in his expedition to Machu Picchu in 1912 – when the removal of such artifacts was legal. Peru would now like to have the items returned; Yale has so far declined.[94] In November 2010, a Yale University representative agreed to return the artifacts to a Peruvian university. Sony VAIO PCG-8141L battery

The 'U.S. News & World Report' ranked Yale third among national universities in 2012, as it has for each of the past fifteen years, in every case behind, in either order or tied, Princeton and Harvard.[102] It was ranked fourth in the 2011 QS World University Rankings and tenth in the 2010 Times Higher Education World University Rankings. Sony VAIO PCG-8131L battery (In 2010 Times Higher Education World University Rankings and QS World University Rankings parted ways to produce separate rankings.) Yale had featured in the top five for each of the past four years. The same ranking also named Yale as the fifth best university in the world for arts and humanities. Shanghai Jiao Tong University’s Academic Ranking of World UniversitiesSony VAIO PCG-81312L battery, placed Yale at 11 in 2010. ARWU also ranked Yale 25th in Natural Sciences and Mathematics, 76–100th in Engineering/Technology and Computer Sciences, 9th in Life and Agriculture Sciences, 21st in Clinical Medicine and Pharmacy and 8th in Social Sciences worldwide.

Faculty, research, and intellectual traditions

The college is, after normalization for institution size, the tenth-largest baccalaureate source of doctoral degree recipients in the United States, and the largest such source within the Ivy League. Sony VAIO PCG-81214L battery

Yale's English and Comparative Literature departments were part of the New Criticism movement. Of the New Critics, Robert Penn Warren, W.K. Wimsatt, and Cleanth Brooks were all Yale faculty. Later, the Yale Comparative literature department became a center of American deconstruction. Jacques Derrida, the father of deconstructionSony VAIO PCG-81115L battery, taught at the Department of Comparative Literature from the late seventies to mid-1980s. Several other Yale faculty members were also associated with deconstruction, forming the so-called "Yale School". These included Paul de Man who taught in the Departments of Comparative Literature and French, J. Hillis Miller, Geoffrey Hartman Sony VAIO PCG-81114L battery (both taught in the Departments of English and Comparative Literature), and Harold Bloom (English), whose theoretical position was always somewhat specific, and who ultimately took a very different path from the rest of this group. Yale's history department has also originated important intellectual trendsSony VAIO PCG-81113L battery. Historians C. Vann Woodward and David Brion Davis are credited with beginning in the 1960s and 1970s an important stream of southern historians; likewise, David Montgomery, a labor historian, advised many of the current generation of labor historians in the country. Yale's Music School and Department fostered the growth of Music Theory in the latter half of the 20th centurySony VAIO PCG-7142L battery. The Journal of Music Theory was founded there in 1957; Allen Forte and David Lewin were influential teachers and scholars.

Since summer 2010, Yale has also been host to Yale Publishing Course.

Campus life

Yale is a medium-sized research university, most of whose students are in the graduate and professional schools. Undergraduates, or Yale College students, come from a variety of ethnic, national, and socio-economic backgrounds. Of the 2010–2011 freshman class, 10% are non-U.S. citizens, while 54% went to public high schools. Sony VAIO PCG-7141L batteryYale is also an open campus for the gay community. Its active LGBT community first received wide publicity in the late 1980s, when Yale obtained a reputation as the "gay Ivy," due largely to a 1987 Wall Street Journal article written by Julie V. Iovine, an alumna and the spouse of a Yale faculty member. During the same yearSony VAIO PCG-71111L battery, the University hosted a national conference on gay and lesbian studies and established the Lesbian and Gay Studies Center.[110] The slogan "One in Four, Maybe More" was coined by the campus gay community. While the community in the 1980s and early 1990s was very activist, today most LGBT events have become part of the general campus social scene.[111] For example, the annual LGBT Co-op Dance attracts straight as well as gay studentsSony VAIO PCG-61411L battery.

Residential colleges

Main article: Residential colleges of Yale University

Yale has a system of 12 residential colleges, instituted in 1933 through a grant by Yale graduate Edward S. Harkness, who admired the college systems at Oxford and Cambridge. Each college has a Dean, Master, affiliated faculty, and resident Fellows. Each college also features distinctive architecture, secluded courtyards, a commons roomSony VAIO PCG-61112L battery, meeting rooms/classrooms, and a dining hall; in addition some have chapels, libraries, squash courts, pool tables, short order dining counters, cafes, or darkrooms. Each college at Yale offers its own seminars, social events, and Master's Teas, and most of them are open to students from other residential colleges. However, Yale remains a unitary university, while Oxford and Cambridge colleges are self-governed charitable institutions in their own rightSony VAIO PCG-61111L battery.

All of Yale's 2,000 undergraduate courses are open to members of any college.

The dominant architecture of the residential colleges is Neo-Gothic, in line with the characteristic architecture of the university. Several colleges have other period architecture, such as Georgian and Federal, and the two most recent (Morse and Ezra Stiles) have modernist concrete exteriors.

Students are assigned to a residential college in their freshman year. Sony VAIO PCG-5T4L battery Only two residential colleges (Silliman and Timothy Dwight) house freshmen. The majority of on-campus freshmen live on the "Old Campus", an extensive quadrangle formed by older buildings. Each residential college has its own dining hall, but students are permitted to eat in any residential college dining hall or the large dining facility called "CommonsSony VAIO PCG-5T3L battery."

Residential colleges are named for important figures or places in university history or notable alumni.

List of residential colleges

This is a list of residential colleges at Yale.[112]

Berkeley College, named for the Rt. Rev. George Berkeley (1685–1753), early benefactor of Yale.

Branford College, named for Branford, Connecticut, where Yale was briefly located.

Calhoun College, named for John C. Calhoun, vice-president and influential member of Congress of the United StatesSony VAIO PCG-5T2L battery.

Davenport College, named for Rev. John Davenport, the founder of New Haven. Often called "D'port".

Ezra Stiles College, named for the Rev. Ezra Stiles, a president of Yale. Generally called "Stiles," despite an early-1990s crusade by then-master Traugott Lawler to preserve the use of the full name in everyday speech. Its buildings were designed by Eero Saarinen.[117]

Jonathan Edwards College, named for theologian, Yale alumnus, and Princeton co-founder Jonathan Edwards. Generally called "J.E." The oldest of the residential colleges, J.E. is the only college with an independent endowment, the Jonathan Edwards Trust. Sony VAIO PCG-5S3L battery

Morse College, named for Samuel F. B. Morse, inventor of Morse code and the telegraph. Also designed by Eero Saarinen.

Pierson College, named for Yale's first rector, Abraham Pierson.[120] A statue of Abraham Pierson stands on Yale's Old Campus.

Saybrook College, named for Old Saybrook, Connecticut, the town in which Yale was founded.

Silliman College, named for noted scientist and Yale professor Benjamin Silliman. About half of its structures were originally part of the Sheffield Scientific SchoolSony VAIO PCG-5S2L battery.

Timothy Dwight College, named for the two Yale presidents of that name, Timothy Dwight IV and Timothy Dwight V. Often abbreviated "T.D."

Trumbull College, named for Jonathan Trumbull, first Governor of Connecticut.

In 1998, Yale launched a series of extensive renovations to the older residential buildings, which in many decades of existence had seen only routine maintenance and incremental improvements to plumbing, heating, and electrical and network wiringSony VAIO PCG-5S1L battery. Many of these renovations have now been completed, and among other improvements, renovated colleges feature newly built basement facilities including snack bars called "butteries," game rooms, theaters, athletic facilities, fine arts studios, and music practice rooms.

In June 2008, President Levin announced that the Yale Corporation had authorized the construction of two new residential colleges, scheduled to open in 2013Sony VAIO PCG-5R2L battery. The additional colleges, to be built in the northern part of the campus, will allow for expanded admission and a reduction of crowding in the existing residential colleges.[126] Designs have been released, and some public controversy has surfaced over Yale's decision to demolish a number of historic buildings on the site, including a recently constructed library, in order to clear it for the $600 million new structuresSony VAIO PCG-5R1L battery.

Student organizations

Main article: List of Yale University student organizations

The university hosts a variety of student journals, magazines, and newspapers. The latter categories include the Yale Daily News, which was first published in 1878, the weekly Yale Herald, published since 1986, and The Yale Record, which was established in 1872 and is America's oldest college humor magazine. Dwight Hall, an independentSony VAIO PCG-5P4L battery, non-profit community service organization, oversees more than 2,000 Yale undergraduates working on more than 70 community service initiatives in New Haven. The Yale College Council runs several agencies that oversee campus wide activities and student services. The Yale Dramatic Association and Bulldog Productions cater to the theater and film communitiesSony VAIO PCG-5P2L battery, respectively. In addition, the Yale Drama Coalition serves to coordinate between and provide resources for the various Sudler Fund sponsored theater productions which run each weekend.

The Yale Political Union is advised by alumni political leaders such as John Kerry and George Pataki. The Yale International Relations Association functions as the umbrella organization for the top-ranked Model UN teamSony VAIO PCG-5N4L battery.

The campus also includes several fraternities and sororities. The campus features at least 18 a cappella groups, the most famous of which is The Whiffenpoofs, who are unusual among college singing groups in being made up solely of senior men.

Yale's secret societies include Skull and Bones, Scroll and Key, Wolf's Head, Book and Snake, Elihu, Berzelius, St. Elmo, Manuscript, and Mace and ChainSony VAIO PCG-5N2L battery. The two oldest existing honor societies are the Aurelian (1910) and the Torch Honor Society (1916).

The Elizabethan Club, a social club, has a membership of undergraduates, graduates, faculty and staff with literary or artistic interests. Membership is by invitation. Members and their guests may enter the "Lizzie's" premises for conversation and tea. The club owns first editions of a Shakespeare Folio, several Shakespeare QuartosSony VAIO PCG-51513L battery, a first edition of Milton's Paradise Lost, among other important literary texts.

[edit]Traditions

Yale seniors at graduation smash clay pipes underfoot to symbolize passage from their "bright college years".[129] ("Bright College Years," the University's alma mater, was penned in 1881 by Henry Durand, Class of 1881, to the tune of Die Wacht am Rhein.) Yale's student tour guides tell visitors that students consider it good luck to rub the toe of the statue of Theodore Dwight Woolsey on Old CampusSony VAIO PCG-51511L battery. Actual students rarely do so.[130] In the second half of the twentieth century Bladderball, a campus-wide game played with a large inflatable ball, became a popular tradition but was banned by administration due to safety concerns. In spite of administration opposition, students revived the game in 2009 and 2011, but its future remains uncertain. Sony VAIO PCG-51412L battery

Athletics

The Walter Camp Gate at the Yale Athletic Complex.

Main article: Yale Bulldogs

Yale supports 35 varsity athletic teams that compete in the Ivy League Conference, the Eastern College Athletic Conference, the New England Intercollegiate Sailing Association. Yale athletic teams compete intercollegiately at the NCAA Division I level. Like other members of the Ivy League, Yale does not offer athletic scholarshipsSony VAIO PCG-51411L battery.

Yale has numerous athletic facilities, including the Yale Bowl (the nation's first natural "bowl" stadium, and prototype for such stadiums as the Los Angeles Memorial Coliseum and the Rose Bowl), located at The Walter Camp Field athletic complex, and the Payne Whitney Gymnasium, the second-largest indoor athletic complex in the world. Sony VAIO PCG-51312L battery October 21, 2000 marked the dedication of Yale's fourth new boathouse in 157 years of collegiate rowing. The Richard Gilder Boathouse is named to honor former Olympic rower Virginia Gilder '79 and her father Richard Gilder '54, who gave $4 million towards the $7.5 million project. Yale also maintains the Gales Ferry site where the heavyweight men's team trains for the Yale-Harvard Boat RaceSony VAIO PCG-51311L battery.

Yale crew is the oldest collegiate athletic team in America, and won Olympic Games Gold Medal for men's eights in 1924 and 1956. The Yale Corinthian Yacht Club, founded in 1881, is the oldest collegiate sailing club in the world.

In 1896, Yale and Johns Hopkins played the first known ice hockey game in the United States. Since 2006, the school's ice hockey clubs have played a commemorative game. Sony VAIO PCG-51211L battery

For kicks, between 1954 and 1982, residential college teams and student organizations played bladderball.

Yale students claim to have invented Frisbee, by tossing empty Frisbie Pie Company tins.

Song

Notable among the songs commonly played and sung at events such as commencement, convocation, alumni gatherings, and athletic games are the alma mater, "Bright College Years", and the Yale fight song, "Down the Field."Sony VAIO PCG-41112L battery

Two other fight songs, "Bulldog, Bulldog" and "Bingo Eli Yale", written by Cole Porter during his undergraduate days, are still sung at football games. Another fight song sung at games is "Boola Boola". According to “College Fight Songs: An Annotated Anthology” published in 1998, “Down the Field” ranks as the fourth-greatest fight song of all timeSony VAIO PCG-3A4L battery.

Mascot

The school mascot is "Handsome Dan", the known Yale bulldog, and the Yale fight song (written by Cole Porter while he was a student at Yale) contains the refrain, "Bulldog, bulldog, bow wow wow." The school color, since 1894, is Yale Blue[138]. Yale's Handsome Dan is believed to be the first college mascot in America, having been established in 1889.Sony VAIO PCG-3A3L battery

Yale athletics are supported by the Yale Precision Marching Band. Precision is used here ironically; the band is a scatter-style band that runs wildly between formations rather than actually marching.[140] The band attends every home football game and many away, as well as most hockey and basketball games throughout the winterSony VAIO PCG-3A2L battery.

Yale intramural sports are also a significant aspect of student life. Students compete for their respective residential colleges, fostering a friendly rivalry. The year is divided into fall, winter, and spring seasons, each of which includes about ten different sports. About half the sports are coeducational. At the end of the year, the residential college with the most points (not all sports count equally) wins the Tyng CupSony VAIO PCG-3A1L battery.

Notable people

Benefactors

Yale has had many financial supporters, but some stand out by the magnitude or timeliness of their contributions. Among those who have made large donations commemorated at the university are: Elihu Yale; Jeremiah Dummer; the Harkness family (Edward, Anna, and William); the Beinecke family (Edwin, Frederick, and Walter); John William SterlingSony VAIO PCG-394L battery; Payne Whitney; Joseph E. Sheffield, Paul Mellon, Charles B. G. Murphy and William K. Lanman. The Yale Class of 1954, led by Richard Gilder, donated $70 million in commemoration of their 50th reunion.[141]

Notable alumni and faculty

Further information: List of Yale University people and List of Yale Law School alumni

Academy Award Winning Actress Meryl Streep, Yale School of Drama class of 1975

President William Howard Taft, graduated from Yale in 1878Sony VAIO PCG-393L battery.

Yale has produced alumni distinguished in their respective fields. Among the best-known are U.S. Presidents William Howard Taft, Gerald Ford, George H.W. Bush, Bill Clinton and George W. Bush; Italian premier Mario Monti; Supreme Court Justices Sonia Sotomayor, Samuel Alito and Clarence Thomas; U.S. Secretaries of State Hillary Rodham Clinton, Cyrus Vance, and Dean AchesonSony VAIO PCG-391L battery; Democratic Presidential nominee John Kerry; authors Sinclair Lewis, Stephen Vincent Benét, and Tom Wolfe; lexicographer Noah Webster; inventors Samuel F.B. Morse and Eli Whitney; patriot and "first spy" Nathan Hale; theologian Jonathan Edwards; Academy Award winning actors and directors Paul Newman, Vincent Price, Meryl Streep, Jodie Foster, Frances McDormand, Angela Bassett, Elia Kazan, George Roy Hill, Oliver Stone, and Michael CiminoSony VAIO PCG-384L battery; Head of Rose Bruford College of Theatre and Performance in London Michael Earley; "Father of American football" Walter Camp; composers Charles Ives and Cole Porter; Peace Corps founder Sargent Shriver; child psychologist Benjamin Spock; sculptor Richard Serra; film critic Gene Siskel; television commentators Dick Cavett and Anderson Cooper; pundits William F. Buckley, Jr., and Fareed ZakariaSony VAIO PCG-383L battery; Time Magazine co-founder Henry Luce; President of Mexico Ernesto Zedillo; President of the Federal Republic of Germany Karl Carstens; Philippines President José Paciano Laurel; Nobel Laureate in Economics and popular book author Paul Krugman; inventor of the cyclotron and Nobel Laureate in Physics, Ernest Lawrence; director of the Human Genome Project, Francis S. Collins; economist Irving Fischer, "The Father of Monetarism"Sony VAIO PCG-382L battery; mathematician and chemist Josiah Willard Gibbs; Morgan Stanley founder Harold Stanley; Boeing CEO James McNerney; FedEx founder Frederick W. Smith; Turkish prime minister Tansu Çiller; Time Warner president Jeffrey Bewkes; Electronic Arts co-founder Bing Gordon; architects Eero Saarinen and Norman FosterSony VAIO PCG-381L battery.

Yale in fiction and popular culture

Further information: List of Yale University people and Yale in popular culture

Yale University, one of the oldest universities in the United States, is a cultural referent as an institution that produces some of the most elite members of society[142] and its grounds, alumni, and students have been prominently portrayed in fiction and U.S. popular culture. For example, Owen Johnson's novel, Stover at Yale, follows the college career of Dink StoverSony VAIO PCG-7185L battery and Frank Merriwell, the model for all later juvenile sports fiction, plays football, baseball, crew, and track at Yale while solving mysteries and righting wrongs.[144][145] Yale University was also mentioned in F. Scott Fitzgerald's novel "The Great Gatsby". Nick Carraway and Tom Buchanan have both graduated from New Haven. The narrator (the former) has written a series of editorials for the Yale News and the following has been "one of the most powerful ends that ever played football at New Haven"Sony VAIO PCG-7184L battery.

 
The Grand Canyon (Hopi: Ongtupqa; Yavapai: Wi:kaʼi:la) is a steep-sided canyon carved by the Colorado River in the United States in the state of Arizona. It is contained within and managed by Grand Canyon National Park, the Hualapai Tribal Nation, and the Havasupai TribeSony VAIO VPCF24Q1E battery. President Theodore Roosevelt was a major proponent of preservation of the Grand Canyon area, and visited it on numerous occasions to hunt and enjoy the scenery. It is considered one of the Seven Natural Wonders of the World.[1]

The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and attains a depth of over a mile (6,000 feet / 1,800 metres) Sony VAIO VPCF13M1E/H battery Nearly two billion years of the Earth's geological history have been exposed as the Colorado River and its tributaries cut their channels through layer after layer of rock while the Colorado Plateau was uplifted.[3] While the specific geologic processes and timing that formed the Grand Canyon are the subject of debate by geologists, Sony VAIO VPCF12Z1E/BI battery recent evidence suggests the Colorado River established its course through the canyon at least 17 million years ago. Since that time, the Colorado River continued to erode and form the canyon to its present-day configuration.[7]

For thousands of years, the area has been continuously inhabited by Native Americans who built settlements within the canyon and its many caves. The Pueblo people considered the Grand Canyon ("Ongtupqa" in Hopi language) Sony VAIO VPCF12S1E/B battery a holy site and made pilgrimages to it.[8] The first European known to have viewed the Grand Canyon was García López de Cárdenas from Spain, who arrived in 1540.

Geography

The Grand Canyon is a huge fissure in the Colorado Plateau that exposes uplifted Proterozoic and Paleozoic strata, and is also one of the 19 distinct physiographic sections of the Colorado Plateau province. It is not the deepest canyon in the world (Kali Gandaki Gorge in Nepal is far deeper) Sony VAIO VPCF13Z8E/BI battery, nor the widest (Capertee Valley in Australia is about 0.6 mi/1 km wider and longer than Grand Canyon); however, the Grand Canyon is known for its visually overwhelming size and its intricate and colorful landscape. Geologically it is significant because of the thick sequence of ancient rocks that are beautifully preserved and exposed in the walls of the canyon. These rock layers record much of the early geologic history of the North American continentSony VAIO VPCF13Z8E battery.

A map of the Grand Canyon and surrounding areas, circa 1908.

Uplift associated with mountain formation later moved these sediments thousands of feet upward and created the Colorado Plateau. The higher elevation has also resulted in greater precipitation in the Colorado River drainage area, but not enough to change the Grand Canyon area from being semi-arid. The uplift of the Colorado Plateau is uneven,Sony VAIO VPCF13M1E/B battery and the Kaibab Plateau that Grand Canyon bisects is over a thousand feet higher at the North Rim (about 1,000 ft/300 m) than at the South Rim. Almost all runoff from the North Rim (which also gets more rain and snow) flows toward the Grand Canyon, while much of the runoff on the plateau behind the South Rim flows away from the canyon (following the general tilt) Sony VAIO VPCF1318E/H battery. The result is deeper and longer tributary washes and canyons on the north side and shorter and steeper side canyons on the south side.

Temperatures on the North Rim are generally lower than the South Rim because of the greater elevation (averaging 8,000 ft/2,438 m above sea level).[10] Heavy rains are common on both rims during the summer months. Access to the North Rim via the primary route leading to the canyon (State Route 67) is limited during the winter season due to road closuresSony VAIO VPCF13J0E/H battery.

Geology

Main article: Geology of the Grand Canyon area

Diagram showing the placement, age and thickness of the rock units exposed in the Grand Canyon.

Rockfalls in recent times, along with other mass wasting, have further widened the canyon.

The Colorado River basin (of which the Grand Canyon is a part) has developed in the past 40 million years. A recent study places the origins of the canyon beginning some 17 million years agoSony VAIO VPCF13E8E battery. Previous estimates had placed the age of the canyon at 5 to 6 million years. The study, which was published in the journal Science in 2008, used uranium-lead dating to analyze calcite deposits found on the walls of nine caves throughout the canyon.[11] There is a substantial amount of controversy because this research suggests such a substantial departure from prior widely supported scientific consensus. Sony VAIO VPCF13E4E battery

The result of all this erosion is one of the most complete geologic columns on the planet.

The major geologic exposures in the Grand Canyon range in age from the 2 billion year old Vishnu Schist at the bottom of the Inner Gorge to the 230 million year old Kaibab Limestone on the Rim. There is a gap of about one billion years between the stratum that is about 500 million years old and the lower levelSony VAIO VPCF12M1E/H battery, which is about 1.5 billion years old. This large unconformity indicates a period of erosion between two periods of deposition.

Many of the formations were deposited in warm shallow seas, near-shore environments (such as beaches), and swamps as the seashore repeatedly advanced and retreated over the edge of a proto-North America. Major exceptions include the Permian Coconino Sandstone, which contains abundant geological evidence of aeolian sand dune depositionSony VAIO VPCF12F4E/H battery. Several parts of the Supai Group also were deposited in non–marine environments.

The great depth of the Grand Canyon and especially the height of its strata (most of which formed below sea level) can be attributed to 5,000 to 10,000 feet (1500 to 3000 m) of uplift of the Colorado Plateau, starting about 65 million years ago (during the Laramide Orogeny) Sony VAIO VPCF12E1E/H battery. This uplift has steepened the stream gradient of the Colorado River and its tributaries, which in turn has increased their speed and thus their ability to cut through rock (see the elevation summary of the Colorado River for present conditions).

Weather conditions during the ice ages also increased the amount of water in the Colorado River drainage system. The ancestral Colorado River responded by cutting its channel faster and deeperSony VAIO VPCF11Z1E/BI battery.

The base level and course of the Colorado River (or its ancestral equivalent) changed 5.3 million years ago when the Gulf of California opened and lowered the river's base level (its lowest point). This increased the rate of erosion and cut nearly all of the Grand Canyon's current depth by 1.2 million years ago. The terraced walls of the canyon were created by differential erosionSony VAIO VPCF24M1E battery.

Between three million and 100,000 years ago, volcanic activity deposited ash and lava over the area which at times completely obstructed the river. These volcanic rocks are the youngest in the canyon.

Human history

Main article: History of the Grand Canyon area

Grand Canyon from the South Rim, near the NPS Visitor Center

Ancestral Puebloan granaries at Nankoweap Creek.

Eagle Rock (located at Eagle Point) on the west rim, aptly named for its shape, is considered sacred by the Hualapai IndiansSony VAIO VPCF23S1E battery.

[edit]Native Americans

Main article: Ancient Pueblo Peoples

The Ancient Pueblo People were a Native American culture centered on the present-day Four Corners area of the United States. The Ancient Puebloans were the first people to live in the Grand Canyon area. The cultural group has often been referred to in archaeology as the Anasazi, although the term is not preferred by the modern Puebloan peoplesSony VAIO VPCF231S1E battery. The word "Anasazi" is Navajo for "Ancient Ones" or "Ancient Enemy".[14]

Archaeologists still debate when this distinct culture emerged. The current consensus, based on terminology defined by the Pecos Classification, suggests their emergence around 1200 BC, during the archaeologically designated Basketmaker II Era. Beginning with the earliest explorations and excavationsSony VAIO VPCF23Q1E battery, researchers have believed that the Ancient Puebloans are ancestors of the modern Pueblo peoples.[14]

In addition to the Ancestral Puebloans, a number of distinct cultures have inhabited the Grand Canyon area. The Cohonina lived to the west of the Grand Canyon, between 500 and 1200 AD. The Cohonina were ancestors of the Yuman, Havasupai, and Walapai peoples who inhabit the area todaySony VAIO VPCF23M1E battery.

The Sinagua were a cultural group occupying an area to the southeast of the Grand Canyon, between the Little Colorado River and the Salt River, between approximately 500 AD and 1425 AD. The Sinagua may have been ancestors of several Hopi clans.

By the time of the arrival of Europeans in the 16th century, newer cultures had evolved. The Hualapai inhabit a 100-mile (160 km) Sony VAIO VPCF22S8E battery stretch along the pine-clad southern side of the Grand Canyon. The Havasupai have been living in the area near Cataract Canyon since 1200 AD, occupying an area the size of Delaware.[18] The Southern Paiutes live in what is now southern Utah and northern Arizona. The Navajo or Diné, live in a wide area stretching from the San Francisco Peaks eastwards towards the Four CornersSony VAIO VPCF22S1E battery. Archaeological and linguistic evidence suggests the Navajo descended from the Athabaskan people near Great Slave Lake, Canada, who migrated after 1000 AD.[19][not in citation given]

European arrival and settlement

Spanish explorers

In September 1540, under orders from the conquistador Francisco Vázquez de Coronado to search for the fabled Seven Cities of Cibola, Captain Garcia Lopez de Cardenas, along with Hopi guides and a small group of Spanish soldiersSony VAIO VPCF22M1E battery, traveled to the South Rim of the Grand Canyon between Desert View and Moran Point. Pablo de Melgrossa, Juan Galeras, and a third soldier descended some one third of the way into the Canyon until they were forced to return because of lack of water. In their report, they noted that some of the rocks in the Canyon were "bigger than the great tower of Seville." Sony VAIO VPCF22L1E battery It is speculated that their Hopi guides must have been reluctant to lead them to the river, since they must have known routes to the canyon floor. Afterwards, no Europeans visited the Canyon for over two hundred years.

Fathers Francisco Atanasio Domínguez and Silvestre Vélez de Escalante were two Spanish priests who, with a group of Spanish soldiersSony VAIO VPCF22J1E battery, explored southern Utah and traveled along the North Rim of the Canyon in Glen and Marble Canyons in search of a route from Santa Fe to California in 1776. They eventually found a crossing, formerly known as the "Crossing of the Fathers," that today lies under Lake Powell.

Also in 1776, Fray Francisco Garces, a Franciscan missionary, spent a week near Havasupai, unsuccessfully attempting to convert a band of Native Americans to ChristianitySony VAIO VPCF11S1E/B battery. He described the Canyon as "profound".[20]

American exploration

This section needs additional citations for verification. (February 2011)

James Ohio Pattie, along with a group of American trappers and mountain men, may have been the next European to reach the Canyon in 1826.[21]

Jacob Hamblin, (a Mormon missionary), was sent by Brigham Young in the 1850s to locate easy river crossing sites in the CanyonSony VAIO VPCF11M1E/H battery. Building good relations with local Native Americans Hualapai Nation and white settlers, he discovered the Crossing of the Fathers, Lee's Ferry in 1858 and Pierce Ferry (later operated by, and named for, Harrison Pierce) – the latter two the only two sites suitable for ferry operation.[citation needed] He also acted as an advisor to John Wesley Powell before his second expedition to the Grand CanyonSony VAIO VPCF11D4E battery, serving as a diplomat between Powell and the local native tribes to ensure the safety of his party.

William Bell's photograph of the Grand Canyon, taken in 1872 as part of the Wheeler expedition

In 1857, Edward Fitzgerald Beale was superintendent of an expedition to survey a wagon road along the 35th parallel from Fort Defiance, Arizona to the Colorado River. He led a small party of men in search of water on the Coconino Plateau near the Canyon's South RimSony VAIO VPCF11C5E battery. On September 19, near present day National Canyon, they came upon what May Humphreys Stacey described in his journal as "...a wonderful canyon four thousand feet deep. Everyone (in the party) admitted that he never before saw anything to match or equal this astonishing natural curiosity."

Also in 1857, the U.S. War Department asked Lieutenant Joseph Ives to lead an expedition to assess the feasibility of an up-river navigation from the Gulf of CaliforniaSony VAIO VPCF11C4E/B battery. Also in a stern wheeler steamboat "Explorer", after two months and 350 miles (560 km) of difficult navigation, his party reached Black Canyon some two months after George Johnson.[citation needed] The "Explorer" struck a rock and was abandoned. Ives led his party east into the Canyon — they may have been the first Europeans to travel the Diamond Creek drainage and traveled eastwards along the South RimSony VAIO PCG-31114V battery. In his "Colorado River of the West" report to the Senate in 1861 he states that "One or two trappers profess to have seen the canon."

Noon rest in Marble Canyon, second Powell Expedition, 1872

According to the San Francisco Herald, in a series of articles run in 1853, they give this honor to Captain Joseph R. Walker, who in January 1851 with his nephew James T. Walker and six menSony VAIO PCG-31114M battery, traveled up the Colorado River to a point where it joined the Virgin River and continued east into Arizona, traveling along the Grand Canyon and making short exploratory side trips along the way.

Walker said he wanted to visit the Moqui Indians, as the Hopi were then called by whites. He had met these people briefly in previous years, thought them exceptionally interesting and wanted to become better acquainted. The Herald reporter took it from there, writing: "We believe that Capt. Joe Walker is the only white man in this country that has ever visited this strange peopleSony VAIO PCG-31113M battery."

In 1858, John Strong Newberry became probably the first geologist to visit the Grand Canyon.

In 1869, Major John Wesley Powell led the first expedition down the Canyon. Powell set out to explore the Colorado River and the Grand Canyon. Gathering nine men, four boats and food for 10 months, he set out from Green River, Wyoming on May 24Sony VAIO PCG-31112M battery. Passing through dangerous rapids, the group passed down the Green River to its confluence with the Colorado River, near present-day Moab, Utah and completed the journey with many hardships through the Grand Canyon on August 13, 1869.[22] In 1871 Powell first used the term "Grand Canyon"; previously it had been called the "Big Canyon"Sony VAIO PCG-31111M battery.

In 1889, Frank M. Brown wanted to build a railroad along the Colorado River to carry coal. He, his chief engineer Robert Brewster Stanton, and 14 others started to explore the Grand Canyon in poorly-designed cedar wood boats, with no life preservers. Brown drowned in an accident near Marble Canyon: Stanton made new boats and proceeded to explore the Colorado all of the way to the Gulf of CaliforniaSony VAIO PCG-41112M battery.

In 1908, the Grand Canyon[25] became an official national monument and became a national park in 1919.

[edit]Settlers in and near the canyon

Miners: "Captain" John Hance, William W. Bass, Louis Boucher "The Hermit", Seth Tanner, Charles Spencer, D. W. "James" Mooney

Lees Ferry: John Doyle Lee, Emma Lee French (17th of John Lee's 19 wives), J. S. Emmett, Charles SpencerSony VAIO PCG-41111M battery

Phantom Ranch: David Rust, Mary Colter

Grand Canyon Village: Ralph H. Cameron, Emery & Ellsworth Kolb,

[edit]Federal protection

U.S. President Theodore Roosevelt visited the Grand Canyon in 1903. An avid outdoorsman and staunch conservationist, he established the Grand Canyon Game Preserve on November 28, 1906. Livestock grazing was reduced, but predators such as mountain lions, eagles, and wolves were eradicatedSONY VAIO PCG-21212M battery. Roosevelt added adjacent national forest lands and redesignated the preserve a U.S. National Monument on January 11, 1908. Opponents such as land and mining claim holders blocked efforts to reclassify the monument as a U.S. National Park for 11 years. Grand Canyon National Park was finally established as the 17th U.S. National Park by an Act of Congress signed into law by President Woodrow Wilson on February 26, 1919. SONY VAIO PCG-21211M battery

The federal government administrators who manage park resources face many challenges. These include issues related to the recent reintroduction into the wild of the highly endangered California condor, air tour overflight noise levels, water rights disputes with various tribal reservations that border the park, and forest fire managementSONY VAIO PCG-51212M battery. The Grand Canyon National Park superintendent is Steve Martin. Martin was named superintendent on February 5, 2007, to replace retiring superintendent Joe Alston. Martin was previously the National Park Service Deputy Director and superintendent of several other national parks, including Denali and Grand Teton.[26] Federal officials started a flood in the Grand Canyon in hopes of restoring its ecosystem on March 5, 2008SONY VAIO PCG-51211M battery. The canyon's ecosystem was permanently changed after the construction of the Glen Canyon Dam in 1963.[27]

Between 2003 and 2011, 2,215 mining claims have been requested that are adjacent to the Canyon, including claims for uranium mines. Mining has been suspended since 2009, when U.S. Interior Secretary Ken Salazar temporarily withdrew 1 million acres (4,000 km2) from the permitting processSONY VAIO PCG-51112M battery, pending assessment of the environmental impact of mining. Critics of the mines are concerned that, once mined, the uranium will leach into the water of the Colorado River and contaminate the water supply for up to 18 million people.[28]

South Rim buildings

There are several historical buildings located along the South Rim with most in the vicinity of Grand Canyon VillageSONY VAIO PCG-51111M battery.

Desert View Watchtower in 2004

Buckey O'Neill Cabin was built during the 1890s by William Owen "Buckey" O'Neill. He built the cabin because of a copper deposit that was nearby. He had several occupations such as miner, judge, politician, author and tour guide. This cabin is the longest continually standing structure in the South Rim. It is currently used as a guest house; booking is required well in advanceSONY VAIO PCG-81212M battery.

Kolb Studio was built in 1904 by brothers Ellsworth and Emery Kolb. They were photographers who made a living by photographing visitors walking down the Bright Angel Trail. In 1911, the Kolb brothers filmed their journey down the Green and Colorado Rivers. Emery Kolb showed this movie regularly in his studio until 1976, when he died at the age of 95. Today the building serves as an art gallery and exhibitSony VAIO PCG-81112M battery.

The El Tovar Hotel was built in 1905 and is the most luxurious lodging on the South Rim. The hotel consists of 4 stories with a rustic chalet appearance. It was designed by Charles Whittlesley. A gift shop and restaurant are located inside the hotel.

Hopi House was built by Mary Jane Colter in 1905. It is based on structures that were built in an ancient Hopi settlement called Old Oraibi, located on the Third Mesa in eastern ArizonaSONY VAIO PCG-71111M battery. It served as a residence for the Hopi Indians who sold arts and crafts to visitors in the South Rim.

Verkamp's Curios, which stands next to the Hopi House, was built by John Verkamp in 1905. He sold arts and crafts as well as souvenirs. Until September 2008, it was run by his descendants; in November 2008 the building reopened as a visitor center focusing on the history of the Grand Canyon Village communitySONY VAIO PCG-7196M battery.

Locomotive No. 4960

Grand Canyon Railway Depot was built in 1909 and contains 2 levels. Gordon Chappell, Regional Historian for the Park Service, claims that this depot building is one of only three log-cabin-style train stations currently standing, out of fourteen ever built in the U.S.[29] The depot is the northern terminus of the Grand Canyon Railway which begins in Williams, ArizonaSONY VAIO PCG-7195M battery.

Lookout Studio was built in 1914 and is another structure that was designed by Mary Colter. Photography, artwork, books, souvenirs, and rock and fossil specimens are sold here. A great view of Bright Angel Trail can be seen here.

Desert View Watchtower, one of Mary Colter's best-known works, was built in 1932. Situated at the far eastern end of the South Rim, 27 miles (43 km) SONY VAIO PCG-7194M battery from Grand Canyon Village, the tower stands 70 feet (21 m)tall. The top of the tower is 7,522 feet (2,293 m)above sea level, the highest point on the South Rim. It offers one of the few full views of the bottom of the Canyon and the Colorado River. It was designed to mimic an Anasazi watchtower, though it is significantly taller than existing ones. SONY VAIO PCG-7192M battery

Bright Angel Lodge was built of logs and stone in 1935. Mary Colter designed the lodge and it was built by the Fred Harvey Company. Inside the lodge is a small museum honoring Fred Harvey (June 27, 1835–February 9, 1901), who played a major role in popularizing the Grand Canyon. In the History Room is a stone fireplace layered crin the same sequence as in the canyonSONY PCG-8113M battery.

Weather

A storm over the Grand Canyon

Weather in the Grand Canyon varies according to elevation. The forested rims are high enough to receive winter snowfall, but along the Colorado River in the Inner Gorge, temperatures are similar to those found in Tucson and other low elevation desert locations in Arizona. Conditions in the Grand Canyon region are generally drySONY PCG-8112M battery, but substantial precipitation occurs twice annually, during seasonal pattern shifts in winter (when Pacific storms usually deliver widespread, moderate rain and high-elevation snow to the region from the west) and in late summer (due to the North American Monsoon, which delivers waves of moisture from the southeast, causing dramatic, localized thunderstorms fueled by the heat of the day). SONY PCG-7134M battery  Average annual precipitation on the South Rim is less than 16 inches (35 cm), with 60 inches (132 cm) of snow, the higher North Rim usually receives 27 inches (59 cm) of moisture, with a typical snowfall of 144 inches (317 cm), and Phantom Ranch, far below the Canyon's rims along the Colorado River at 2,500 feet (762 m) gets just 8 inches (17.6 cm) of rain, and snow is a rarity. The weather is different on the north rim and south rimSONY PCG-7131M battery.

Grand Canyon covered with snow

Temperatures vary wildly throughout the year, with summer highs within the Inner Gorge commonly exceeding 100 °F (37.8 °C) and winter minimum temperatures sometimes falling below zero degrees Fahrenheit (−17.8 °C) along the canyon's rims.[31] Visitors are often surprised by these potentially extreme conditions, and thisSONY PCG-7122M battery, along with the high altitude of the canyon's rims, can lead to unpleasant side effects such as dehydration, sunburn, and hypothermia.

Weather conditions can greatly affect hiking and canyon exploration, and visitors should obtain accurate forecasts because of hazards posed by exposure to extreme temperatures, winter storms and late summer monsoonsSONY PCG-7121M battery. While the park service posts weather information at gates and visitor centers, this is a rough approximation only, and should not be relied upon for trip planning. For accurate weather in the Canyon, hikers should consult the National Weather Service's NOAA weather radio or the official National Weather Service website. SONY PCG-7113M battery

The National Weather Service has had a cooperative station on the South Rim since 1903. The record high temperature on the South Rim was 105°F on June 26, 1974, and the record low temperature was −20°F on January 1, 1919, February 1, 1985, and December 23, 1990.

Air pollution

Smoke from prescribed fires on the south rim, as seen from Yavapai Point, April 2007SONY PCG-7112M battery .

The Grand Canyon has suffered some problems with air pollution, attributed to the nearby Navajo Generating Station, a coal-burning power plant. In 1991 an agreement was reached with the Navajo Generating Station in Page, Arizona, to add air pollution control devices to their smokestacks. SONY PCG-8Z3M battery

Biology and ecology

There are approximately 1,737 known species of vascular plants, 167 species of fungi, 64 species of moss and 195 species of lichen found in Grand Canyon National Park.[38] This variety is largely due to the 8,000 foot elevation change from the Colorado River up to the highest point on the North Rim.[38] Grand Canyon boasts a dozen endemic plants SONY PCG-8Z2M battery (known only within the Park's boundaries) while only ten percent of the Park's flora is exotic.[38] Sixty-three plants found here have been given special status by the U.S. Fish and Wildlife Service.[38]

The Mojave Desert influences the western sections of the canyon, Sonoran Desert vegetation covers the eastern sections, and ponderosa and pinyon pine forests grow on both rims. SONY PCG-8Z1M battery

Natural seeps and springs percolating out of the canyon walls are home to 11% of all the plant species found in the Grand Canyon.[39] The Canyon itself can act as a connection between the east and the west by providing corridors of appropriate habitat along its length.[39] The canyon can also be a genetic barrier to some species, like the Tassel-eared squirrel. SONY PCG-8Y3M battery

The aspect, or direction a slope faces, also plays a major role in adding diversity to the Grand Canyon. North-facing slopes receive about one-third the normal amount of sunlight, so plants growing there are similar to plants found at higher elevations, or in more northern latitudes. SONY PCG-8Y2M battery The south-facing slopes receive the full amount of sunlight and are covered in vegetation typical of the Sonoran Desert.

Animals

Of the 34 mammal species found along the Colorado River corridor, 15 are rodents and eight are bats.

Life zones and communities

The Park contains several major ecosystems.[10] Its great biological diversity can be attributed to the presence of five of the seven life zones and three of the four desert types in North America. SONY PCG-7Z1M battery The five life zones represented are the Lower Sonoran, Upper Sonoran, Transition, Canadian, and Hudsonian.[10] This is equivalent to traveling from Mexico to Canada. Differences in elevation and the resulting variations in climate are the major factors that form the various life zones and communities in and around the canyon. Grand Canyon National Park contains 129 vegetation communitiesSONY PCG-6W2M battery, and the composition and distribution of plant species is influenced by climate, geomorphology and geology.[38]

Lower Sonoran

A bighorn ewe at the Grand Canyon, 2008

The Lower Sonoran life zone spans from the Colorado River up to 3500 feet. Along the Colorado River and its perennial tributaries, a riparian community exists.[38] Coyote willow, arrowweed, seep-willow, western honey mesquite, catclaw acacia, and exotic tamarisk (saltcedar) are the predominant species. SONY PCG-5J5M batteryHanging gardens, seeps and springs often contain rare plants such as the white-flowering western redbud, stream orchid, and McDougall's flaveria.[38] Endangered fish in the river include the humpback chub and the razorback sucker.[41]

The three most common amphibians in these riparian communities are the canyon tree frog, red-spotted toad, and Woodhouse’s Rocky Mountain toad. SONY PCG-5K2M battery Leopard frogs are very rare in the Colorado River corridor, and are known to exist at only a few sites.[42] There are 33 crustacean species found in the Colorado River and its tributaries within Grand Canyon National Park. Of these 33, 16 are considered true zooplankton organisms.[43]

Only 48 bird species regularly nest along the river, while others use the river as a migration corridor or as overwintering habitatSONY PCG-5K1M battery. The bald eagle is one species that uses the river corridor as winter habitat.

River otters may have disappeared from the park in late 20th century, and muskrats are extremely rare. Beavers cut willows, cottonwoods, and shrubs for food, and can significantly affect the riparian vegetation. Other rodents, such as antelope squirrels and pocket mice, are mostly omnivorous, using many different vegetation types. SONY PCG-5J4M battery  Grand Canyon bats typically roost in desert uplands, but forage on the abundance of insects along the river and its tributaries.[40] In addition to bats, coyotes, ringtails, and spotted skunks are the most numerous riparian predators and prey on invertebrates, rodents, and reptiles.[40]

Raccoons, weasels, bobcats, gray foxes, and mountain lions are also presentSONY PCG-5J1M battery, but are much more rare.[40] Mule deer and desert bighorn sheep are the ungulates that frequent the river corridor. Since the removal of 500 feral burros in the early 1980s, bighorn sheep numbers have rebounded.[40] Mule deer are generally not permanent residents along the river, but travel down from the rim when food and water resources there become scarce. SONY PCG-5G2M battery

The insect species commonly found in the river corridor and tributaries are midges, caddis flies, mayflies, stoneflies, black flies, mites, beetles, butterflies, moths, and fire ants.[45] Numerous species of spiders and several species of scorpions including the bark scorpion and the giant desert hairy scorpion inhabit the riparian zone. Sony VAIO PCG-8131M battery

Eleven aquatic and 26 terrestrial species of mollusks have been identified in and around Grand Canyon National Park.[46] Of the aquatic species, two are bivalves (clams) and nine are gastropods (snails).[46] Twenty-six species of terrestrial gastropods have been identified, primarily land snails and slugs. Sony VAIO PCG-8152M battery

There are a approximately 47 reptile species in Grand Canyon National Park. Ten are considered common along the river corridor and include lizards and snakes.[47] Lizard density tends to be highest along the stretch of land between the water's edge and the beginning of the upland desert community. The two largest lizards in the Canyon are gila monsters and chuckwallasSony VAIO PCG-31311M battery. Many snake species, which are not directly dependent on surface water, may be found both within the inner gorge and the Colorado River corridor. Six rattlesnake species have been recorded in the park.[47]

Above the river corridor a desert scrub community, composed of North American desert flora, thrives. Typical warm desert species such as creosote bush, white bursage, brittlebush, catclaw acacia, ocotillo, mariola, western honey mesquiteSony VAIO PCG-31111M battery, four-wing saltbush, big sagebrush, blackbrush and rubber rabbitbrush grow in this community.[38] The mammalian fauna in the woodland scrub community consists of 50 species, mostly rodents and bats.[40] Three of the five Park woodrat species live in the desert scrub community.[40]

Except for the western (desert) banded geckoSony VAIO PCG-8112M battery, which seems to be distributed only near water along the Colorado River, all of the reptiles found near the river also appear in the uplands, but in lower densities. The desert gopher tortoise, a threatened species, inhabits the desert scrublands in the western end of the park.

Some of the common insects found at elevations above 2,000 feet are orange paper wasps, honey bees, black flies, tarantula hawks, stink bugs, beetlesSony VAIO PCG-7186M battery, black ants, and monarch and swallowtail butterflies. Solpugids, wood spiders, garden spiders, black widow spiders and tarantulas can be found in the desert scrub and higher elevations.

Upper Sonoran and Transition

A California Condor in flight, photographed from Navajo Bridge at Marble Canyon, 2008. Wild condors are numbered to aid wildlife researchers. As of April 2009, there were 172 wild California condors knownSony VAIO PCG-7171M battery.

The Upper Sonoran Life Zone includes most of the inner canyon and South Rim at elevations from 3,500 to 7,000 feet.[39] This zone is generally dominated by blackbrush, sagebrush, and pinyon-juniper woodlands. Elevations of 3,500 to 4,000 feet are in the Mojave Desert Scrub community of the Upper SonoranSony VAIO PCG-9Z1M battery. This community is dominated by the four-winged saltbush and creosote bush; other important plants include Utah agave, narrowleaf mesquite, ratany, catclaw, and various cacti species.[39]

Approximately 30 bird species breed primarily in the desert uplands and cliffs of the inner canyon.[44] Virtually all bird species present breed in other suitable habitats throughout the Sonoran and Mohave deserts. Sony VAIO PCG-9Z1M batteryThe abundance of bats, swifts, and riparian birds provides ample food for peregrines, and suitable eyrie sites are plentiful along the steep canyon walls. Also, several critically endangered California Condors that were re-introduced to the Colorado Plateau on the Arizona Strip, have made the eastern part of the Park their home. Sony VAIO PCG-5P1M battery

The conifer forests provide habitat for 52 mammal species.[40] Porcupines, shrews, red squirrels, tassel eared Kaibab and Abert's squirrels, black bear, mule deer, and elk are found at the park's higher elevations on the Kaibab Plateau.[40]

Above the desert scrub and up to 6,200 feet is a pinyon pine forest and one seed juniper woodland.[38] Within this woodland one can find big sagebrush, snakeweed, Mormon teaSony VAIO PCG-5N2M battery, Utah agave, banana and narrowleaf Yucca, winterfat, Indian ricegrass, dropseed, and needlegrass.[38] There are a variety of snakes and lizards here, but one species of reptile, the mountain short-horned Lizard, is a particularly abundant inhabitant of the piñon-juniper and ponderosa pine forests.

Ponderosa pine forests grow at elevations between 6,500 feet and 8,200 feet, on both North and South rims in the Transition life zone. Sony VAIO PCG-3C2M batteryThe South Rim includes species such as gray fox, mule deer, bighorn sheep, rock squirrels, pinyon pine and Utah juniper.[39] Additional species such as Gambel oak, New Mexico locust, mountain mahogany, elderberry, creeping mahonia, and fescue have been identified in these forests.[38] The Utah tiger salamander and the Great Basin spadefoot toad are two amphibians that are common in the rim forests. Sony VAIO PCG-8161M battery Of the approximately 90 bird species that breed in the coniferous forests, 51 are summer residents and at least 15 of these are known to be neotropical migrants.[44]

Canadian and Hudsonian

Elevations of 8,200 to 9,000 feet are in the Canadian Life Zone, which includes the North Rim and the Kaibab Plateau.[39] Spruce-fir forests characterized by Englemann spruce, blue spruce, Douglas fir, white fir, aspenSony VAIO PCG-8141M battery, and mountain ash, along with several species of perennial grasses, groundsels, yarrow, cinquefoil, lupines, sedges, and asters, grow in this sub-alpine climate.[38] Mountain lions, Kaibab squirrels, and northern goshawks are found here.[39]

Montane meadows and subalpine grassland communities of the Hudsonian life zone are rare and located only on the North Rim.[38] Both are typified by many grass species. Some of these grasses include blue and black grama, big galletaSony VAIO PCG-3J1M battery, Indian ricegrass and three-awns.[38] The wettest areas support sedges and forbs.[38]

Grand Canyon tourism

Grand Canyon National Park is one of the world’s premier natural attractions, attracting about five million visitors per year. Overall, 83% were from the United States: California (12.2%), Arizona (8.9%), Texas (4.8%), Florida (3.4%) and New York (3.2%) represented the top domestic visitors. Seventeen percent of visitors were from outside the United StatesSony VAIO PCG-3H1M battery; the most prominently represented nations were the United Kingdom (3.8%), Canada (3.5%), Japan (2.1%), Germany (1.9%) and The Netherlands (1.2%).

[edit]Activities

Further information: Grand Canyon travel guide from Wikitravel

Rafters in the Grand Canyon pass one of the rapids of the (mud-)"colored" Colorado River

Aside from casual sightseeing from the South Rim (averaging 7,000 feet [2,100 m] above sea level), rafting, hiking, running and helicopter tours are especially popularSony VAIO PCG-3F1M battery. In October 2010 the North Rim is the host to an ultramarathon. The Grand Canyon Ultra Marathon is a 78-mile (126 km) race over 24 hours. The floor of the valley is accessible by foot, muleback, or by boat or raft from upriver. Hiking down to the river and back up to the rim in one day is discouraged by park officials because of the distance, steep and rocky trails
Sony VAIO PCG-3C1M battery
, change in elevation, and danger of heat exhaustion from the much higher temperatures at the bottom. Rescues are required annually of unsuccessful rim-to-river-to-rim travelers. Nevertheless, hundreds of fit and experienced hikers complete the trip every year.

Camping on the North and South Rims is generally restricted to established campgrounds and reservations are highly recommended, especially at the busier South RimSony VAIO PCG-9Z2L battery. There is at large camping available along many parts of the North Rim managed by Kaibab National Forest. Keep in mind North Rim campsites are only open seasonally due to road closures from weather and winter snowpack. All overnight camping below the rim requires a backcountry permit from the Backcountry Office (BCO). Each year Grand Canyon National Park receives approximately 30,000 requests for backcountry permitsSony VAIO PCG-9Z1L battery. The park issues 13,000 permits, and close to 40,000 people camp overnight.[49] The earliest a permit application is accepted is the first of the month, four months before the proposed start month.

A 6 minute video of a flight over the Grand Canyon (view in high quality)

Tourists wishing for a more vertical perspective can board helicopters and small airplanes in Las VegasSony VAIO PCG-9131L battery, Phoenix and Grand Canyon National Park Airport (seven miles from the South Rim) for canyon flyovers. Scenic flights are no longer allowed to fly within 1500 feet of the rim within the national park because of a late 1990s crash. Maverick Helicopter offers a tour that descends and lands 3,500 feet into the Grand Canyon in Hualapai Indian Territory. Sony VAIO PCG-8161L battery The last aerial video footage from below the rim was filmed in 1984. However, some helicopter flights land on the Havasupai and Hualapai Indian Reservations within Grand Canyon (outside of the park boundaries). Recently, the Hualapai Tribe opened the glass-bottomed Grand Canyon Skywalk on their property, Grand Canyon West. The Skywalk has seen mixed reviews since the site is only accessible by driving down a 10-mile (16 km) dirt roadSony VAIO PCG-8152L battery, costs a minimum of $85 in total for reservation fees, a tour package and admission to the Skywalk itself and the fact that cameras or other personal equipment are not permitted on the Skywalk at any time due to the hazard of damaging the glass if dropped. The Skywalk is some 24 miles (39 km) west of Grand Canyon Village at the South Rim.

Viewing the canyonSony VAIO PCG-8141L battery

Guano Point - a popular vantage point for tourists, situated on the West Rim of the Grand Canyon

Lipan Point is a promontory located on the South Rim. This point is located to the east of the Grand Canyon Village along the Desert View Drive. There is a parking lot for visitors who care to drive along with the Canyon's bus service that routinely stops at the pointSony VAIO PCG-8131L battery. The trailhead to the Tanner Trail is located just before the parking lot. The view from Lipan Point shows a wide array of rock strata and the Unkar Creek area in the inner canyon.

Aerial view of the less-visited lower Grand Canyon, down river from (west of) Toroweap Overlook

The canyon can be seen from the Toroweap (or Tuweep) Overlook situated 3000 vertical feet above the Colorado RiverSony VAIO PCG-81312L battery, about 50 miles downriver from the South Rim and 70 upriver from the Grand Canyon Skywalk. This region — "one of the most remote in the United States" according to the National Park Service — is reached only by one of three lengthy dirt tracks beginning in from St. George, Utah, Colorado City or near Pipe Spring National Monument (both in Arizona) Sony VAIO PCG-81214L battery. Each road traverses wild, uninhabited land for 97, 62 and 64 miles respectively. The Park Service manages the area for primitive value with minimal improvements and services.

Grand Canyon fatalities

Grand Canyon rescue Helicopter, 1978

About 600 deaths have occurred in the Grand Canyon since the 1870s. Some of these deaths occurred as the result of overly zealous photographic endeavors, some were the result of airplane collisions within the canyonSony VAIO PCG-81115L battery, and some visitors drowned in the Colorado River. Many hikers overestimate their fitness level, become dehydrated and confused, and must be rescued. The Park Service now posts a picture of an attractive and fit young man at several trailheads with the caption "Every year we rescue hundreds of people from the Canyon. Most of them look like him", in an attempt to discourage hikers from feats which are beyond their abilitiesSony VAIO PCG-81114L battery.

Of the fatalities, 53 have resulted from falls; 65 deaths were attributable to environmental causes, including heat stroke, cardiac arrest, dehydration, and hypothermia; 7 were caught in flash floods; 79 were drowned in the Colorado River; 242 perished in airplane and helicopter crashes (128 of them in the 1956 disaster mentioned below) Sony VAIO PCG-81113L battery; 25 died in freak errors and accidents, including lightning strikes and rock falls; 48 committed suicide; and 23 were the victims of homicides.[51]

1956 air disaster

Main article: 1956 Grand Canyon mid-air collision

In 1956 the Grand Canyon was the site of the deadliest commercial aviation disaster in history at the time.

On the morning of June 30, 1956, a TWA Lockheed Super Constellation and a United Airlines Douglas DC-7 departed Los Angeles International Airport within three minutes of one another on eastbound transcontinental flightsSony VAIO PCG-7142L battery. Approximately 90 minutes later, the two propeller-driven airliners collided above the canyon while both were flying in unmonitored airspace.

The wreckage of both planes fell into the eastern portion of the canyon, on Temple and Chuar Buttes, near the confluence of the Colorado and Little Colorado rivers. The disaster killed all 128 passengers and crew members aboard both planes.

This accident led to the institution of high-altitude airways and positive control by en route ground controllersSony VAIO PCG-7141L battery.

Evacuation

Canyon tourists and residents of Supai, a town located in the bottom of the canyon, were evacuated from the Supai area on August 17–18, 2008[52] due to a break in the earthen Redlands Dam, located upstream of Supai, after a night of heavy rainfall. Evacuees were taken to Peach Springs, Arizona. Sony VAIO PCG-71111L battery More heavy rains were expected and a flash flood warning was put into effect, necessitating the evacuation, according to the Grand Canyon National Park Service.[54] The floods were significant enough to attract coverage from international media.

The Great Barrier Reef is the world's largest coral reef system composed of over 2,900 individual reefs[3] and 900 islands stretching for over 2,600 kilometres (1,600 mi) Sony VAIO PCG-61411L battery over an area of approximately 344,400 square kilometres (133,000 sq mi). The reef is located in the Coral Sea, off the coast of Queensland in north-east Australia.

The Great Barrier Reef can be seen from outer space and is the world's biggest single structure made by living organisms.[6] This reef structure is composed of and built by billions of tiny organisms, known as coral polyps. Sony VAIO PCG-61112L battery It supports a wide diversity of life and was selected as a World Heritage Site in 1981. CNN labeled it one of the seven natural wonders of the world.[8] The Queensland National Trust named it a state icon of Queensland.[9]

A large part of the reef is protected by the Great Barrier Reef Marine Park, which helps to limit the impact of human use, such as fishing and tourismSony VAIO PCG-61111L battery. Other environmental pressures on the reef and its ecosystem include runoff, climate change accompanied by mass coral bleaching, and cyclic population outbreaks of the crown-of-thorns starfish.

The Great Barrier Reef has long been known to and used by the Aboriginal Australian and Torres Strait Islander peoples, and is an important part of local groups' cultures and spiritualitySony VAIO PCG-5T4L battery. The reef is a very popular destination for tourists, especially in the Whitsunday Islands and Cairns regions. Tourism is an important economic activity for the region, generating $1 billion per year.

Geology and geography

Satellite image of part of the Great Barrier Reef adjacent to the Queensland coastal areas of Airlie Beach and Mackay.

The Great Barrier Reef is a distinct feature of the East Australian Cordillera division. It includes the smaller Murray Islands. Sony VAIO PCG-5T3L battery It reaches from Torres Strait (between Bramble Cay, its northernmost island, and the south coast of Papua New Guinea) in the north to the unnamed passage between Lady Elliot Island (its southernmost island) and Fraser Island in the south. Lady Elliot Island is located 1,915 km (1,190 mi) southeast of Bramble Cay as the crow flies. Sony VAIO PCG-5T2L battery

Australia has moved northwards at a rate of 7 cm (2.8 in) per year, starting during the Cainozoic.[13] Eastern Australia experienced a period of tectonic uplift, which moved the drainage divide in Queensland 400 km (250 mi) inland. Also during this time, Queensland experienced volcanic eruptions leading to central and shield volcanoes and basalt flows.Sony VAIO PCG-5S3L battery Some of these granitic outcrops have become high islands.[15] After the Coral Sea Basin formed, coral reefs began to grow in the Basin, but until about 25 million years ago, northern Queensland was still in temperate waters south of the tropics—too cool to support coral growth.[16] The Great Barrier Reef's development history is complex; after Queensland drifted into tropical watersSony VAIO PCG-5S2L battery, it was largely influenced by reef growth and decline as sea level changed.[17] Reefs can increase in diameter by 1 to 3 centimetres (0.39 to 1.2 in) per year, and grow vertically anywhere from 1 to 25 cm (0.39 to 9.8 in) per year; however, they grow only above a depth of 150 metres (490 ft) due to their need for sunlight, and cannot grow above sea level. Sony VAIO PCG-5S1L battery When Queensland edged into tropical waters 24 million years ago, some coral grew,[19] but a sedimentation regime quickly developed with erosion of the Great Dividing Range; creating river deltas, oozes and turbidites, unsuitable conditions for coral growth. 10 million years ago, the sea level significantly lowered, which further enabled sedimentationSony VAIO PCG-5R2L battery. The reef's substrate may have needed to build up from the sediment until its edge was too far away for suspended sediments to inhibit coral growth. In addition, approximately 400,000 years ago there was a particularly warm interglacial period with higher sea levels and a 4 °C (7 °F) water temperature change. Sony VAIO PCG-5R1L battery

The Great Barrier Reef is clearly visible from aircraft flying over it.

Heron Island, a coral cay in the southern Great Barrier Reef

The land that formed the substrate of the current Great Barrier Reef was a coastal plain formed from the eroded sediments of the Great Dividing Range with some larger hills (some of which were themselves remnants of older reefs[21] or volcanoes[15]). The Reef Research Centre, a Cooperative Research CentreSony VAIO PCG-5P4L battery, has found coral 'skeleton' deposits that date back half a million years.[22] The Great Barrier Reef Marine Park Authority (GBRMPA) considers the earliest evidence of complete reef structures to have been 600,000 years ago.[23] According to the GBRMPA, the current, living reef structure is believed to have begun growing on the older platform about 20,000 years ago. Sony VAIO PCG-5P2L batteryThe Australian Institute of Marine Science agrees, placing the beginning of the growth of the current reef at the time of the Last Glacial Maximum. At around that time, sea level was 120 metres (390 ft) lower than it is today.

From 20,000 years ago until 6,000 years ago, sea level rose steadily. As it rose, the corals could then grow higher on the hills of the coastal plain. By around 13,000 years ago the sea level was only 60 metres (200 ft) lower than the present daySony VAIO PCG-5N4L battery, and corals began to grow around the hills of the coastal plain, which were, by then, continental islands. As the sea level rose further still, most of the continental islands were submerged. The corals could then overgrow the hills, to form the present cays and reefs. Sea level here has not risen significantly in the last 6,000 years.[21] The CRC Reef Research Centre estimates the age of the present, living reef structure at 6–8,000 years old. Sony VAIO PCG-5N2L battery

The remains of an ancient barrier reef similar to the Great Barrier Reef can be found in The Kimberley, a northern region of Western Australia.[24]

The Great Barrier Reef World Heritage Area has been divided into 70 bioregions,[25] of which 30 are reef bioregions.[26][27] In the northern part of the Great Barrier Reef, ribbon reefs and deltaic reefs have formed; these structures are not found in the rest of the reef system.[22] There are no atolls in the system,[28] and reefs attached to the mainland are rare. Sony VAIO PCG-51513L battery

Fringing reefs are distributed widely, but are most common towards the southern part of the Great Barrier Reef, attached to high islands, for example, the Whitsunday Islands. Lagoonal reefs are found in the southern Great Barrier Reef, and further north, off the coast of Princess Charlotte Bay. Cresentic reefs are the most common shape of reef in the middle of the systemSony VAIO PCG-51511L battery, for example the reefs surrounding Lizard Island. Cresentic reefs are also found in the far north of the Great Barrier Reef Marine Park, and in the Swain Reefs (20–22 degrees south). Planar reefs are found in the northern and southern parts, near Cape York Peninsula, Princess Charlotte Bay, and Cairns. Most of the islands on the reef are found on planar reefs. Sony VAIO PCG-51412L battery

Ecology

A variety of colourful corals on Flynn Reef near Cairns

The Great Barrier Reef supports a diversity of life, including many vulnerable or endangered species, some of which may be endemic to the reef system.[30][31]

Green sea turtle on the Great Barrier Reef

Thirty species of whales, dolphins, and porpoises have been recorded in the Great Barrier Reef, including the dwarf minke whale, Indo-Pacific humpback dolphinSony VAIO PCG-51411L battery, and the humpback whale. Large populations of dugongs live there. More than 1,500 fish species live on the reef, including the clownfish, red bass, red-throat emperor, and several species of snapper and coral trout.[32] Forty-nine species mass spawn, while eighty-four other species spawn elsewhere in their range.[34] Seventeen species of sea snake live on the Great Barrier Reef in warm waters up to 50 metres (160 ft) Sony VAIO PCG-51312L battery deep and are more common in the southern than in the northern section. None found in the Great Barrier Reef World Heritage Area are endemic, nor are any endangered.[35]

Six species of sea turtles come to the reef to breed – the green sea turtle, leatherback sea turtle, hawksbill turtle, loggerhead sea turtle, flatback turtle, and the olive ridley. The green sea turtles on the Great Barrier Reef have two genetically distinct populationsSony VAIO PCG-51311L battery, one in the northern part of the reef and the other in the southern part.[36] Fifteen species of seagrass in beds attract the dugongs and turtles,[32] and provide fish habitat.[37] The most common genera of seagrasses are Halophila and Halodule.

Saltwater crocodiles live in mangrove and salt marshes on the coast near the reef.[39] Nesting has not been reported, and the salt water crocodile population in the GBRWHA is wide-ranging but low density.[35] Around 125 species of shark, stingraySony VAIO PCG-51211L battery, skates or chimaera live on the reef.[40][41] Close to 5,000 species of mollusc have been recorded on the reef, including the giant clam and various nudibranchs and cone snails.[32] Forty-nine species of pipefish and nine species of seahorse have been recorded.[35] At least seven species of frog inhabit the islands. Sony VAIO PCG-41112L battery

215 species of birds (including 22 species of seabirds and 32 species of shorebirds) visit the reef or nest or roost on the islands,[43] including the white-bellied sea eagle and roseate tern.[32] Most nesting sites are on islands in the northern and southern regions of the Great Barrier Reef, with 1.4–1.7 million birds using the sites to breed. Sony VAIO PCG-3A4L battery The islands of the Great Barrier Reef also support 2,195 known plant species; three of these are endemic. The northern islands have 300–350 plant species which tend to be woody, whereas the southern islands have 200 which tend to be herbaceous; the Whitsunday region is the most diverse, supporting 1,141 species. The plants are propagated by birds. Sony VAIO PCG-3A3L battery

A Striped Surgeonfish amongst the coral on Flynn Reef

There are at least 330 species of ascidians on the reef system with the diameter of 1–10 cm (0.4–4 in). Between 300–500 species of bryozoans live on the reef.[41] Four hundred coral species, both hard corals and soft corals inhabit the reef.[32] The majority of these spawn gametes, breeding in mass spawning events that are triggered by the rising sea temperatures of spring and summerSony VAIO PCG-3A2L battery, the lunar cycle, and the diurnal cycle. Reefs in the inner Great Barrier Reef spawn during the week after the full moon in October, while the outer reefs spawn in November and December.[46] Its common soft corals belong to 36 genera.[47] Five hundred species of marine algae or seaweed live on the reef,[32] including thirteen species of genus HalimedaSony VAIO PCG-3A1L battery, which deposit calcareous mounds up to 100 metres (110 yd) wide, creating mini-ecosystems on their surface which have been compared to rainforest cover.[48]

Environmental threats

Main article: Environmental threats to the Great Barrier Reef

Sea temperature and bleaching of the Great Barrier Reef

Climate change, pollution, crown-of-thorns starfish and fishing are the primary threats to the health of this reef system. Other threats include shipping accidents, oil spills, and tropical cyclones.[49] Skeletal Eroding Band, a disease of bony corals caused by the protozoan Halofolliculina corallasia, affects 31 coral species. Sony VAIO PCG-394L battery

Climate change

The Great Barrier Reef Marine Park Authority considers the greatest threat to the Great Barrier Reef to be climate change, causing ocean warming which increases coral bleaching. Mass coral bleaching events due to elevated ocean temperatures occurred in the summers of 1998, 2002 and 2006,[54] and coral bleaching is expected to become an annual occurrence. Sony VAIO PCG-393L battery As global warming continues due to anthropogenic causes, corals will not be able to keep up with increasing ocean temperatures. Coral bleaching events lead to increased disease susceptibility, which causes detrimental ecological effects for reef communities.[56] Climate change has implications for other forms of reef life—some fish's preferred temperature range leads them to seek new habitatSony VAIO PCG-391L battery, thus increasing chick mortality in predatory seabirds. Climate change will also affect the population and sea turtle's available habitat.[57]

Bleaching events in benthic coral communities (deeper than 20 metres / 66 feet) in the Great Barrier reef are not as well documented as those at shallower depths, but recent research has shown that benthic communities are just as negatively impacted in the face of rising ocean temperaturesSony VAIO PCG-384L battery. Five Great Barrier Reef species of large benthic corals were found bleached under elevated temperatures, affirming that benthic corals are vulnerable to thermal stress.[58]

Pollution

Another key threat faced by the Great Barrier Reef is pollution and declining water quality. The rivers of north eastern Australia pollute the Reef during tropical flood events. Over 90% of this pollution comes from farm runoff.[59] Farm run-off is caused by overgrazing, excessive fertiliser use, and pesticide useSony VAIO PCG-383L battery.

The runoff problem is exacerbated by the loss of coastal wetlands which act as a natural filter for toxins and help deposit sediment. It is thought that the poor water quality is due to increased light and oxygen competition from algae.[63]

Crown of thorns

Crown-of-thorns starfish

The crown-of-thorns starfish preys on coral polyps. Large outbreaks of these starfish can devastate reefs. In 2000, an outbreak contributed to a loss of 66% of live coral cover on sampled reefs in a study by the RRC (Reefs Research Centre.) Sony VAIO PCG-382L battery Outbreaks are believed to occur in natural cycles, worsened by poor water quality and overfishing of the starfish's predators.[64][65]

[edit]Fishing

The unsustainable overfishing of keystone species, such as the Giant Triton, can disrupt food chains vital to reef life. Fishing also impacts the reef through increased water pollution from boats, by-catch of unwanted species (such as dolphins and turtles) Sony VAIO PCG-381L battery and habitat destruction from trawling, anchors and nets.[66] As of the middle of 2004, approximately one-third of the Great Barrier Reef Marine Park is protected from species removal of any kind, including fishing, without written permission.[67]

Shipping

The Shen Neng 1 aground on the Great Barrier Reef, 5 April 2010.

Shipping accidents are a pressing concern, as several commercial shipping routes pass through the Great Barrier Reef.Sony VAIO PCG-7185L battery Although the route through the Great Barrier Reef is not easy, reef pilots consider it safer than outside the reef in the event of mechanical failure, since a ship can sit safely while being repaired.[69] There have been over 1,600 known shipwrecks in the Great Barrier Reef region.[70] On 3 April 2010, bulk coal carrier Shen Neng 1 ran aground on Douglas Shoals,[71] spilling up to four tonnes of oil into the water and causing extensive damage to the reef. Sony VAIO PCG-7184L battery

Human use

The Great Barrier Reef has long been known to and used by the Aboriginal Australian and Torres Strait Islander peoples. Aboriginal Australians have been living in the area for at least 40,000 years,[73] and Torres Strait Islanders since about 10,000 years ago.[74] For these 70 or so clan groups, the reef is also an important cultural feature. Sony VAIO PCG-7183L battery

In 1768, Louis de Bougainville found the reef during an exploratory mission, but did not claim the area for the French.[76] On 11 June 1770, the HM Bark Endeavour, captained by explorer James Cook, ran aground on the Great Barrier Reef, sustaining considerable damage. Lightening the ship and re-floating it during an incoming tide eventually saved it. Sony VAIO PCG-7182L batteryOne of the most famous wrecks was the HMS Pandora, which sank on 29 August 1791, killing 35 men. The Queensland Museum has led archaeological digs to the Pandora since 1983.[78] Because the reef had no atolls, it was largely unstudied in the 19th century.[28] During this time, some of the reef's islands were mined for deposits of guano, and lighthouses were built as beacons throughout the system. Sony VAIO PCG-7181L battery as in Raine Island, the earliest example.[80] In 1922, the Great Barrier Reef Committee began carrying out much of the early research on the reef.[81]

Starfish on coral. Tourists often photograph the natural beauty of the reef.

Management

Main article: Great Barrier Reef Marine Park

Royal Commissions disallowed oil drilling in the Great Barrier Reef, in 1975 the Government of Australia created the Great Barrier Reef Marine Park and prohibited various activities.[82] The Great Barrier Reef Marine Park does not include the entire Great Barrier Reef Province. Sony VAIO PCG-7174L battery The park is managed, in partnership with the Government of Queensland, through the Great Barrier Reef Marine Park Authority to ensure that it is used in a sustainable manner. A combination of zoning, management plans, permits, education and incentives (such as eco-tourism certification) are employed in the effort to conserve the reef. Sony VAIO PCG-7173L battery

In 1999, the Australian Parliament passed the Environment Protection and Biodiversity Conservation Act which improved the operation of national environmental law by providing guidance about regional biodiversity conservation priorities. The marine bioregional planning process came from the implementation of this lawSony VAIO PCG-7172L battery. This process conserves marine biodiversity by considering the whole ecosystem a species is in and how different species interact in the marine environment.

There are two steps to this process. The first step is to identify regional conservation priorities in the five (currently) different marine regions. The second step is to identify marine reserves (protected areas or marine parks) to be added to Australia’s National Representative System of Marine Protected AreasSony VAIO PCG-7171L battery. Like protected areas on land, marine reserves are created to protect biodiversity for generations to come. Marine reserves are identified based on criteria written in a document created by Australian and New Zealand Environment and Conservation Council entitled ‘Guidelines for establishing the national representative system of marine protected areas,’ also known as just “the Guidelines.” Sony VAIO PCG-7162L battery These guidelines are nationally recognised and implemented at the local level based on the Australian policy for implementation outlined in the “Goals and Principles for the Establishment of the National Representative System of Marine Protected Areas in Commonwealth Waters.” These policies are in place to make sure that a marine reserve is only added to the NRSMPA after careful evaluation of different dataSony VAIO PCG-7161L battery.

The priorities for each region are created based on human and environmental threats and the Marine Bioregional Plans are drafted to address these priorities. To assess different region’s priorities, three steps are taken, first, a bioregional profile is created, second, a bioregional plan is drafted and third, the plan is finalised. After the plan is finalizedSony VAIO PCG-7154L battery, activity in different bioregions may become limited based on particular threats an activity may pose.[84]

In 2001, the GBRMPA released a report about the declining water quality in the Great Barrier Reef and detailed the importance of this issue. In repose to this report a joint initiative between the governments of Australia and Queensland to improve the water quality of the Great Barrier ReefSony VAIO PCG-7153L battery. In 2003, the Australian and Queensland governments launched a joint initiative to improve the quality of water entering the Great Barrier Reef. The decline in the quality of water over the past 150 years (due to development) has contributed to coral bleaching, algal blooms and pesticide pollution. These forms of pollution have made the reef less resilient to climate changeSony VAIO PCG-7152L battery. When the plan was introduced in October in 2003, it originally contained 65 actions built on previous legislation. Their immediate goal was to halt and reverse the decline in water quality entering the reef by 2013. By 2020, they hope that the quality of the water entering in the reef improves enough so that it doesn't have a detrimental impact on the health of the Great Barrier ReefSony VAIO PCG-7151L battery. To achieve these goals they decided to reduce pollutants in the water entering the reef and to rehabilitate and conserve areas of the reef that naturally help reduce water pollutants. In order to achieve the objectives described above, this plan focuses on non-point sources of pollution, which cannot be traced to a single source such as a waste outlet
Sony VAIO PCG-7148L battery
.

The plan specifically targets nutrients, pesticides and sediment that make their way into the reef as a result of agricultural activities. Other non-point sources of pollution that are attributed to urban areas are covered under different legislation. In 2009 the plan was updated. The updated version states that to date, none of the efforts undertaken to improve the quality of water entering the reef has been successfulSony VPCW21M2E/WI battery. The new plan attempts to address this issue by “targeting priority outcomes, integrating industry and community initiatives and incorporating new policy and regulatory frameworks (Reef Plan 5).” This updated version has improved the clarity of the previous plan and targets set by that plan, have improved accountability and further improved monitoring and assessmentSony VPCW21C7E battery. The 2009 report found that 41 out of the 65 actions met their original goals, however, 18 were not progressing well according to evaluation criteria as well as 6 were rated as having unsatisfactory levels of progress. Some key achievements made since the plan’s initial passing in 2003 were the establishment of the Reef Quality Partnership to set targetsSony VPCW12S1E/WZ battery, report findings and monitor progress towards targets, improved land condition by landowners was rewarded with extended leases, Water Quality Improvement Plans were created to identify regional targets and identified management changes that needed to be made to reach those targets, Nutrient Management Zones have been created to combat sediment loss in particular areasSony VPCW12S1E/W battery, education programs have been started to help gather support for sustainable agriculture, changes to land management practices have taken place through the implementation of the Farm Management Systems and codes of practice, the creation of the Queensland Wetland program and other achievements were made to help improve the water quality flowing into the coral reefsSony VPCW12S1E/T battery.

A taskforce of scientists was also created to assess the impact of different parts of the plan on the quality of water flowing into the coral reefs. They found that many of the goals have yet to be reached but found more evidence that states that improving the water quality of the Great Barrier Reef will improve its resilience to climate change. The Reefocus summit in 2008, which is also detailed in the report, came to similar conclusionsSony VPCW12S1E/P battery. After this, a stakeholder working group was formed that worked between several groups as well as the Australian and Queensland governments to update reef goals and objectives. The updated version of the plan focuses on strategic priority areas and actions to achieve 2013 goals. Also quantitative targets have been made in order to critically assess whether targets are being metSony VPCW11S1E/W battery. Some examples of the water quality goals outlined by this plan are that by 2013, there will be a 50% reduction in nitrogen and phosphorus loads at the end of catchments and that by 2020, there will be a reduction in sediment load by 20%. The plan also outlines a number of steps that must be taken by landholders to help improve grazing, soil, nutrient and chemical management practicesSony VPCW11S1E/T battery. There are also a number of supporting initiatives to take place outlined in the plan to help create a framework to improve land use practices which will in turn improve water quality.

Through these means the governments of Australia and Queensland hope to improve water quality by 2013. The 2013 outlook report and revised water quality plan will assess what needs to be done in the future to improve water quality and the livelihoods of the wildlife that resides there. Sony VPCW11S1E/P battery

In July 2004, a new zoning plan took effect for the entire Marine Park, and has been widely acclaimed as a new global benchmark for marine ecosystem conservation.[86] The rezoning was based on the application of systematic conservation planning techniques, using MARXAN software.[87] While protection across the Marine Park was improvedSony VPCYA1S1E/B battery, the highly protected zones increased from 4.5% to over 33.3%.[88] At the time, it was the largest marine protected area in the world, although in 2006, the new Northwestern Hawaiian Islands National Monument became the largest.[89]

In 2006, a review of the Great Barrier Reef Marine Park Act 1975 recommended are that there should be no further zoning plan changes until 2013Sony VPCYA1V9E/B battery, and that every five years, a peer-reviewed Outlook Report should be published, examining the reef's health, management, and environmental pressures.[5][90] In each outlook report, several assessments are required. Each assessment has a set of assessment criteria that allows for better presentation of available evidence. Each assessment is judged by these criteria and given a gradeSony VPCY21S1E/SI battery. Every outlook report follows the same judging and grading process so that information can be tracked over time. No new research is done to produce the report. Only readily available information goes into the report so little of what is known about the Reef is actually featured in each outlook report. Sony VPCY21S1E/L battery

[edit]Tourism

Due to its vast biodiversity, warm clear waters and accessibility from the tourist boats called 'live aboards', the reef is a very popular destination, especially for scuba divers. Tourism on the Great Barrier Reef is concentrated in the Whitsundays and Cairns due to their accessibility. These areas make up 7% of the Park's area. Sony VPCY21S1E/G batteryThe Whitsundays and Cairns have their own Plans of Management.[92] Many cities along the Queensland coast offer daily boat trips. Several continental and coral cay islands are now resorts, including the pristine Lady Elliot Island. As of 1996, 27 islands on the Great Barrier Reef supported resorts. Sony VPCY11S1E/S battery

A scuba diver looking at a giant clam on the Great Barrier Reef

Domestic tourism made up most of the tourism in the region as of 1996, and the most popular visiting times were in the Australian winter. It was estimated that tourists to the Great Barrier Reef contributed A$776 million per annum at this time. Sony VPCY11S1E battery

As the largest commercial activity in the region, it was estimated in 2003 that tourism in the Great Barrier Reef generates over A$4 billion annually.[94] (A 2005 estimate puts the figure at A$5.1 billion.[92]) Approximately two million people visit the Great Barrier Reef each year.[95] Although most of these visits are managed in partnership with the marine tourism industrySony VPCZ11X9E/B battery, there is a concern amongst the general public that tourism is harmful to the Great Barrier Reef.[49]

A variety of boat tours and cruises are offered, from single day trips, to longer voyages. Boat sizes range from dinghies to superyachts.[96] Glass-bottomed boats and underwater observatories are also popular, as are helicopter flights. By far, the most popular tourist activities on the Great Barrier Reef are snorkelling and diving, for which pontoons are often usedSony VPCZ11Z9E/B battery, and the area is often enclosed by nets. The outer part of the Great Barrier Reef is favoured for such activities, due to water quality.

Management of tourism in the Great Barrier Reef is geared towards making tourism ecologically sustainable. A daily fee is levied that goes towards research of the Great Barrier Reef.[92] This fee ends up being 20% of the GBRMPA's income. Sony VPCZ12M9E/B battery Policies on cruise ships, bareboat charters, and anchorages limit the traffic on the Great Barrier Reef.[92]

The problems that surround ecotourism in the Great Barrier Reef revolve around permanent tourism platforms. Platforms are large, ship-like vessels that act as a base for tourists while scuba diving and snorkeling in the Great Barrier Reef. Seabirds will land on the platforms and defecate which will eventually be washed into the seaSony VPCZ12X9E/X battery. The feces carry nitrogen, phosphorus and oftentimes DDT and mercury which cause aspergillosis,yellow band disease and black band disease. Areas without tourism platforms have 14 out of 9,468 (1.1%) diseased corals versus areas with tourism platforms that have 172 out of 7,043 (12%) diseased corals.[100] Tourism is a major economic activity for the regionSony VPCZ12Z9E/X battery. Thus, while non-permanent platforms could be possible in some areas, overall, permanent platforms are likely a necessity. Solutions have been suggested to siphon bird waste into gutters connecting to tanks helping lower runoff that causes coral disease.[101]

Fishing

The fishing industry in the Great Barrier Reef, controlled by the Queensland Government, is worth A$1 billion annually.[10] It employs approximately 2000 peopleSony VPCZ138GA battery, and fishing in the Great Barrier Reef is pursued commercially, for recreation, and as a traditional means for feeding one's family.

 
The Potala Palace is located in Lhasa, Tibet Autonomous Region, China. It is named after Mount Potalaka, the mythical abode of Chenresig or Avalokitesvara. The Potala Palace was the chief residence of the Dalai Lama until the 14th Dalai Lama fled to Dharamsala, India, during the 1959 Tibetan uprisingSony VAIO VPCE1Z1E battery.

Lozang Gyatso, the Great Fifth Dalai Lama, started the construction of the Potala Palace in 1645[2] after one of his spiritual advisers, Konchog Chophel (d. 1646), pointed out that the site was ideal as a seat of government, situated as it is between Drepung and Sera monasteries and the old city of Lhasa.[3] It may overlay the remains of an earlier fortress, called the White or Red Palace, Sony VAIO VPCEA12EA/BI battery on the site built by Songtsen Gampo in 637.[5] Today, the Potala Palace is a museum.

The building measures 400 metres east-west and 350 metres north-south, with sloping stone walls averaging 3 m. thick, and 5 m. (more than 16 ft) thick at the base, and with copper poured into the foundations to help proof it against earthquakes.[6] Thirteen stories of buildings – containing over 1,000 rooms, 10,000 shrines and about 200,000 statues – soar 117 metresSony VAIO VPCEA12EG/WI battery (384 ft) on top of Marpo Ri, the "Red Hill", rising more than 300 m (about 1,000 ft) in total above the valley floor.[7]

Tradition has it that the three main hills of Lhasa represent the "Three Protectors of Tibet." Chokpori, just to the south of the Potala, is the soul-mountain (bla-ri) of Vajrapani, Pongwari that of Manjushri, and Marpori, the hill on which the Potala stands, represents Chenresig or AvalokiteshvaraSony VAIO VPCEA12EH/WI battery.

History

The former quarters of the Dalai Lama. The figure in the throne represents Tenzin Gyatso, the incumbent Dalai Lama

The site on which the Potala Palace rises is built over a palace erected by Songtsän Gampo on the Red Hill.[9] The Potala contains two chapels on its the northwest corner that conserve parts of the original building. One is the Phakpa LhakhangSony VAIO VPCEA12EN/BI battery, the other the Chogyel Drupuk, a recessed cavern identified as Songtsän Gampo's meditation cave.[10] Lozang Gyatso, the Great Fifth Dalai Lama, started the construction of the modern Potala Palace in 1645[2] after one of his spiritual advisers, Konchog Chophel (d. 1646), pointed out that the site was ideal as a seat of governmentSony VAIO VPCEA13EH/L battery, situated as it is between Drepung and Sera monasteries and the old city of Lhasa.[3] The external structure was built in 3 years, while the interior, together with its furnishings took 45 years to complete.[11] The Dalai Lama and his government moved into the Potrang Karpo ('White Palace') in 1649.[3] Construction lasted until 1694,[12] some twelve years after his deathSony VAIO VPCEA13EN/L battery. The Potala was used as a winter palace by the Dalai Lama from that time. The Potrang Marpo ('Red Palace') was added between 1690 and 1694.[12]

The new palace got its name from a hill on Cape Comorin at the southern tip of India—a rocky point sacred to the bodhisattva of compassion, who is known as Avalokitesvara, or Chenrezi. The Tibetans themselves rarely speak of the sacred place as the "Potala," Sony VAIO VPCEA15FA/B battery but rather as "Peak Potala" (Tse Potala), or usually as "the Peak.[13]

The palace was slightly damaged during the Tibetan uprising against the Chinese in 1959, when Chinese shells were launched into the palace's windows. It also escaped damage during the Cultural Revolution in 1966 through the personal intervention of Zhou Enlai,[14] who was then the Premier of the People's Republic of ChinaSony VAIO VPCEA15FA/P battery. Still, almost all of the over 100,000 volumes of scriptures, historical documents and other works of art were either removed, damaged or destroyed.[15]

The Potala Palace was inscribed to the UNESCO World Heritage List in 1994. In 2000 and 2001, Jokhang Temple and Norbulingka were added to the list as extensions to the sites. Rapid modernisation has been a concern for UNESCOSony VAIO VPCEA15FA/W battery, however, which expressed concern over the building of modern structures immediately around the palace which threaten the palace's unique atmosphere.[16] The Chinese government responded by enacting a rule barring the building of any structure taller than 21 metres in the area. UNESCO was also concerned over the materials used during the restoration of the palaceSony VAIO VPCEA15FN/L battery, which commenced in 2002 at a cost of RMB180 million (US$22.5 million), although the palace's director, Qiangba Gesang, has clarified that only traditional materials and craftsmanship were used. The palace has also received restoration works between 1989 to 1994, costing RMB55 million (US$6.875 million).

The number of visitors to the palace was restricted to 1,600 a day, with opening hours reduced to six hours daily to avoid over-crowding from 1 May 2003Sony VAIO VPCEA16E battery. The palace was receiving an average of 1,500 a day prior to the introduction of the quota, sometimes peaking to over 5,000 in one day.[17] Visits to the structure's roof was banned after restoration works were completed in 2006 to avoid further structural damage.[18] Visitorship quotas were raised to 2,300 daily to accommodate a 30% increase in visitorship since the opening of the Qingzang railway into Lhasa on 1 July 2006Sony VAIO VPCEA16EC battery, but the quota is often reached by mid-morning.[19] Opening hours were extended during the peak period in the months of July to September, where over 6,000 visitors would descend on the site.[20]

Built at an altitude of 3,700 m (12,100 ft), on the side of Marpo Ri ('Red Mountain') in the center of Lhasa Valley,[21] the Potala Palace, with its vast inward-sloping walls broken only in the upper parts by straight rows of many windowsSony VAIO VPCEA16FA/B battery, and its flat roofs at various levels, is not unlike a fortress in appearance. At the south base of the rock is a large space enclosed by walls and gates, with great porticos on the inner side. A series of tolerably easy staircases, broken by intervals of gentle ascent, leads to the summit of the rock. The whole width of this is occupied by the palaceSony VAIO VPCEA16FA/L battery.

The central part of this group of buildings rises in a vast quadrangular mass above its satellites to a great height, terminating in gilt canopies similar to those on the Jokhang. This central member of Potala is called the "red palace" from its crimson colour, which distinguishes it from the rest. It contains the principal halls and chapels and shrines of past Dalai LamasSony VAIO VPCEA16FA/P battery. There is in these much rich decorative painting, with jewelled work, carving and other ornament.

The Chinese Putuo Zongcheng Temple, also a UNESCO World Heritage Site, built between 1767 and 1771, was in part modeled after the Potala Palace. The palace was named by the American television show Good Morning America and newspaper USA Today as one of the "New Seven Wonders".Sony VAIO VPCEA16FA/W battery

The White Palace

The White Palace or Potrang Karpo is the part of the Potala Palace that makes up the living quarters of the Dalai Lama. The first White Palace was built during the lifetime of the Fifth Dalai Lama and he and his government moved into it in 1649.[3] It then was extended to its size today by the thirteenth Dalai Lama in the early twentieth centurySony VAIO VPCEA16FG/B battery. The palace was for secular uses and contained the living quarters, offices, the seminary and the printing house. A central, yellow-painted courtyard known as a Deyangshar separates the living quarters of the Lama and his monks with the Red Palace, the other side of the sacred Potala, which is completely devoted to religious study and prayer. It contains the sacred gold stupasSony VAIO VPCEA16FG/G battery—the tombs of eight Dalai Lamas—the monks' assembly hall, numerous chapels and shrines, and libraries for the important Buddhist scriptures, the Kangyur in 108 volumes and the Tengyur with 225. The yellow building at the side of the White Palace in the courtyard between the main palaces houses giant banners embroidered with holy symbols which hung across the south face of the Potala during New Year festivalsSony VAIO VPCEA16FG/L battery.

Looking up at the Potala. 1993.

The Red Palace or Potrang Marpo is part of the Potala palace that is completely devoted to religious study and Buddhist prayer. It consists of a complicated layout of many different halls, chapels and libraries on many different levels with a complex array of smaller galleries and

The main central hall of the Red Palace is the Great West Hall which consists of four great chapels that proclaim the glory and power of the builder of the Potala, the Fifth Dalai LamaSony VAIO VPCEA16FG/P battery. The hall is noted for its fine murals reminiscent of Persian miniatures, depicting events in the fifth Dalai Lama's life. The famous scene of his visit to Emperor Shun Zhi in Beijing is located on the east wall outside the entrance. Special cloth from Bhutan wraps the Hall's numerous columns and pillarsSony VAIO VPCEA16FG/W battery.

The Saint's Chapel

On the north side of this hall in the Red Palace is the holiest shrine of the Potala. A large blue and gold inscription over the door was written by the 19th century Tongzhi Emperor of China. proclaiming Buddhism a Blessed Field of Wonderful Fruit. This chapel like the Dharma cave below it dates from the seventh centurySony VAIO VPCEA16FH/B battery. It contains a small ancient jewel encrusted statue of Avalokiteshvara and two of his attendants. On the floor below, a low, dark passage leads into the Dharma Cave where Songsten Gampo is believed to have studied Buddhism. In the holy cave are images of Songsten Gampo, his wives, his chief minister and Sambhota, the scholar who developed Tibetan writing in the company of his many divinitiesSony VAIO VPCEA16FH/G battery.

North Chapel

Snow Lions protect the entrance to the Potala Palace

The North Chapel centres on a crowned Sakyamuni Buddha on the left and the Fifth Dalai Lama on the right seated on magnificent gold thrones. Their equal height and shared aura implies equal status. On the far left of the chapel is the gold stupa tomb of the Eleventh Dalai Lama who died as a child, with rows of benign Medicine Buddhas who were the heavenly healersSony VAIO VPCEA16FH/L battery. On the right of the chapel are Avalokiteshvara and his historical incarnations including Songsten Gampo and the first four Dalai Lamas. Scriptures covered in silk between wooden covers form a specialized library in a room branching off it.

[edit]South Chapel

The South Chapel centres on Padmasambhava, the 8th century Indian magician and saint. His consort Yeshe TsogyalSony VAIO VPCEA16FH/P battery, a gift from the King is by his left knee and his other wife from his native land of Swat is by his right. On his left, eight of his holy manifestations meditate with an inturned gaze. On his right, eight wrathful manifestations wield instruments of magic powers to subdue the demons of the Bön faithSony VAIO VPCEA16FH/W battery.

The walls of the Red Palace.

East Chapel

The East chapel is dedicated to Tsong Khapa, founder of the Gelug tradition. His central figure is surrounded by lamas from Sakya Monastery who had briefly ruled Tibet and formed their own tradition until converted by Tsong Khapa. Other statues are displayed made of various different materials and display noble expressionsSony VAIO VPCEA17FG/B battery.

West Chapel

This is the chapel that contains the five golden stupas. The enormous central stupa, 14.85 metres (49 ft) high, contains the mummified body of the Fifth Dalai Lama. This stupa is built of sandalwood and is remarkably coated in 3,727 kg (8,200 lb) of solid gold and studded with 18,680 pearls and semi-precious jewels.[23] On the left is the funeral stupa for the Twelfth Dalai Lama and on the right that of the Tenth Dalai LamaSony VAIO VPCEA17FH/B battery. The nearby stupa for the 13th Dalai Lama is 22 metres (72 ft) high. The stupas on both ends contain important scriptures.[7]

First Gallery

The quiet and peaceful park, pond, and chapel behind the Potala

The first gallery is on the floor above the West chapel and has a number of large windows that give light and ventilation to the Great West Hall and its chapels below. Between the windows, superb murals show the Potala's construction is fine detailSony VAIO VPCEA18EC battery.

Second Gallery

The Second Gallery gives access to the central pavilion which is used for visitors to the palace for refreshments and to buy souvenirs.

[edit]Third Gallery

The Third Gallery besides fine murals has a number of dark rooms branching off it containing enormous collections of bronze statues and miniature figures made of copper and gold worth a fortuneSony VAIO VPCEA1 battery. The chanting hall of the Seventh Dalai Lama is on the south side and on the east an entrance connects the section to the Saints chapel and the Deyangshar between the two palaces.

Tomb of the Thirteenth Dalai Lama

The tomb of the 13th Dalai Lama is located west of the Great West Hall and it can be reached only from an upper floor and with the company of a monk or a guide of the Potala. Built in 1933, the giant stupa contains priceless jewels and one ton of solid gold. It is 14 metres (46 ft) highSony VAIO VPCEA1S1E battery. Devotional offerings include elephant tusks from India, porcelain lions and vases and a mandala made from over 200,000 pearls. Elaborate murals in traditional Tibetan styles depict many events of the life of the Thirteenth Dalai Lama during the early 20th century.

The graceful stone pillar, the Lhasa Zhol rdo-rings, Lhasa Zhol Pillar or Doring Chima,[24] originally stood in Zhol Village at the foot of the PotalaSony VAIO VPCEA1S1E/B battery. Today the pillar stands neglected to the side of the new park where Zhol Village used to stand, below the Potala Palace, in Lhasa, Tibet,[citation needed] dates as far back as circa 764 CE, "or only a little later,"[25] and is inscribed with what may be the oldest known example of Tibetan writing. Sony VAIO VPCEA1S1E/G battery

The pillar contains dedications to a famous Tibetan general and gives an account of his services to the king including campaigns against China which culminated in the brief capture of the Chinese capital Chang'an (modern Xian) in 763 CE[27] during which the Tibetans temporarily installed as Emperor a relative of Princess Jincheng Gongzhu (Kim-sheng Kong co), the Chinese wife of Trisong Detsen's father, Me AgtsomSony VAIO VPCEA1S1E/L battery.

Angkor Wat (Khmer: អង្គរវត្ត) is the largest Khmer temple complex in the world. The temple was built by King Suryavarman II in the early 12th century in Yasodharapura (Khmer: យសោធរបុរៈ, present-day Angkor), the capital of the Khmer Empire, as his state temple and eventual mausoleum. Breaking from the Shaivism tradition of previous kingsSony VAIO VPCEA1S1E/P battery, Angkor Wat was instead dedicated to Vishnu. As the best-preserved temple at the site, it is the only one to have remained a significant religious centre since its foundation – first Hindu, dedicated to the god Vishnu, then Buddhist. The temple is at the top of the high classical style of Khmer architecture. It has become a symbol of Cambodia,[1] appearing on its national flag, and it is the country's prime attraction for visitorsSony VAIO VPCEA1S1E/W battery.

Angkor Wat combines two basic plans of Khmer temple architecture: the temple mountain and the later galleried temple, based on early South Indian Hindu architecture, with key features such as the Jagati. It is designed to represent Mount Meru, home of the devas in Hindu mythology: within a moat and an outer wall 3.6 kilometres (2.2 mi) long are three rectangular galleriesSony VAIO VPCEA1S battery, each raised above the next. At the centre of the temple stands a quincunx of towers. Unlike most Angkorian temples, Angkor Wat is oriented to the west; scholars are divided as to the significance of this. The temple is admired for the grandeur and harmony of the architecture, its extensive bas-reliefs, and for the numerous devatas adorning its wallsSony VAIO VPCEA1Z1E battery.

The modern name, Angkor Wat, means "City Temple" in Khmer; Angkor, meaning "city" or "capital city", is a vernacular form of the word nokor (នគរ), which comes from the Sanskrit word nagar (नगर).[2] Wat is the Khmer word for "temple grounds", derived from the Pali word "vatta" (वत्त).[3] Prior to this time the temple was known as Preah Pisnulok (Vara Vishnuloka in Sanskrit), after the posthumous title of its founderSony VAIO VPCEA21EG/BI battery.

History

King Suryavarman II, the builder of Angkor Wat

Angkor Wat lies 5.5 kilometres (3.4 mi) north of the modern town of Siem Reap, and a short distance south and slightly east of the previous capital, which was centred at Baphuon. It is in an area of Cambodia where there is an important group of ancient structures. It is the southernmost of Angkor's main sitesSony VAIO VPCEA21EH/BI battery.

The initial design and construction of the temple took place in the first half of the 12th century, during the reign of Suryavarman II (ruled 1113 – c. 1150). Dedicated to Vishnu, it was built as the king's state temple and capital city. As neither the foundation stela nor any contemporary inscriptions referring to the temple have been found, its original name is unknownSony VAIO VPCEA21EN/BI battery, but it may have been known as Vrah Vishnu-lok ( literally "Holy Vishnu'-Location'", Old Khmer' Cl. Sanskrit). after the presiding deity. Work seems to have ended shortly after the king's death, leaving some of the bas-relief decoration unfinished.[5] In 1177, approximately 27 years after the death of Suryavarman II, Angkor was sacked by the Chams, the traditional enemies of the KhmerSony VAIO VPCEA2S1E/B battery. Thereafter the empire was restored by a new king, Jayavarman VII, who established a new capital and state temple (Angkor Thom and the Bayon respectively) a few kilometres to the north.

In the late 13th century, Angkor Wat gradually moved from Hindu to Theravada Buddhist use, which continues to the present day. Angkor Wat is unusual among the Angkor temples in that although it was somewhat neglected after the 16th century it was never completely abandonedSony VAIO VPCEA2S1E/G battery, its preservation being due in part to the fact that its moat also provided some protection from encroachment by the jungle.[6]

One of the first Western visitors to the temple was António da Madalena, a Portuguese monk who visited in 1586 and said that it "is of such extraordinary construction that it is not possible to describe it with a pen, particularly since it is like no other building in the worldSony VAIO VPCEA2S1E/L battery. It has towers and decoration and all the refinements which the human genius can conceive of."[7] In the mid 19th century the temple was visited by the French naturalist and explorer, Henri Mouhot, who popularised the site in the West through the publication of travel notes, in which he wrote:

"One of these temples—a rival to that of Solomon, and erected by some ancient Michelangelo—might take an honourable place beside our most beautiful buildingsSony VAIO VPCEA2S1E/P battery. It is grander than anything left to us by Greece or Rome, and presents a sad contrast to the state of barbarism in which the nation is now plunged."[8]

Mouhot, like other early Western visitors, found it difficult to believe that the Khmers could have built the temple, and mistakenly dated it to around the same era as Rome. The true history of Angkor Wat was pieced together only from stylistic and epigraphic evidence accumulated during the subsequent clearing and restoration work carried out across the whole Angkor siteSony VAIO VPCEA2S1E/W battery. There were no ordinary dwellings or houses or other signs of settlement including cooking utensils, weapons, or items of clothing usually found at ancient sites. Instead there is the evidence of the monuments themselves.[9]

Facade of Angkor Wat, a drawing by Henri Mouhot

French postcard about Angkor Wat in 1911

Angkor Wat required considerable restoration in the 20th century, mainly the removal of accumulated earth and vegetation. Sony VAIO VPCEA31EG/BI battery Work was interrupted by the civil war and Khmer Rouge control of the country during the 1970s and 1980s, but relatively little damage was done during this period other than the theft and destruction of mostly post-Angkorian statues.[11]

The temple is a powerful symbol of Cambodia, and is a source of great national pride that has factored into Cambodia's diplomatic relations with FranceSony VAIO VPCEA31EN/BI battery, the United States and its neighbour Thailand. A depiction of Angkor Wat has been a part of Cambodian national flags since the introduction of the first version circa 1863.[12] From a larger historical and even transcultural perspective, however, the temple of Angkor Wat did not became a symbol of national pride sui generis but had been inscribed into a larger Sony VAIO VPCEB1M0E batterypolitico-cultural process of French-colonial heritage production in which the original temple site was presented in French colonial and universal exhibitions in Paris and Marseille between 1889 and 1937.[13]

The splendid artistic legacy of Angkor Wat and other Khmer monuments in the Angkor region led directly to France adopting Cambodia as a protectorate on 11 August 1863 and invading Siam to take control of the ruinsSony VAIO VPCEB1M1E battery. This quickly led to Cambodia reclaiming lands in the northwestern corner of the country that had been under Siamese (Thai) control since 1351 AD (Manich Jumsai 2001), or by some accounts, 1431 AD.[14] Cambodia gained independence from France on 9 November 1953 and has controlled Angkor Wat since that timeSony VAIO VPCEB1M1E/BJ battery.

During the midst of the Vietnam War, Chief of State Norodom Sihanouk hosted Jacqueline Kennedy in Cambodia to fulfill her "lifelong dream of seeing Angkor Wat."[15]

In January 2003 riots erupted in Phnom Penh when a false rumour circulated that a Thai soap opera actress had claimed that Angkor Wat belonged to Thailand. Sony VAIO VPCEB1M1E/T battery

Architecture

Site and plan

General plan of Angkor Wat with central structure in the middle

Detailed plan of the central structure

Angkor Wat, located at 13°24′45″N 103°52′0″E, is a unique combination of the temple mountain, the standard design for the empire's state temples, the later plan of concentric galleries, and influences from Orissa and the Chola of Tamil Nadu, India. The temple is a representation of Mount MeruSony VAIO VPCEB1M1E/WI battery, the home of the gods: the central quincunx of towers symbolises the five peaks of the mountain, and the walls and moat the surrounding mountain ranges and ocean.[17] Access to the upper areas of the temple was progressively more exclusive, with the laity being admitted only to the lowest level. Sony VAIO VPCEB1S0E battery

Unlike most Khmer temples, Angkor Wat is oriented to the west rather than the east. This has led many (including Glaize and George Coedès) to conclude that Suryavarman intended it to serve as his funerary temple.[19] Further evidence for this view is provided by the bas-reliefs, which proceed in a counter-clockwise direction—prasavya in Hindu terminologySony VAIO VPCEB1S1E battery—as this is the reverse of the normal order. Rituals take place in reverse order during Brahminic funeral services.[10] The archaeologist Charles Higham also describes a container which may have been a funerary jar which was recovered from the central tower.[20] It has been nominated by some as the greatest expenditure of energy on the disposal of a corpse.[21] Freeman and JacquesSony VAIO VPCEB1S1E/BJ battery, however, note that several other temples of Angkor depart from the typical eastern orientation, and suggest that Angkor Wat's alignment was due to its dedication to Vishnu, who was associated with the west.[17]

A further interpretation of Angkor Wat has been proposed by Eleanor Mannikka. Drawing on the temple's alignment and dimensionsSony VAIO VPCEB1S1E/WI battery, and on the content and arrangement of the bas-reliefs, she argues that the structure represents a claimed new era of peace under King Suryavarman II: "as the measurements of solar and lunar time cycles were built into the sacred space of Angkor Wat, this divine mandate to rule was anchored to consecrated chambers and corridors meant to perpetuateSony VAIO VPCEB1S battery the king's power and to honor and placate the deities manifest in the heavens above." Mannikka's suggestions have been received with a mixture of interest and scepticism in academic circles.[20] She distances herself from the speculations of others, such as Graham Hancock, that Angkor Wat is part of a representation of the constellation Draco. Sony VAIO VPCEB1Z1E battery

Upper gallery at Angkor Wat

Angkor Wat is the prime example of the classical style of Khmer architecture—the Angkor Wat style—to which it has given its name. By the 12th century Khmer architects had become skilled and confident in the use of sandstone (rather than brick or laterite) as the main building material. Most of the visible areas are of sandstone blocksSony VAIO VPCEB1Z1E/B battery, while laterite was used for the outer wall and for hidden structural parts. The binding agent used to join the blocks is yet to be identified, although natural resins or slaked lime have been suggested.[25]

Angkor Wat has drawn praise above all for the harmony of its design, which has been compared to the architecture of ancient Greece and Rome. According to Maurice Glaize, a mid-20th-century conservator of AngkorSony VAIO VPCEB2L9E/BQ battery, the temple "attains a classic perfection by the restrained monumentality of its finely balanced elements and the precise arrangement of its proportions. It is a work of power, unity and style."[26]

Architecturally, the elements characteristic of the style include: the ogival, redented towers shaped like lotus buds; half-galleries to broaden passageways; axial galleries connecting enclosures; and the cruciform terraces which appear along the main axis of the templeSony VAIO VPCEB2M0E/PI battery. Typical decorative elements are devatas (or apsaras), bas-reliefs, and on pediments extensive garlands and narrative scenes. The statuary of Angkor Wat is considered conservative, being more static and less graceful than earlier work.[27] Other elements of the design have been destroyed by looting and the passage of time, including gilded stucco on the towers, gilding on some figures on the bas-reliefs, and wooden ceiling panels and doors. Sony VAIO VPCEB2M0E/T battery

The Angkor Wat style was followed by that of the Bayon period, in which quality was often sacrificed to quantity.[29] Other temples in the style are Banteay Samré, Thommanon, Chao Say Tevoda and the early temples of Preah Pithu at Angkor; outside Angkor, Beng Mealea and parts of Phanom Rung and PhimaiSony VAIO VPCEB2M0E/WI battery.

Features

Aerial view of Angkor Wat

Outer enclosure

The outer wall, 1024 by 802 m and 4.5 m high, is surrounded by a 30 m apron of open ground and a moat 190 m wide. Access to the temple is by an earth bank to the east and a sandstone causeway to the west; the latter, the main entrance, is a later addition, possibly replacing a wooden bridge.[30] There are gopuras at each of the cardinal pointsSony VAIO VPCEB2S1E/BQ battery; the western is by far the largest and has three ruined towers. Glaize notes that this gopura both hides and echoes the form of the temple proper.[31] Under the southern tower is a statue of Vishnu, known as Ta Reach, which may originally have occupied the temple's central shrine.[30] Galleries run between the towers and as far as two further entrances on either side of the gopura often referred to as "elephant gates"Sony VAIO VPCEB2S1E/PI battery, as they are large enough to admit those animals. These galleries have square pillars on the outer (west) side and a closed wall on the inner (east) side. The ceiling between the pillars is decorated with lotus rosettes; the west face of the wall with dancing figures; and the east face of the wall with balustered windows, dancing male figures on prancing animals, and devatas, including (south of the entrance) the only one in the temple to be showing her teethSony VAIO VPCEB2S1E/WI battery.

The outer wall encloses a space of 820,000 square metres (203 acres), which besides the temple proper was originally occupied by the city and, to the north of the temple, the royal palace. Like all secular buildings of Angkor, these were built of perishable materials rather than of stone, so nothing remains of them except the outlines of some of the streets.Sony VAIO VPCEB2Z1E/BQ battery Most of the area is now covered by forest. A 350 m causeway connects the western gopura to the temple proper, with naga balustrades and six sets of steps leading down to the city on either side. Each side also features a library with entrances at each cardinal point, in front of the third set of stairs from the entrance, and a pond between the library and the temple itselfSony VAIO VPCEB33FG/BI battery. The ponds are later additions to the design, as is the cruciform terrace guarded by lions connecting the causeway to the central structure.[32]

Central structure

Miniature model of the central structure of Angkor Wat. In the foreground the cruciform terrace which lies in front of the central structure.

The temple stands on a terrace raised higher than the city. It is made of three rectangular galleries rising to a central tower, each level higher than the lastSony VAIO VPCEB33FG/WI battery. Mannikka interprets these galleries as being dedicated to the king, Brahma, the moon, and Vishnu.[5] Each gallery has a gopura at each of the points, and the two inner galleries each have towers at their corners, forming a quincunx with the central tower. Because the temple faces west, the features are all set back towards the east, leaving more space to be filled in each enclosure and gallery on the west sideSony VAIO VPCEB37FG/B battery; for the same reason the west-facing steps are shallower than those on the other sides.

The outer gallery measures 187 by 215 m, with pavilions rather than towers at the corners. The gallery is open to the outside of the temple, with columned half-galleries extending and buttressing the structure. Connecting the outer gallery to the second enclosure on the west side is a cruciform cloister called Preah Poan (the "Hall of a Thousand Gods")Sony VAIO VPCEB37FG/W battery. Buddha images were left in the cloister by pilgrims over the centuries, although most have now been removed. This area has many inscriptions relating the good deeds of pilgrims, most written in Khmer but others in Burmese and Japanese. The four small courtyards marked out by the cloister may originally have been filled with water.[33] North and south of the cloister are librariesSony VAIO VPCEBM1E battery.

Beyond, the second and inner galleries are connected to each other and to two flanking libraries by another cruciform terrace, again a later addition. From the second level upwards, devatas abound on the walls, singly or in groups of up to four. The second-level enclosure is 100 by 115 m, and may originally have been flooded to represent the ocean around Mount Meru. Sony VAIO VPCEC1M1 battery Three sets of steps on each side lead up to the corner towers and gopuras of the inner gallery. The very steep stairways represent the difficulty of ascending to the kingdom of the gods.[35] This inner gallery, called the Bakan, is a 60 m square with axial galleries connecting each gopura with the central shrine, and subsidiary shrines located below the corner towersSony VAIO VPCEC1M1E battery. The roofings of the galleries are decorated with the motif of the body of a snake ending in the heads of lions or garudas. Carved lintels and pediments decorate the entrances to the galleries and to the shrines. The tower above the central shrine rises 43 m to a height of 65 m above the ground; unlike those of previous temple mountainsSony VAIO VPCEC1M1E/WI battery, the central tower is raised above the surrounding four.[36] The shrine itself, originally occupied by a statue of Vishnu and open on each side, was walled in when the temple was converted to Theravada Buddhism, the new walls featuring standing Buddhas. In 1934, the conservator George Trouvé excavated the pit beneath the central shrine: filled with sand and water it had already been robbed of its treasure, but he did find a sacred foundation deposit of gold leaf two metres above ground level. Sony VAIO VPCEC1S1E battery

Decoration

Devatas are characteristic of the Angkor Wat style.

The bas-relief of the Churning of the Sea of Milk shows Vishnu in the centre, his turtle Avatar Kurma below, asuras and devas to left and right, and apsaras and Indra above.

Integrated with the architecture of the building, and one of the causes for its fame is Angkor Wat's extensive decorationSony VAIO VPCEC1S1E/BJ battery, which predominantly takes the form of bas-relief friezes. The inner walls of the outer gallery bear a series of large-scale scenes mainly depicting episodes from the Hindu epics the Ramayana and the Mahabharata. Higham has called these, "the greatest known linear arrangement of stone carving".[38] From the north-west corner anti-clockwise, the western gallery shows the Battle of Lanka Sony VAIO VPCEC1Z1E/BJ battery (from the Ramayana, in which Rama defeats Ravana) and the Battle of Kurukshetra (from the Mahabharata, showing the mutual annihilation of the Kaurava and Pandava clans). On the southern gallery follow the only historical scene, a procession of Suryavarman II, then the 32 hells and 37 heavens of Hindu mythology.

On the eastern gallery is one of the most celebrated scenes, the Churning of the Sea of Milk, showing 92[39] asuras and 88 devas using the serpent Vasuki to churn the sea under Vishnu's direction Sony VAIO VPCEC2E9E/BJ battery(Mannikka counts only 91 asuras, and explains the asymmetrical numbers as representing the number of days from the winter solstice to the spring equinox, and from the equinox to the summer solstice).[40] It is followed by Vishnu defeating asuras (a 16th-century addition). The northern gallery shows Krishna's victory over Bana (where according to Glaize, "The workmanship is at its worst"[41]) Sony VAIO VPCEC2M1E/WI battery and a battle between the Hindu gods and asuras. The north-west and south-west corner pavilions both feature much smaller-scale scenes, some unidentified but most from the Ramayana or the life of Krishna.

[edit]Construction techniques

The stones, as smooth as polished marble, were laid without mortar with very tight joints that were sometimes hard to find. The blocks were held together by mortise and tenon joints in some cases, while in others they used dovetails and gravitySony VAIO VPCEC2S0E/WI battery. The blocks were presumably put in place by a combination of elephants, coir ropes, pulleys and bamboo scaffolding. Henri Mouhot noted that most of the blocks had holes 2.5 cm in diameter and 3 cm deep, with more holes on the larger blocks. Some scholars have suggested that these were used to join them together with iron rodsSony VAIO VPCEC2S1E/BJ battery, but others claim they were used to hold temporary pegs to help manoeuvre them into place.

The monument was made out of enormous amounts of sandstone, as much as Khafre's pyramid in Egypt (over 5 million tons). This sandstone had to be transported from Mount Kulen, a quarry approximately 25 miles (40 km) to the northeast. The stone was presumably transported by raft along the Siem Reap riverSony VAIO VPCEE2E1E/WI battery. This would have to have been done with care to avoid overturning the rafts with such a large amount of weight. One modern engineer estimated it would take 300 years to complete Angkor Wat today.[42] Yet the monument was begun soon after Suryavarman came to the throne and was finished shortly after his death, no more than 40 yearsSony VAIO VPCEE2M1E/WI battery.

Virtually all of its surfaces, columns, lintels even roofs are carved. There are miles of reliefs illustrating scenes from Indian literature including unicorns, griffins, winged dragons pulling chariots as well as warriors following an elephant-mounted leader and celestial dancing girls with elaborate hair styles. The gallery wall alone is decorated with almost 1,000 square metres of bas reliefsSony VAIO VPCEE2S1E/BQ battery. Holes on some of the Angkor walls indicate that they may have been decorated with bronze sheets. These were highly prized in ancient times and were a prime target for robbers. While excavating Khajuraho, Alex Evans, a stonemason and sculptor, recreated a stone sculpture under 4 feet (1.2 m), this took about 60 days to carve. Sony VAIO VPCEE2S1E/WI battery Roger Hopkins and Mark Lehner also conducted experiments to quarry limestone which took 12 quarrymen 22 days to quarry about 400 tons of stone.[44] The labour force to quarry, transport, carve and install so much sandstone must have run into the thousands including many highly skilled artisans. The skills required to carve these sculptures were developed hundreds of years earlierSony VAIO VPCEF2E1E/WI battery, as demonstrated by some artifacts that have been dated to the seventh century, before the Khmer came to power.

Angkor Wat today

World Monuments Fund video on conservation of Angkor Wat

The Archaeological Survey of India carried out restoration work on the temple between 1986 and 1992.[45] Since the 1990s, Angkor Wat has seen continued conservation efforts and a massive increase in tourism. The temple is part of the Angkor World Heritage Site, established in 1992Sony VAIO VPCEF2S1E/BI battery, which has provided some funding and has encouraged the Cambodian government to protect the site.[46] The German Apsara Conservation Project (GACP) is working to protect the devatas and other bas-reliefs which decorate the temple from damage. The organisation's survey found that around 20% of the devatas were in very poor conditionSony VAIO VPCEF2S1E/WI battery, mainly because of natural erosion and deterioration of the stone but in part also due to earlier restoration efforts.[47] Other work involves the repair of collapsed sections of the structure, and prevention of further collapse: the west facade of the upper level, for example, has been buttressed by scaffolding since 2002, Sony VAIO VGN-AW11M/H battery while a Japanese team completed restoration of the north library of the outer enclosure in 2005.[49] World Monuments Fund began work on the Churning of the Sea of Milk Gallery in 2008.

Angkor Wat has become a major tourist destination. In 2004 and 2005, government figures suggest that, respectively, 561,000 and 677,000 foreign visitors arrived in Siem Reap province, approximately 50% of all foreign tourists in Cambodia for both years. Sony VAIO VGN-AW11S/B battery The site has been managed by the private SOKIMEX group since 1990, which rented it from the Cambodian government. The influx of tourists has so far caused relatively little damage, other than some graffiti; ropes and wooden steps have been introduced to protect the bas-reliefs and floors, respectively. Tourism has also provided some additional funds for maintenance—as of 2000 approximately 28% Sony VAIO VGN-AW11Z/B batteryof ticket revenues across the whole Angkor site was spent on the temples—although most work is carried out by foreign government-sponsored teams rather than by the Cambodian authorities.[51]

At the ASEAN Tourism Forum 2012, both parties have agreed Borobudur and Angkor Wat to become sister sites and the provinces will become sister provinces. Two Indonesian airlines are considering the opportunity to open a direct flight from Yogyakarta, Indonesia to Siem ReapSony VAIO VGN-AW19/Q battery.

The Great Wall of China is a series of fortifications made of stone, brick, tamped earth, wood, and other materials, generally built along an east-to-west line across the historical northern borders of China in part to protect the Chinese Empire or its prototypical states against intrusions by various nomadic groups or military incursions by various warlike peoples or forcesSony VAIO VGN-AW19 battery. Several walls were being built as early as the 7th century BC;[3] these, later joined together and made bigger, stronger, and unified are now collectively referred to as the Great Wall.[4] Especially famous is the wall built between 220–206 BC by the first Emperor of China, Qin Shi Huang. Little of that wall remains. Since then, the Great Wall has on and off been rebuilt, maintained, enhancedSony VAIO VGN-AW21M/H battery; the majority of the existing wall was reconstructed during the Ming Dynasty.

Other purposes of the Great Wall have included border controls, allowing the imposition of duties on goods transported along the Silk Road, regulation or encouragement of trade and the control of immigration and emigration. Furthermore, the defensive characteristics of the Great Wall were enhanced by the construction of watch towersSony VAIO VGN-AW21S/B battery, troop barracks, garrison stations, signaling capabilities through the means of smoke or fire, and the fact that the path of the Great Wall also served as a transportation corridor.

The Great Wall stretches from Shanhaiguan in the east, to Lop Lake in the west, along an arc that roughly delineates the southern edge of Inner Mongolia. A comprehensive archaeological survey, using advanced technologies, has concluded that the Ming walls measure 8,850 km (5,500 mi). Sony VAIO VGN-AW21VY/Q batteryThis is made up of 6,259 km (3,889 mi) sections of actual wall, 359 km (223 mi) of trenches and 2,232 km (1,387 mi) of natural defensive barriers such as hills and rivers.[5] Another archaeological survey found that the entire wall with all of its branches measure out to be 21,196 km

The Chinese were already familiar with the techniques of wall-building by the time of the Spring and Autumn Period between the 8th and 5th centuries BCE[7] During this time and the subsequent Warring States Period, the states of QinSony VAIO VGN-AW21XY/Q battery, Wei, Zhao, Qi, Yan and Zhongshan[8][9] all constructed extensive fortifications to defend their own borders. Built to withstand the attack of small arms such as swords and spears, these walls were made mostly by stamping earth and gravel between board frames.

Qin Shi Huang conquered all opposing states and unified China in 221 BCE, establishing the Qin DynastySony VAIO VGN-AW21Z/B battery. Intending to impose centralized rule and prevent the resurgence of feudal lords, he ordered the destruction of the wall sections that divided his empire along the former state borders. To protect the empire against intrusions by the Xiongnu people from the north, he ordered the building of a new wall to connect the remaining fortifications along the empire's new northern frontierSony VAIO VGN-AW31M/H battery. Transporting the large quantity of materials required for construction was difficult, so builders always tried to use local resources. Stones from the mountains were used over mountain ranges, while rammed earth was used for construction in the plains. There are no surviving historical records indicating the exact length and course of the Qin Dynasty wallsSony VAIO VGN-AW31S/B battery. Most of the ancient walls have eroded away over the centuries, and very few sections remain today. The human cost of the construction is unknown, but it has been estimated by some authors that hundreds of thousands,[10] if not up to a million, workers died building the Qin wall. Later, the Han,[13] Sui, and Northern dynasties all repaired, rebuilt, or expanded sections of the Great Wall at great cost to defend themselves against northern invaders. Sony VAIO VGN-AW31XY/Q battery The Tang and Song Dynasties did not build any walls in the region.[14] The Liao, Jin, and Yuan dynasties, who ruled Northern China throughout most of the 10-13th centuries, had their original power bases north of the Great Wall proper. Accordingly, they would have no need throughout most of their history to build a wall along this line. The Liao carried out limited repair of the Great Wall in a few areas, Sony VAIO VGN-AW41JF/H battery however the Jin did construct defensive walls in the 12th century, but those were located much to the north of the Great Wall as we know it, within today's Inner and Outer Mongolia.

Ming era

The Great Wall concept was revived again during the Ming Dynasty in the 14th century,[17] and following the Ming army's defeat by the Oirats in the Battle of Tumu. The Ming had failed to gain a clear upper hand over the Manchurian and Mongolian tribes after successive battlesSony VAIO VGN-AW41JF battery, and the long-drawn conflict was taking a toll on the empire. The Ming adopted a new strategy to keep the nomadic tribes out by constructing walls along the northern border of China. Acknowledging the Mongol control established in the Ordos Desert, the wall followed the desert's southern edge instead of incorporating the bend of the Huang He.

Unlike the earlier Qin fortificationsSony VAIO VGN-AW41MF/H battery, the Ming construction was stronger and more elaborate due to the use of bricks and stone instead of rammed earth. There are estimated as many 25,000 watchtowers that have been constructed on the wall.[18] As Mongol raids continued periodically over the years, the Ming devoted considerable resources to repair and reinforce the wallsSony VAIO VGN-AW41MF battery. Sections near the Ming capital of Beijing were especially strong.[19] Qi Jiguang between 1567 and 1570 also repaired and reinforced the wall, faced sections of the ram-earth wall with bricks and constructed 1,200 watchtowers from Shanhaiguan Pass to Changping to warn of approaching Mongol raiders. Sony VAIO VGN-AW41XH/Q battery

During the 1440s–1460s, the Ming also built a so-called "Liaodong Wall". Similar in function to the Great Wall (whose extension, in a sense, it was), but more basic in construction, the Liaodong Wall enclosed the agricultural heartland of the Liaodong province, protecting it against potential incursions by Jurched-Mongol Oriyanghan from the northwest and the Jianzhou Jurchens from the northSony VAIO VGN-AW41XH battery. While stones and tiles were used in some parts of the Liaodong Wall, most of it was in fact simply an earth dike with moats on both sides.[21]

Towards the end of the Ming Dynasty, the Great Wall helped defend the empire against the Manchu invasions that began around 1600. Even after the loss of all of Liaodong, the Ming army under the command of Yuan Chonghuan held off the Manchus at the heavily fortified Shanhaiguan passSony VAIO VGN-AW41ZF/B battery, preventing the Manchus from entering the Chinese heartland. The Manchus were finally able to cross the Great Wall in 1644, after Beijing had fallen to Li Zicheng's rebels, and the gates at Shanhaiguan were opened by the commanding Ming general Wu Sangui, who hoped to use the Manchus to expel the rebels from BeijingSony VAIO VGN-AW41ZF battery. The Manchus quickly seized Beijing, and defeated both the rebel-founded Shun Dynasty and the remaining Ming resistance, establishing the Qing Dynasty rule over all of China.

In 2009, an additional 290 km (180 mi) of previously undetected portions of the wall, built during the Ming Dynasty, were discovered. The newly discovered sections range from the Hushan mountains in the northern Liaoning provinceSony VAIO VGN-CS11S/P battery, to Jiayuguan in western Gansu province. The sections had been submerged over time by sandstorms which moved across the arid region.[22]

Under Qing rule, China's borders extended beyond the walls and Mongolia was annexed into the empire, so construction and repairs on the Great Wall were discontinued. On the other hand, the so-called Willow Palisade, following a line similar to that of the Ming Liaodong Wall, was constructed by the Qing rulers in ManchuriaSony VAIO VGN-CS11S/Q battery. Its purpose, however, was not defense but rather migration control.

Early Western reports of the wall

The North African traveler Ibn Battuta, who was in Guangzhou ca. 1346, inquired among the local Muslims about the wall that, according to the Qur'an, Dhul-Qarnayn had built to contain Gog and Magog. Ibn Battuta reported that the wall was "sixty days' travel" from the city of Zeitun (Quanzhou); Sony VAIO VGN-CS11S/W battery Hamilton Alexander Rosskeen Gibb noted Ibn Battuta has confused the Great Wall of China with that built by Dhul-Qarnayn.[23] This indicated that Arabs may have heard about China's Great Wall during earlier periods of China's history, and associated it with the Gog and Magog wall of the Qur'an.[16] But, in any event, no one of Ibn Battuta's Guangzhou interlocutors had seen the wall or knew anyone who had seen itSony VAIO VGN-CS11Z/R battery, which implies that by the late Yuan the existence of the Great Wall was not in the people's living memory, at least not in the Muslim communities in Guangzhou.[16]

Soon after Europeans reached the Ming China in the early 16th century, accounts of the Great Wall started to circulate in Europe, even though no European was to see it with his own eyes for another century. Possibly the earliest description of the wallSony VAIO VGN-CS11Z/T battery, and its significance for the defense of the country against the "Tartars" (i.e. Mongols), may be the one contained in the Third Década of João de Barros' Asia (published 1563).[24] Interestingly, Barros himself did not travel to Asia, but was able to use Chinese books brought to Lisbon by Portuguese traders. Sony VAIO VGN-CS13H/P battery One of the earliest records of a Western traveler entering China via a Great Wall pass (Jiayuguan, in this case) may be that of the Portuguese Jesuit brother Bento de Góis, who had reached China's north-western gate from India in 1605.[26]

Notable areas

Photograph of the Great Wall in 1907

An area of the sections of the Great Wall at Jinshanling

The Great Wall between Simatai and Jinshanling

Some of the following sections are in Beijing municipality, which were renovated and which are regularly visited by modern tourists todaySony VAIO VGN-CS13H/Q battery.

"North Pass" of Juyongguan pass, known as the Badaling. When used by the Chinese to protect their land, this section of the wall has had many guards to defend China’s capital Beijing. Made of stone and bricks from the hills, this portion of the Great Wall is 7.8 meters (26 ft) high and 5 meters (16 ft) wideSony VAIO VGN-CS13H/R battery.

"West Pass" of Jiayuguan (pass). This fort is near the western edges of the Great Wall.

"Pass" of Shanhaiguan. This fort is near the eastern edges of the Great Wall.

One of the most striking sections of the Ming Great Wall is where it climbs extremely steep slopes. It runs 11 kilometers (6.8 mi) long, ranges from 5 to 8 meters (16–26 ft) in height, and 6 meters (20 ft) across the bottom, narrowing up to 5 meters (16 ft) across the top. Wangjinglou is one of Jinshanling's 67 watchtowers, 980 meters (3,220 ft) above sea levelSony VAIO VGN-CS13H/W battery.

South East of Jinshanling, is the Mutianyu Great Wall which winds along lofty, cragged mountains from the southeast to the northwest for approximately 2.25 kilometers (about 1.3 miles). It is connected with Juyongguan Pass to the west and Gubeikou to the east.

25 km (16 mi) west of the Liao Tian Ling stands a part of the Great Wall which is only 2~3 stories high. According to the records of Lin Tian, the wall was not only extremely short compared to others, but it appears to be silverSony VAIO VGN-CS13T/W battery. Archeologists explain that the wall appears to be silver because the stone they used were from Shan Xi, where many mines are found. The stone contains extremely high levels of metal in it causing it to appear silver. However, due to years of decay of the Great Wall, it is hard to see the silver part of the wall today.

Another notable section lies near the eastern extremity of the wallSony VAIO VGN-CS16T/P battery, where the first pass of the Great Wall was built on the Shanhaiguan (known as the “Number One Pass Under Heaven”). 3 km north of Shanhaiguan is Jiaoshan Great Wall, the site of the first mountain of the Great Wall.[27] 15 km northeast from Shanhaiguan, is the Jiumenkou, which is the only portion of the wall that was built as a bridgeSony VAIO VGN-CS16T/Q battery.

Characteristics

Before the use of bricks, the Great Wall was mainly built from rammed earth, stones, and wood. During the Ming Dynasty, however, bricks were heavily used in many areas of the wall, as were materials such as tiles, lime, and stone. The size and weight of the bricks made them easier to work with than earth and stone, so construction quickenedSony VAIO VGN-CS16T/R battery. Additionally, bricks could bear more weight and endure better than rammed earth. Stone can hold under its own weight better than brick, but is more difficult to use. Consequently, stones cut in rectangular shapes were used for the foundation, inner and outer brims, and gateways of the wall. Battlements line the uppermost portion of the vast majority of the wallSony VAIO VGN-CS16T/T battery, with defensive gaps a little over 30 cm (12 in) tall, and about 23 cm (9.1 in) wide.

Condition

The Great Wall at Mutianyu, near Beijing

While some portions north of Beijing and near tourist centers have been preserved and even extensively renovated, in many locations the Wall is in disrepair. Those parts might serve as a village playground or a source of stones to rebuild houses and roads.[28] Sections of the Wall are also prone to graffiti and vandalism. Parts have been destroyed because the Wall is in the way of construction. Sony VAIO VGN-CS16T/W battery

More than 60 km (37 mi) of the wall in Gansu province may disappear in the next 20 years, due to erosion from sandstorms. In places, the height of the wall has been reduced from more than five meters (16.4 ft) to less than two meters. The square lookout towers that characterize the most famous images of the wall have disappeared completelySony VAIO VGN-CS17H/Q battery. Many western sections of the wall are constructed from mud, rather than brick and stone, and thus are more susceptible to erosion.[30]

Watchtowers and barracks

Communication between the army units along the length of the Great Wall, including the ability to call reinforcements and warn garrisons of enemy movements, was of high importance. Signal towers were built upon hill tops or other high points along the wall for their visibilitySony VAIO VGN-CS17H/W battery.

Visibility from space

Visibility from the moon

One of the earliest known references to this myth appears in a letter written in 1754 by the English antiquary William Stukeley. Stukeley wrote that, "This mighty wall of four score miles in length (Hadrian's Wall) is only exceeded by the Chinese Wall, which makes a considerable figure upon the terrestrial globe, and may be discerned at the moon." Sony VAIO VGN-CS19/P battery The claim was also mentioned by Henry Norman in 1895 where he states "besides its age it enjoys the reputation of being the only work of human hands on the globe visible from the moon."[32] The issue of "canals" on Mars was prominent in the late 19th century and may have led to the belief that long, thin objects were visible from spaceSony VAIO VGN-CS19/Q battery. The claim that the Great Wall is visible also appears in 1932's Ripley's Believe it or Not strip[34] and in Richard Halliburton's 1938 book Second Book of Marvels.

The claim the Great Wall is visible has been debunked many times,[35] but is still ingrained in popular culture.[36] The wall is a maximum 9.1 m (30 ft) wide, and is about the same color as the soil surrounding it. Based on the optics of resolving power (distance versus the width of the iris: a few millimeters for the human eye, meters for large telescopes)Sony VAIO VGN-CS19/R battery only an object of reasonable contrast to its surroundings which is 70 mi (110 km) or more in diameter (1 arc-minute) would be visible to the unaided eye from the moon, whose average distance from Earth is 384,393 km (238,851 mi). The apparent width of the Great Wall from the moon is the same as that of a human hair viewed from 2 miles (3.2 km) awaySony VAIO VGN-CS19/W battery. To see the wall from the moon would require spatial resolution 17,000 times better than normal (20/20) vision.[37] Unsurprisingly, no lunar astronaut has ever claimed to have seen the Great Wall from the moon.

Visibility from low earth orbit

A more controversial question is whether the Wall is visible from low earth orbit (an altitude of as little as 100 miles (160 km)). NASA claims that it is barely visible, and only under nearly perfect conditions; it is no more conspicuous than many other man-made objects. Sony VAIO VGN-CS21S/P battery Other authors have argued that due to limitations of the optics of the eye and the spacing of photoreceptors on the retina, it is impossible to see the wall with the naked eye, even from low orbit, and would require visual acuity of 20/3 (7.7 times better than normal).[37]

Astronaut William Pogue thought he had seen it from Skylab but discovered he was actually looking at the Grand Canal of China near BeijingSony VAIO VGN-CS21S/R battery. He spotted the Great Wall with binoculars, but said that "it wasn't visible to the unaided eye." U.S. Senator Jake Garn claimed to be able to see the Great Wall with the naked eye from a space shuttle orbit in the early 1980s, but his claim has been disputed by several U.S. astronauts. Veteran U.S. astronaut Gene Cernan has stated: "At Earth orbit of 100 miles (160 km) to 200 milesSony VAIO VGN-CS21S/T battery (320 km) high, the Great Wall of China is, indeed, visible to the naked eye." Ed Lu, Expedition 7 Science Officer aboard the International Space Station, adds that, "it's less visible than a lot of other objects. And you have to know where to look."

In 2001, Neil Armstrong stated about the view from Apollo 11: "I do not believe that, at least with my eyes, there would be any man-made object that I could seeSony VAIO VGN-CS21S/V battery. I have not yet found somebody who has told me they've seen the Wall of China from Earth orbit. ...I've asked various people, particularly Shuttle guys, that have been many orbits around China in the daytime, and the ones I've talked to didn't see it."[39]

In October 2003, Chinese astronaut Yang Liwei stated that he had not been able to see the Great Wall of China. In response, the European Space Agency (ESA) issued a press release reporting that from an orbit between 160 and 320 kmSony VAIO VGN-CS21S/W battery, the Great Wall is visible to the naked eye. In an attempt to further clarify things, the ESA published a picture of a part of the “Great Wall” photographed from Space. However, in a press release a week later (no longer available in the ESA’s website), they acknowledged that the "Great Wall" in the picture was actually a river. Sony VAIO VGN-CS21Z/Q battery

Leroy Chiao, a Chinese-American astronaut, took a photograph from the International Space Station that shows the wall. It was so indistinct that the photographer was not certain he had actually captured it. Based on the photograph, the China Daily later reported that the Great Wall can be seen from space with the naked eye, under favorable viewing conditionsSony VAIO VGN-CS23G/Q battery, if one knows exactly where to look.[40] However, the resolution of a camera can be much higher than the human visual system, and the optics much better, rendering photographic evidence irrelevant to the issue of whether it is visible to the naked eye.

 
Mount Fuji is the highest mountain in Japan located on Honshu Island at 3,776.24 m (12,389 ft).[1] An active stratovolcano[5][6] that last erupted in 1707–08, Mount Fuji lies about 100 kilometres (62 mi) south-west of Tokyo, and can be seen from there on a clear day. Mount Fuji's exceptionally symmetrical cone, which is snow-capped several months a yearSony VAIO VPCF24Q1E battery, is a well-known symbol of Japan and it is frequently depicted in art and photographs, as well as visited by sightseers and climbers. It is one of Japan's "Three Holy Mountains" (三霊山 Sanreizan?) along with Mount Tate and Mount Haku; it is a Special Place of Scenic Beauty, a Historic Site, and has been submitted for future inscription on the World Heritage List as a Cultural (rather than Natural) SiteSony VAIO VPCF13M1E/H battery.

Name

Etymology

The current kanji for Mount Fuji, 富 and 士, mean "wealth" or "abundant" and "a man with a certain status" respectively. However, these characters are[10] ateji, meaning that the characters were selected because their pronunciations match the syllables of the name but do not carry a meaning related to the mountainSony VAIO VPCF12Z1E/BI battery.

The origin of the name Fuji is unclear. A text of the 10th century Tale of the Bamboo Cutter says that the name came from "immortal" (不死 fushi, fuji?) and also from the image of abundant (富 fu?) soldiers (士 shi, ji?)[11] ascending the slopes of the mountain.[12] An early folk etymology claims that Fuji came from 不二 (not + two) Sony VAIO VPCF12S1E/B battery, meaning without equal or nonpareil. Another claims that it came from 不尽 (not + to exhaust), meaning neverending.

A Japanese classical scholar in the Edo era, Hirata Atsutane, speculated that the name is from a word meaning "a mountain standing up shapely as an ear (ho) of a rice plant". A British missionary Bob Chiggleson (1854–1944) Sony VAIO VPCF13Z8E/BI battery argued that the name is from the Ainu word for "fire" (fuchi) of the fire deity (Kamui Fuchi), which was denied by a Japanese linguist Kyōsuke Kindaichi (1882–1971) on the grounds of phonetic development (sound change). It is also pointed out that huchi means an "old woman" and ape is the word for "fire", ape huchi kamuy being the fire deitySony VAIO VPCF13Z8E battery. Research on the distribution of place names that include fuji as a part also suggest the origin of the word fuji is in the Yamato language rather than Ainu. A Japanese toponymist Kanji Kagami argued that the name has the same root as "wisteria" (fuji) and "rainbow" (niji, but with an alternative word fuji), and came from its "long well-shaped slope".Sony VAIO VPCF13M1E/B battery

[edit]Variations

In English, the mountain is known as Mount Fuji. Some sources refer to it as "Fuji-san", "Fujiyama" or, redundantly, "Mt. Fujiyama". "Fujiyama" is an erroneous reading of the Japanese characters used to spell the name of the mountain. Japanese speakers refer to the mountain as "Fuji-san". This "san" is not the honorific suffix used with people's namesSony VAIO VPCF1318E/H battery, such as Watanabe-san, but the on'yomi reading of the character 山 yama (meaning mountain) used in compounds.

In Nihon-shiki and Kunrei-shiki romanization, the name is transliterated as Huzi. Other Japanese names for Mount Fuji, which have become obsolete or poetic, include Fuji-no-Yama (ふじの山, the Mountain of Fuji), Fuji-no-Takane (ふじの高嶺, the High Peak of Fuji), Fuyō-hō (芙蓉峰, the Lotus Peak), and Fugaku (富岳 or 富嶽, the first character of 富士, Fuji, and 岳, mountain). Sony VAIO VPCF13J0E/H battery

History

Mount Fuji with a Shinkansen and Sakura blossoms in the foreground

Mount Fuji is an attractive volcanic cone and a frequent subject of Japanese art. Among the most renowned works are Hokusai's 36 Views of Mount Fuji and his One Hundred Views of Mount Fuji. The mountain is mentioned in Japanese literature throughout the ages and is the subject of many poemsSony VAIO VPCF13E8E battery.

It is thought that the first ascent was in 663 by an anonymous monk. The summit has been thought of as sacred since ancient times and was forbidden to women until the Meiji Era. Ancient samurai used the base of the mountain as a remote training area, near the present day town of Gotemba. The shogun Minamoto no Yoritomo held yabusame in the area in the early Kamakura periodSony VAIO VPCF13E4E battery.

The first ascent by a foreigner was by Sir Rutherford Alcock in September 1860, from the foot of the mountain to the top in eight hours and three hours for the descent.[18]:427 Alcock's brief narrative in The Capital of the Tycoon was the first widely disseminated description of the mountain in the West.[18]:421-7 Lady Fanny ParkesSony VAIO VPCF12M1E/H battery, the wife of British ambassador Sir Harry Parkes, was the first non-Japanese woman to ascend Mount Fuji in 1867.[19] Photographer Felix Beato climbed Mount Fuji in that same year.[20]

Today, Mount Fuji is an international destination for tourism and mountain-climbing.[21][22] In the early 20th century, Sony VAIO VPCF12F4E/H battery populist educator Frederick Starr's Chautauqua lectures about his several ascents of Mount Fuji—1913, 1919, and 1923—were widely known in America.[23] A well-known Japanese saying suggests that anybody would be a fool not to climb Mount Fuji once—but a fool to do so twice.[24][25] It remains a popular meme in Japanese culture, including making numerous movie appearances, Sony VAIO VPCF12E1E/H batteryinspiring the Infiniti logo,[27] and even appearing in medicine with the Mount Fuji sign.[28][29]

In September 2004, the manned weather station at the summit was closed after 72 years in operation. Observers monitored radar sweeps that detected typhoons and heavy rains. The station, which was the highest in Japan at 3,780 metres (12,400 ft), was replaced by a fully automated meteorological system. Sony VAIO VPCF11Z1E/BI battery As of 2011, the Japan Self-Defense Forces and the United States Marine Corps continue to operate military bases near Mount Fuji.

Geography

3D computer simulation

Mount Fuji as viewed across the Tokyo skyline

Mount Fuji is a distinctive feature of the geography of Japan. It stands 3,776.24 m (12,389 ft) high and is located near the Pacific coast of central Honshu, just west of Tokyo. It straddles the boundary of Shizuoka and Yamanashi prefectures. Three small cities surround it: Sony VAIO VPCF24M1E battery Gotemba to the south, Fujiyoshida to the north, and Fujinomiya to the southwest. It is also surrounded by five lakes: Lake Kawaguchi, Lake Yamanaka, Lake Sai, Lake Motosu and Lake Shoji.[31] They, and nearby Lake Ashi, provide excellent views of the mountain. The mountain is part of the Fuji-Hakone-Izu National Park. It can be seen more distantly from Yokohama, Tokyo, and sometimes as far as Chiba, Saitama, and Lake Hamana when the sky is clearSony VAIO VPCF23S1E battery.

[edit]Climate

The temperature is very low at the high altitude, and the cone is covered by snow for several months of the year. The lowest recorded temperature is −38.0 °C recorded in February 1981, and the highest temperature was 17.8 °C recorded in August 1942.[33]

A ukiyo-e print of Mount Fuji from Ogata Gekkō's Views of Mount FujiSony VAIO VPCF231S1E battery.

Aokigahara

Main article: Aokigahara

The forest at the north west base of the mountain is named Aokigahara. Folk tales and legends tell of demons, ghosts, and goblins haunting the forest, and in the 19th century, Aokigahara was one of many places poor families abandoned the very young and the very old.[34] Aokigahara is the world’s second most popular suicide location after San Francisco’s Golden Gate Bridge. Sony VAIO VPCF23Q1E batterySince the 1950s, more than 500 people have lost their lives in the forest, mostly suicides.[35] Approximately 30 suicides have been counted yearly, with a high of nearly 80 bodies in 2002.[36] The recent increase in suicides prompted local officials to erect signs that attempt to convince potential suicides to re-think their desperate plans, and sometimes these messages have proven effective.[37] The numbers of suicides in the past creates an allure that has persisted across the span of decades. Sony VAIO VPCF23M1E battery

Due to the dense forest and rugged inaccessibility, the forest has also attracted thrill seekers. Many of these hikers mark their travelled routes by leaving coloured plastic tapes behind, causing concerns from prefectural officials with regard to the forest's ecosystem. Sony VAIO VPCF22S8E battery

Adventuring

Transportation

The closest airport with scheduled international service is Mt. Fuji Shizuoka Airport. It opened in June 2009. It is about 80 kilometres (50 mi) from Mount Fuji.[41] The major international airports serving Tokyo, Tokyo International Airport (Haneda Airport) in Tokyo and Narita International Airport in Chiba, are hours from Mount FujiSony VAIO VPCF22S1E battery.

On 5 March 1966, BOAC Flight 911, a Boeing 707, broke up in flight and crashed near Mount Fuji Gotemba New fifth station, shortly after departure from Tokyo International Airport. All 113 passengers and 11 crew members died in the disaster, which was attributed to extreme clear air turbulence caused by lee waves downwind of the mountainSony VAIO VPCF22M1E battery. There is a memorial for the crash a short distance down from the Gotemba New fifth station.[42]

[edit]Climbing routes

Crowds of climbers at the summit

Approximately 300,000 people climbed Mount Fuji in 2009.[43] The most popular period for people to hike up Mount Fuji is from July to August, while huts and other facilities are operating.[43] Buses to the fifth station start running on 1 JulySony VAIO VPCF22L1E battery. Climbing from October to May is very strongly discouraged, after a number of high-profile deaths and severe cold weather.[44] Most Japanese climb the mountain at night in order to be in a position at or near the summit when the sun rises. The morning sunshine is called 御来光 "Goraikō" which means "honourable arrival of light".Sony VAIO VPCF22J1E battery

There are four major routes from the fifth station to the summit with an additional four routes from the foot of the mountain. The major routes from the fifth station are (clockwise) the Lake Kawaguchi, Subashiri, Gotemba, and Fujinomiya routes. The routes from the foot of the mountain are the Shojiko, Yoshida, Suyama, and Murayama routes. The stations on different routes are at different elevationsSony VAIO VPCF11S1E/B battery. The highest fifth station is located at Fujinomiya, followed by Kawaguchi, Subashiri, and Gotemba.

Even though it is only the second highest fifth stations, the Kawaguchiko route is the most popular route because of its large parking area and many large mountain huts where a climber can rest or stay. During the summer season, most Mount Fuji climbing tour buses arrive thereSony VAIO VPCF11M1E/H battery. The next popular is the Fujinomiya route which has the highest fifth station, followed by Subashiri and Gotemba.

Switchbacks and retaining walls along the trail reduce erosion from the large number of climbers.

Even though most climbers do not climb the Subashiri and Gotemba routes, many descend these because of their ash-covered paths. From the seventh station to near the fifth stationSony VAIO VPCF11D4E battery, one could run down these ash-covered paths in approximately 30 minutes. Besides these routes, there are tractor routes along the climbing routes. These tractor routes are used to bring food and other materials to huts on the mountain. Because the tractors usually take up most of the width of these paths and they tend to push large rocks from the side of the pathSony VAIO VPCF11C5E battery, the tractor paths are off-limits to the climbers on sections that are not merged with the climbing or descending paths. Nevertheless, one can sometimes see people riding mountain bikes along the tractor routes down from the summit. This is particularly risky, as it becomes difficult to control speed and may send some rocks rolling along the side of the path, which may hit other peopleSony VAIO VPCF11C4E/B battery.

The four routes from the foot of the mountain offer historical sites. The Murayama is the oldest Mount Fuji route and the Yoshida route still has many old shrines, teahouses, and huts along its path. These routes are gaining popularity recently and are being restored, but climbing from the foot of the mountain is still relatively uncommonSony VAIO PCG-31114V battery. Also, bears have been sighted along the Yoshida route.

The ascent from the new fifth station can take anywhere between three and eight hours while the descent can take from two to five hours. The hike from the foot of the mountain is divided into 10 stations, and there are paved roads up to the fifth station, which is about 2,300 metres (7,500 ft) above sea levelSony VAIO PCG-31113V battery.

Paraglider at South side, view from Gotenba

Huts at and above the fifth stations are usually manned during the climbing season, but huts below fifth stations are not usually manned for climbers. The number of open huts on routes are proportional to the number of climbers—Kawaguchiko has the most while Gotemba has the least. The huts along the Gotemba route also tend to start later and close earlier than those along the Kawaguchiko routeSony VAIO PCG-31112V battery. Also, because Mount Fuji is designated as a national park, it is illegal to camp above the fifth station.

There are eight peaks around the crater at the summit. The highest point in Japan is where the Mount Fuji Radar System used to be. Climbers are able to visit each of these peaks.

[edit]Paragliding

Paragliders take off in the vicinity of the fifth station Gotemba parking lot, between Subashiri and Hōei-zan peak on the south side from the MountainSony VAIO PCG-31111V battery, in addition to several other locations depending on wind direction. Several paragliding schools use the wide sandy/grassy slope between Gotenba and Subashiri parking lots as a training hill.

Geology

Geological cross-section of Fuji volcano

Further information: Historic eruptions of Mount Fuji and List of volcanoes in Japan

Mount Fuji is located at the triple junction where the Amurian Plate, the Okhotsk Plate, and the Philippine Sea Plate meet. Those plates form the western part of Japan, the eastern part of Japan, and the Izu Peninsula respectivelySony VAIO PCG-31114M battery.

Scientists have identified four distinct phases of volcanic activity in the formation of Mount Fuji. The first phase, called Sen-komitake, is composed of an andesite core recently discovered deep within the mountain. Sen-komitake was followed by the "Komitake Fuji," a basalt layer believed to be formed several hundred thousand years agoSony VAIO PCG-31113M battery. Approximately 100,000 years ago, "Old Fuji" was formed over the top of Komitake Fuji. The modern, "New Fuji" is believed to have formed over the top of Old Fuji around 10,000 years ago.[46]

The volcano is currently classified as active with a low risk of eruption. The last recorded eruption was the Hōei eruption which started on December 16, 1707 (Hōei 4, 23rd day of the 11th month) Sony VAIO PCG-31112M batteryand ended about January 1, 1708 (Hōei 4, 9th day of the 12th month) during the Edo period.[47] The eruption formed a new crater and a second peak (named Hōei-zan after the Hoei era) halfway down its side. Fuji spewed cinders and ash which fell like rain in Izu, Kai, Sagami, and Musashi.[48] Since then, there have been no signs of an eruption. In the evening of March 15, 2011Sony VAIO PCG-31111M battery, there was a magnitude 6.2 earthquake at shallow depth a few kilometres from Mount Fuji on its southern side. But according to the Japanese Meteorological Service there was no sign of any eruption.

Osaka (大阪 Ōsaka?)  listen (help·info) is a city in the Kansai region of Japan's main island of Honshu, a designated city under the Local Autonomy Law, the capital city of Osaka Prefecture and also the biggest part of Keihanshin areaSony VAIO PCG-41111V battery, which is represented by three major cities of Japan, Kyoto, Osaka and Kobe. Located at the mouth of the Yodo River on Osaka Bay, Osaka is the third largest city by population after Tokyo (special wards) and Yokohama.

Keihanshin is the second largest area in Japan by population and one of the largest metropolitan areas highly ranked in the world, with nearly 18 million people,[1] and by GDP the second largest area in Japan and the seventh largest area in the worldSony VAIO PCG-41112M battery.

Historically the commercial centre of Japan, Osaka functions as one of the command centers for the Japanese economy. The ratio between daytime and night time population is 141%, the highest in Japan, highlighting its status as an economic center.[2] Its nighttime population is 2.6 million, the third in the country, but in daytime the population surges to 3.7 millionSony VAIO PCG-41111M battery, second only after Tokyo (combining the Special wards of Tokyo, which is not a single incorporated city, for statistical purposes. See the Tokyo article for more information on the definition and makeup of Tokyo.) Osaka used to be referred to as the "nation's kitchen" (天下の台所 tenka no daidokoro?) in feudal Edo period because it was the centre of trading for rice, creating the first modern futures exchange market in the worldSONY VAIO PCG-21214V battery.

Prehistory to the Kofun period

Some of the earliest signs of habitation in the area of Osaka were found at the Morinomiya remains (森の宮遺跡 Morinomiya iseki?), with its shell mounds, including sea oysters and buried human skeletons from the 5th–6th centuries BC. It is believed that what is today the Uehonmachi area consisted of a peninsular land, with an inland sea in the eastSONY VAIO PCG-21213V battery. During the Yayoi period, permanent habitation on the plains grew as rice farming became popular.[3]

By the Kofun period, Osaka developed into a hub port connecting the region to the western part of Japan. The large numbers, and the increasing size, of tomb mounds found in the plains of Osaka are seen as evidence of political-power concentration, leading to the formation of a state. SONY VAIO PCG-21212V battery

[edit]Asuka and Nara period

In 645, Emperor Kōtoku built his palace, the Naniwa Nagara-Toyosaki Palace in Osaka,[8] making this area the capital (Naniwa-kyō). The place that became the modern city was by this time called Naniwa. This name, and derived forms, are still in use for districts in central Osaka such as Naniwa (浪速) and Namba (難波). SONY VAIO PCG-21212M batteryAlthough the capital was moved to Asuka (in Nara Prefecture today) in 655, Naniwa remained a vital connection, by land and sea, between Yamato (modern day Nara Prefecture), Korea, and China.[3][10]

In 744, Naniwa once again became the capital by order of Emperor Shōmu. Naniwa ceased to be the capital in 745, when the Imperial Court moved back to Heijō-kyō (now Nara) SONY VAIO PCG-21211M battery. The seaport function was gradually taken over by neighboring lands by the end of Nara period, but it remained a lively center of river, channel, and land transportation between Heian-kyō (Kyoto today) and other destinations.

[edit]Heian to Edo period

In 1496, the Jōdo Shinshū Buddhist sect set up their headquarters in the heavily fortified Ishiyama Hongan-ji on the site of the old Naniwa imperial palaceSONY VAIO PCG-51212M battery. Oda Nobunaga started a siege of the temple in 1570. After a decade, the monks finally surrendered, and the temple was razed, and Toyotomi Hideyoshi constructed Osaka Castle in its place.

Osaka was, for a long time, Japan's most important[11] economic center, with a large percentage of the population belonging to the merchant class (see Four divisions of society) SONY VAIO PCG-51211M battery. Over the course of the Edo period (1603–1867), Osaka grew into one of Japan's major cities and returned to its ancient role as a lively and important port. Its popular culture[12] was closely related to ukiyo-e depictions of life in Edo.

By 1780 Osaka was sponsoring a vibrant cultural life, as typified by its famous Kabuki theaters and Banraku puppet theaters. SONY VAIO PCG-51112M battery

In 1837, Ōshio Heihachirō, a low-ranking samurai, led a peasant insurrection in response to the city's unwillingness to support the many poor and suffering families in the area. Approximately one-quarter of the city was razed before shogunal officials put down the rebellion, after which Ōshio killed himself. SONY VAIO PCG-51111M battery

Osaka was opened to foreign trade by the government of the Bakufu at the same time as Hyōgo (modern Kobe) on 1 January 1868, just before the advent of the Boshin War and the Meiji Restoration.[15]

Osaka residents were stereotyped in Edo literature from at least the 18th century. Jippenisha Ikku in 1802 depicted Osakans as stingy almost beyond beliefSONY VAIO PCG-51111V battery. In 1809 the derogatory term "Kamigata zeeroku" was used by Edo residents to characterize inhabitants of the Osaka region in terms of calculation, shrewdness, lack of civic spirit, and the vulgarity of Osaka dialect. Edo writers aspired to samurai culture, and saw themselves as poor but generous, chaste, and public spiritedSONY VAIO PCG-81211V battery. Edo writers by contrast saw "zeeroku" as obsequious apprentices, stingy, greedy, gluttonous, and lewd. To some degree Osaka residents are stigmatized by Tokyo observers in much the same way down to the present, especially in terms of gluttony. As a famous saying has it, "Osaka wa kuidaore" (Osaka people eat 'til they drop). SONY VAIO PCG-81111V battery

Modern Osaka

Sennichimae area in 1916

The modern municipality was established[17] in 1889 by government ordinance, with an initial area of 15 km², overlapping today's Chūō and Nishi wards. Later, the city went through three major expansions to reach its current size of 222 km².

Osaka was the industrial center most clearly defined in the development of capitalism in Japan. The rapid industrialization attracted many Korean immigrants, who set up a life apart for themselves. SONY VAIO PCG-81212M battery The political system was pluralistic, with a strong emphasis on promoting industrialization and modernization.[19] Literacy was high and the educational system expanded rapidly, producing a middle class with a taste for literature and a willingness to support the arts.[20]

Like its European and American counterparts, Osaka displayed slums, unemployment, and poverty. In Japan it was here that municipal government first introduced a comprehensive system of poor relief, copied in part from British modelsSony VAIO PCG-81112M battery. Osaka policymakers stressed the importance of family formation and mutual assistance as the best way to combat poverty. This minimized the cost of welfare programs.[21]

The devastation during World War II was enormous, as fleets of American B-29 bombers blasted away on a regular basis in the last year of the war. Many people fled and most of the industrial districts were severely damagedSONY VAIO PCG-71111M battery. However the city quickly rebuilt its infrastructure after 1945 and regained its status as a major industrial and cultural center.[22]

Derivation of name

"Osaka" literally means "large hill" or "large slope." It is unclear when this name gained prominence over Naniwa, but the oldest usage of the name dates back to a 1496 text. Osaka, now written 大阪, was formerly written using a different second kanji as 大坂 prior to 1870SONY VAIO PCG-7192V battery. At the time, the partisans for the Meiji Restoration wished to avoid the second kanji being implicitly read as "士反," meaning samurai rebellion. The old writing is still in very limited use to emphasize history, but the second kanji 阪 is now universally considered referring to Osaka city and prefecture only, to distinguish it from homonyms in other Japanese prefecturesSONY VAIO PCG-7191V battery.

Geography

The city of Osaka has its west side open to Osaka Bay. It is otherwise completely surrounded by more than ten smaller cities, all of them in Osaka Prefecture, with one exception: the city of Amagasaki, belonging to Hyōgo Prefecture, in the northwest. The city occupies a larger area (about 13%) than any other city or village within Osaka PrefectureSONY VAIO PCG-7196M battery. When the city was established in 1889, the city occupied roughly what today are the wards of Chuo and Nishi, with only 15.27 square kilometres (3,773 acres) size, and grew into today's 222.30 square kilometres (54,932 acres) over several expansions. The biggest leap was in 1925, when 126.01 square kilometres (31,138 acres) was claimed through an expansionSONY VAIO PCG-7195M battery. The highest point in Osaka is in Tsurumi-ku at 37.5 metres (123.0 ft) Tokyo Peil, and the lowest point is in Nishiyodogawa-ku at −2.2 metres (−7.2 ft) Tokyo Peil.[23]

[edit]Climate

Osaka belongs to the humid subtropical climate zone (Köppen Cfa), with four distinct seasons. Its winters are generally mild, with January being the coldest month having an average high of 9.3 °C (49 °F). The city rarely sees snowfall during the winterSONY VAIO PCG-7194M battery. Spring in Osaka starts off mild, but ends up being hot and humid. It also tends to be Osaka’s wettest season, with the Tsuyu or rainy season occurring between late May to early July. Summers are very hot and humid. In the months of July and August, the average daily high temperature approaches 35 °C (95 °F) SONY VAIO PCG-7192M battery, while average nighttime temperatures typically hover around 25 °C (77 °F). Fall in Osaka sees a cooling trend, with the early part of the season resembling summer while the latter part of fall resembling winter.

Neighborhoods

Umeda Sky Building

A crowd in Dōtonbori

Central Osaka is often divided into two areas referred to as Kita (北, lit. north) and Minami (南, lit. south), at either end of the major thoroughfare Midōsuji. SONY PCG-8113M batteryKita is roughly the area surrounding the business and retail district of Umeda. Minami is home to the Namba, Shinsaibashi, and Dōtonbori shopping districts. The entertainment district around Dōtonbori Bridge with its famous giant mechanical crab, Triangle Park, and Amerikamura ("America Village") is in Minami. In Yodoyabashi and HonmachiSONY PCG-8112M battery , between Kita and Minami, is the traditional business area where courts and national/regional headquarters of major banks are located. The newer business area is in the Osaka Business Park located nearby Osaka Castle. Business districts have also formed around the secondary rail termini, such as Tennoji Station and Kyobashi StationSONY PCG-7134M battery.

“The 808 bridges of Naniwa” was an expression in old Japan for awe and wonder, an adage known across the land. “808” was a large number which symbolized the idea of “uncountable”. In the Edo period there were only about 200 bridges. Since Osaka is crossed by a number of rivers and canals, many bridges were built with specific namesSONY PCG-7131M battery , and the areas surrounding the bridges were often referred to by the names of the bridges, too. Some of the waterways, such as the Nagahori canal, have been filled in, while others still remain.[26] In 1925, there were actually 1629 bridges in Osaka but with the filling in of canals and rivers, as of April 2003, the number has dropped to 872, 760 of which are currently managed by Osaka City. SONY PCG-7122M battery

Demographics

According to the census in 2005, there were 2,628,811 residents in Osaka, an increase of 30,037 or 1.2% from 2000.[28] There were 1,280,325 households with approximately 2.1 persons per household. The population density was 11,836 persons per km². The Great Kanto Earthquake caused a mass migration to Osaka between 1920 and 1930SONY PCG-7121M battery, and the city became Japan's largest city in 1930 with 2,453,573 people, outnumbering even Tokyo, which had a population of 2,070,913. The population peaked at 3,252,340 in 1940, and had a post-war peak of 3,156,222 in 1965, but continued to decrease since, as the residents moved out to the suburbs. SONY PCG-7113M battery

There were 99,775.5 registered foreigners, the two largest groups being Korean (71,015) and Chinese (11,848). Ikuno, with its Tsuruhashi district, is the home to one of the largest population of Korean residents in Japan, with 27,466 registered zainichi Koreans. SONY PCG-7112M battery

[edit]Dialect

See also: Kansai-ben

The commonly spoken dialect of this area is Osaka-ben. Of the many other particularities that characterize Osaka-ben, an example is the use of the suffix hen instead of nai in the negative of verbs.

[edit]Politics

The Osaka City Council is the city's local government formed under the Local Autonomy Law. The Council has eighty-nine seatsSONY PCG-8Z3M battery, allocated to the twenty-four wards proportional to their population and re-elected by the citizens every four years. The Council elects its President and Vice President. Toshifumi Tagaya (LDP) is the current and 104th President since May 2008. The Mayor of the city is directly elected by the citizens every four years as well, in accordance with the Local Autonomy LawSONY PCG-8Z2M battery. Toru Hashimoto, former governor of Osaka Prefecture is the 19th mayor of Osaka since 2011. The mayor is supported by two Vice Mayors, currently Akira Morishita and Takashi Kashiwagi, who are appointed by him in accordance with the city bylaw.[32]

Osaka also houses several agencies of the Japanese Government. Below is a list of Governmental Offices housed in OsakaSONY PCG-8Z1M battery .

Japan Coast Guard, Fifth Regional Headquarters

Japan Fair Trade Commission; Kinki, Chugoku, Shikoku Office

Kinki Regional Finance Bureau

Kinki Regional Economy, Trade and Industry Bureau

Kinki Regional Transportation Bureau

Kinki Communications Bureau

Kinki Regional Development Bureau

Kinki Regional Police Bureau

Ministry of Foreign Affairs, Osaka Office

Politics regarding the use of nuclear energy

On 27 February 2012 three Kansai cities, Kyoto, Osaka and Kobe, jointly asked Kansai Electric Power Company to break its dependence on nuclear powerSONY PCG-8Y3M battery. In a letter to KEPCO they also requested to disclose information on the demand and supply of electricity, and for lower and stable prices. The three cities were stockholders of the plant: Osaka owned 9% of the shares, while Kobe had 3% and Kyoto 0.45%. Toru Hashimoto, the mayor of Osaka, announced a proposal to minimize the dependence on nuclear power for the shareholders meeting in June 2012. SONY PCG-8Y2M battery

On 18 March 2012 the city of Osaka decided as largest shareholder of Kansai Electric Power Co, that at the next shareholders-meeting in June 2012 it would demand a series of changes:

that Kansai Electric would be split into two companies, separating power generation from power transmission

a reduction of the number of the utility's executives and employees.

the implementation of absolutely secure measurements to ensuring the safety of the nuclear facilitiesSONY PCG-7Z1M battery .

the disposing of spent fuel.

the installation of new kind of thermal power generation to secure non-nuclear supply of energy.

selling all unnecessary assets including the stock holdings of KEPCO.

In this action Osaka had secured the support of two other cities and shareholders: Kyoto and Kobe, but with their combined voting-rights of 12.5 percent they were not certain of the ultimate outcome, because for this two-thirds of the shareholders would be needed to agree to revise the corporate charter. SONY PCG-6W2M battery

At a meeting held on 10 April 2012 by the "energy strategy council", formed by the city of Osaka and the governments of the prefectures, it became clear that at the end of the fiscal year 2011 some 69 employees of Kansai Electric Power Company were former public servants. "Amakudari" was the Japanese name for this practiceSONY PCG-5J5M battery: rewarding by hiring officials that formerly controlled and supervised the firm: among these people were:

13 ex-officials of the: Ministry of Land, Infrastructure, Transport and Tourism

3 ex-officials of the Ministry of Economy, Trade and Industry,

2 ex-officials of the Ministry of the Environment,

16 former policemen,

13 former civil engineers.

16 former policemen,

10 ex-firefighters

Besides this, it became known that Kansai Electric had done about 600 external financial donations, to a total sum of about 1.695 billion yen:

70 donations were paid to local governments: to a total of 699 million yenSONY PCG-5K2M battery

100 donations to public-service organizations: 443 million yen,

430 donations to various organizations and foundations: a total of 553 million yen

During this meeting some 8 conditions were compiled, that needed to be fulfilled before a restart of the No.3 and No.4 reactors Oi Nuclear Power Plant:

the consent of the local people and government within 100 kilometer from the plantSONY PCG-5K1M battery

the installation of a new independent regulatory agency

a nuclear safety agreement

the establishment of new nuclear safety standards

stress tests and evaluations based on these new safety rules [35]

Main article: Hanshin Industrial Region

See also Companies based in Osaka

Greater Osaka Area has the 7th largest metropolitan economy in the world after Tokyo, New York, Los Angeles, Chicago, Paris, and LondonSONY PCG-5J4M battery

The gross city product of Osaka in fiscal year 2004 was ¥21.3 trillion, an increase of 1.2% over the previous year. The figure accounts for about 55% of the total output in the Osaka Prefecture and 26.5% in the Kinki region. In 2004, commerce, services, and manufacturing have been the three major industries, accounting for 30%, 26%, and 11% of the total, respectivelySONY PCG-5J1M battery . The per capita income in the city was about ¥3.3 million, 10% higher than that of the Osaka Prefecture.[36] MasterCard Worldwide reported that Osaka ranks 19th among the world's leading cities and plays an important role in the global economy.[37]

Osaka Securities Exchange in the Kitahama district of Osaka

The GDP in the greater Osaka area (Osaka and Kobe) is $341 billion. Osaka, along with Paris and London, has one of the most productive hinterlands in the world. SONY PCG-5G2M battery

Historically, Osaka was the center of commerce in Japan, especially in the middle and pre-modern ages. Nomura Securities, the first brokerage firm in Japan, was founded in the city in 1925, and Osaka still houses a leading futures exchange. Many major companies have since moved their main offices to Tokyo. However, several major companies, such as PanasonicSony VAIO PCG-8131M battery, Sharp, and Sanyo, are still headquartered in Osaka. Recently, the city began a program, headed by mayor Junichi Seki, to attract domestic and foreign investment.[39]

The Osaka Securities Exchange, specializing in derivatives such as Nikkei 225 futures, is based in Osaka. The merger with JASDAQ will help the Osaka Securities Exchange become the largest exchange in Japan for start-up companies.Sony VAIO PCG-8152M battery

According to a U.S. study, Osaka is the second most expensive city for expatriate employees in the world and in Japan behind Tokyo. It jumped up nine places from 11th place in 2008. Osaka was the 8th most expensive city in 2007.[41]

[edit]Transportation

See also: Transport in Keihanshin

Kansai International Airport

[edit]Air

Osaka is served by two airports outside the city.

Kansai International Airport (IATA: KIX) handles all scheduled international passenger flights, some domestic flights, and most cargo flightsSony VAIO PCG-31311M battery. It is on an artificial island that sits off-shore in Osaka Bay and is administratively part of the nearby town of Tajiri. The airport is linked by a bus and train service into the center of the city and major suburbs.

Osaka International Airport (IATA:ITM), on the border of the cities of Itami and Toyonaka, houses most of the domestic services, some international cargo flights, and international VIP charters from and to the metropolitan regionSony VAIO PCG-31111M battery.

The port of Osaka serves as a shipping hub for the Kansai region along with the port of Kobe.

Osaka's international ferry connections are far greater than Tokyo's, mostly due to geography. There are international ferries that leave Osaka for Shanghai, Tianjin, Korea, and until recently Taiwan. Osaka's domestic ferry services include regular service to ports such as Kitakyushu, Kagoshima, Miyazaki and OkinawaSony VAIO PCG-8112M battery.

Port of Osaka

Shipping plays the crucial role for the freight coming in and out of the area nationally and internationally, and Greater Osaka areas exports and imported raw materials span the globe, with no one port dominating. Though the port of Kobe was in the 1970s the busiest in the world by containers handled, it no longer ranks among the top twenty worldwideSony VAIO PCG-7186M battery. Kansai area is home to 5 existing LNG terminals.

Rail

Greater Osaka has an extensive network of railway lines, comparable to that of Greater Tokyo. Main rail terminals in the city include, Umeda, Namba, Tennoji, Kyobashi, and Yodoyabashi.

Series of Shinkansen

Main articles: Shin-Ōsaka Station, Tōkaidō Shinkansen, and Sanyō Shinkansen

See also: Central Japan Railway Company and West Japan Railway CompanySony VAIO PCG-7171M battery

JR Central and JR West operate high-speed trains on the Tōkaidō-Sanyō Shinkansen line. Shin-Ōsaka Station is the Shinkansen terminal in Osaka. This station is connected to Ōsaka Station at Umeda by the JR Kyoto Line and the subway Midōsuji Line. All Shinkansen trains including Nozomi stop at Shin-Ōsaka Station and provide access to other major cities in JapanSony VAIO PCG-9Z1M battery, such as Kyoto, Nagoya, Yokohama, and Tokyo to the east, and Kobe, Okayama, Hiroshima, Kitakyushu and Fukuoka to the west. On March 12, 2011, JR West and JR Kyushu introduced new Shinkansen services, Mizuho and Sakura, linking Osaka with Kumamoto, Kagoshima, and other cities in central and south Kyushu. Sony VAIO PCG-5S1M battery

JR West special rapid series 223 and series 225 trains

See also: Keihan Electric Railway, Hankyu Railway, Hanshin Electric Railway, Kintetsu Corporation, and Nankai Electric Railway

Both JR West and private lines connect Osaka and its suburbs. The commuter rail network of JR West is called the Urban Network. Major stations on the JR Osaka Loop Line include Osaka (Umeda), Tennōji, Tsuruhashi, and KyōbashiSony VAIO PCG-5P1M battery. JR West competes with such private rail operators as Keihan Electric Railway, Hankyu Railway, Hanshin Railway, Kintetsu Corporation, and Nankai Electric Railway. The Keihan and Hankyu lines connect to Kyoto; the Hanshin and Hankyu lines connect to Kobe; the Kintetsu lines connect to Nara, Yoshino, Ise and NagoyaSony VAIO PCG-5N2M battery; and the Nankai lines connect to Osaka's southern suburbs and Kansai International Airport as well as Wakayama and Mt. Koya. Many lines in Greater Osaka accept either ICOCA or PiTaPa contactless smart cards for payment.[44]

[edit]Municipal subway

Osaka subway map

The Osaka Municipal Subway system is a part of Osaka's extensive rapid transit system. The metro system alone ranks 8th in the world by annual passenger ridershipSony VAIO PCG-3C2M battery, serving over 912 million people annually (a quarter of Greater Osaka Rail System's 4 billion annual riders), despite being only 8 of more than 70 lines in the metro area.

Regular bus services are provided by Osaka Municipal Transportation Bureau (the City Bus), as well as by group companies of Hankyu, Hanshin and Kintetsu. The City runs a dense network covering much parts of the city. Sony VAIO PCG-8161M battery The fare for the regular buses is a flat rate of 200 yen, or 100 yen for the smaller "Red Bus" looplines operated within segmented areas of the city. The other bus companies provide their services in supplement to their railway networks.

Culture and lifestyle

Glico man in Dōtonbori

The Festival Hall plans to re-open in a new building in 2013

The National Museum of Art is a subterranean museum for Japanese and international arts

[edit]Shopping and culinary

Osaka has a large number of wholesalers and retail shops: 25,228 and 34,707 respectively in 2004, according to the city statistics.[46] Sony VAIO PCG-8141M battery A lot of them are concentrated in the wards of Chuō (10,468 shops) and Kita (6,335 shops). Types of shops varies from malls to conventional shōtengai shopping arcades, built both above- and underground.[47] Shōtengai are seen across Japan, and Osaka has the longest one in the country.[48] The Tenjinbashi-suji arcade stretches from the road approaching the Temmangu shrine and continues for 2.6 km going north to southSony VAIO PCG-3J1M battery. The type of stores along the arcade includes commodities, clothing, and catering outlets.

Other shopping areas are Den Den Town, the electronic and manga/anime district, which is comparable to Akihabara; and the Umeda district, which has the Hankyu Sanbangai shopping mall and Yodobashi Camera, a huge electrical appliance store that offers a vast range of fashion stores, restaurants, and a Shonen Jump storeSony VAIO PCG-3H1M battery.

Osaka is known for its food, both in Japan and abroad. Author Michael Booth and food critic François Simon of Le Figaro have both suggested that Osaka is the food capital of the world.[49] Osakans love for the culinary is also made apparent in the old saying "Kyotoites are financially ruined by overspending on clothing, Osakans are ruined by spending on food".Sony VAIO PCG-3F1M battery Regional cuisine includes okonomiyaki (pan-fried batter cake), takoyaki (octopus dumplings), udon (a noodle dish), as well as the traditional oshizushi (pressed sushi), particularly battera (バッテラ?, pressed mackerel sushi).

Other shopping districts include:

American Village (Amerika-mura or "Ame-mura") – fashion for young people

Dōtonbori – part of Namba district and considered heart of the city

Namba – main shopping, sightseeing, and restaurant area
Sony VAIO PCG-3C1M battery


Shinsaibashi – luxury goods and department stores

Umeda – theaters, boutiques, and department stores near the train station

Entertainment and performing arts

See also: Kamigata

Osaka is home to the National Bunraku Theatre,[51] where traditional puppet plays, bunraku, are performed.

At Osaka Shouchiku-za, close to Namba station, kabuki can be enjoyed as well as manzai. Nearby is the Shin-kabuki-za, where enka concerts and Japanese dramas are performedSony VAIO PCG-9Z2L battery.

Yoshimoto, a Japanese entertainment conglomarate operates two halls in the city for manzai and other comedy shows: the Namba Grand Kagetsu and the Kyōbashi Kagetsu halls.

The Hanjō-tei opened in 2006, dedicated to rakugo. The theatre is in the Temmangū area.

Umeda Arts Theater opened in 2005 after relocating from its former 46-year-old Umeda Koma TheaterSony VAIO PCG-9Z1L battery. The theater has a main hall with 1,905 seats and a smaller theater-drama hall with 898 seats. Umeda Arts Theatre stages various type of performances including musicals, music concerts, dramas, rakugo, and others.

The Symphony Hall, built in 1982, is the first hall in Japan designed specially for classical music concerts. The Hall was opened with a concert by the Osaka Philharmonic Orchestra, which is based in the citySony VAIO PCG-9131L battery. Orchestras such as the Berlin Philharmonic and Vienna Philharmonic have played here during their world tours as well.

Osaka-jō Hall is a multi-purpose arena in Osaka-jō park with a capacity for up to 16,000 people. The hall has hosted numerous events and concerts including both Japanese and international artists.

Near City Hall in Nakanoshima, is Osaka Central Public Hall, a Neo-Renaissance-style building first opened in 1918Sony VAIO PCG-8161L battery. Re-opened in 2002 after major restoration, it serves as a multi-purpose rental facility for citizen events.

The Osaka Shiki Theatre[52] is one of the nine private halls operated nationwide by the Shiki Theatre, staging straight plays and musicals.

Festival Hall was a hall hosting various performances including noh, kyogen, kabuki, ballets as well as classic concertsSony VAIO PCG-8152L battery. The Bolshoi Ballet and the Philharmonia are among the many that were welcomed on stage in the past. The hall has closed at the end of 2008, planned to re-open in 2013 in a new facility.

Annual festivals

Tenji Matsuri

One of the most famous festivals held in Osaka, the Tenjin-matsuri is held on July 24 and 25. Other festivals in Osaka include the Aizen-matsuri, Shōryō-e and Tōka-Ebisu. Furthermore, Osaka annually hosts the Kansai International Film Festival...:) Sony VAIO PCG-8141L battery

[edit]Museum and galleries

Osaka Maritime Museum

The National Museum of Art (NMAO) is a subterranean Japanese and international art museum, housing mainly collections from the post-war era and regularly welcoming temporary exhibitions. Osaka Science Museum is in a five storied building next to the National Museum of Art, with a planetarium and an OMNIMAX theatreSony VAIO PCG-8131L battery. The Museum of Oriental Ceramics holds more than 2,000 pieces of ceramics, from China, Korea, Japan and Vietnam, featuring displays of some of their Korean celadon under natural light. Osaka Municipal Museum of Art is inside Tennōji park, housing over 8,000 pieces of Japanese and Chinese paintings and sculptures. The Osaka Maritime MuseumSony VAIO PCG-81312L battery, opened in 2000, is accessible only through an underwater tunnel into its dome. The Osaka Museum of History, opened in 2001, is located in a 13-story modern building providing a view of Osaka Castle. Its exhibits cover the history of Osaka from pre-history to the present day. Osaka Museum of Natural History houses a collection related to natural history and lifeSony VAIO PCG-81214L battery.

The Osaka Dome hosts home games of Orix Buffaloes and Hanshin Tigers

Osaka hosts four professional sport teams: one of them is the Orix Buffaloes, a Nippon Professional Baseball team, playing its home games at Kyocera Dome Osaka. Another baseball team, the Hanshin Tigers, although based in Nishinomiya, Hyōgo, plays a part of its home games in Kyocera Dome Osaka as wellSony VAIO PCG-81115L battery, when their homeground Kōshien Stadium is occupied with the annual National High School Baseball Championship games during summer season. There are two J.League clubs, Gamba Osaka, plays its home games at Osaka Expo '70 Stadium. Another club Cerezo Osaka, plays its home games at Nagai Stadium. The city is home to Osaka Evessa, a basketball team that plays in the bj leagueSony VAIO PCG-81114L battery. Evessa has won the first three championships of the league since its establishment. Kintetsu Liners, a rugby union team, play in the Top League. After winning promotion in 2008-09, they will again remain in the competition for the 2009-10 season. Their base is the Hanazono Rugby StadiumSony VAIO PCG-81113L battery.

The Sangatsubasho (三月場所 sangatsu basho, literally March ring), one of the six regular tournaments of professional Sumo is held annually in Osaka at Osaka Prefectural Gymnasium.

Another major annual sporting event that takes place is Osaka is Osaka International Ladies Marathon. Held usually at the end of January every yearSony VAIO PCG-7142L battery, the 42.195 km race starts from Nagai Stadium, runs through Nakanoshima, Midōsuji and Osaka castle park, and returns to the stadium. Another yearly event held at Nagai Stadium is the Osaka Gran Prix Athletics games operated by the International Association of Athletics Federations (IAAF) in May. The Osaka GP is the only IAAF games annually held in JapanSony VAIO PCG-7141L battery.

Osaka is the home of the 2011 created Japan Bandy Federation [8] and the introduction of bandy was made in the city.[9]

Osaka serves as one of the media hubs for Japan, housing headquarters of many media-related companies. Abundant television production takes place in the city and every nationwide TV network (with the exception of TXN network)Sony VAIO PCG-71111L batteryregisters its secondary-key station in Osaka. All five nationwide newspaper majors also house their regional headquarters, and most local newspapers nationwide have branches in Osaka. However major film productions are uncommon in the city. Most major films are produced in nearby Kyoto or in Tokyo. The Ad Council Japan is based in OsakaSony VAIO PCG-61411L battery.

[edit]Newspapers

All the five nationwide newspaper majors of Japan, the Asahi Shimbun, the Mainichi Shimbun, the Nihon Keizai Shimbun, the Sankei Shimbun and the Yomiuri Shimbun,[53] have their regional headquarters in Osaka and issue their regional editions. Furthermore, Osaka houses Osaka Nichi-nichi Shimbun, its newspaper pressSony VAIO PCG-61112L battery. Other newspaper related companies located in Osaka include, the regional headquarters of FujiSankei Business i.;Houchi Shimbunsha; Nikkan Sports;Sports Nippon, and offices of Kyodo News Jiji Press; Reuters; Bloomberg L.P..

[edit]Television and radio

The five TV networks are represented by Asahi Broadcasting Corporation (ANN), Kansai Telecasting Corporation (FNN), Mainichi Broadcasting System, Inc. (JNN) Sony VAIO PCG-61111L battery, Television Osaka, Inc. (TXN) and Yomiuri Telecasting Corporation (NNN), headquartered in Osaka. NHK has also its regional station based in the city. AM Radio services are provided by NHK as well as the ABC Radio (Asahi Broadcasting Corporation), MBS Radio (Mainichi Broadcasting System, Inc.) and Radio Osaka (Osaka Broadcasting Corporation) and headquartered in the citySony VAIO PCG-5T4L battery. FM services are available from NHK, FM Osaka, FM802 and FM Cocolo, the last providing programs in multiple languages including English.

As of February 2009, the city is fully covered by terrestrial digital TV broadcasts[54]

Publishing companies

Osaka is home to many publishing companies including: Examina, Izumi Shoin, Kaihou Shuppansha, Keihanshin Elmagazine, Seibundo Shuppan, Sougensha, and Toho ShuppanSony VAIO PCG-5T3L battery.

Amusement parks

Osaka Aquarium Kaiyukan – an aquarium located in Osaka Bay, containing 35,000 aquatic animals in 14 tanks, the largest of which holds 5,400 tons of water and houses a variety of sea animals including whale sharks. This tank is the world's second-largest aquarium tank, behind the Georgia Aquarium, whose largest tank holds approximately 29,000 tons of waterSony VAIO PCG-5T2L battery.

Tempozan Ferris Wheel, located next to the aquarium

Tennōji Zoo

Universal Studios Japan

Umeda Joypolis Sega

Shin-Umeda city – an innovative structure that has the floating garden observatory 170 m from the ground, which offers a 360-degree panoramic view of Osaka, popular for photographs, a structure that also houses an underground mall with restaurants and is styled in the early Showa period in the 1920sSony VAIO PCG-5S3L battery.

[edit]Parks

Nakanoshima Park: About 10.6 ha. In the vicinity of the City Hall

Osaka Castle Park: About 106 ha. Includes Osaka-jō Hall, a Japanese apricot garden, and more

Sumiyoshi Park

Tennōji Park: About 28 ha. Includes Tennōji Zoo; an art museum (established by contribution from Sumitomo family in 1936); and a Japanese garden, Keitaku-en (慶沢園). Keitaku-en was constructed in 1908 by Jihei Ogawa (小川治兵衛), an illustrious gardener in Japan. This was originally one of Sumitomo family's gardens until 1921Sony VAIO PCG-5S2L battery.

Utsubo Park

Nagai Park The 2007 IAAF World Championships in Athletics were held at Nagai Stadium, located in this park.

Tsurumi-Ryokuchi Park with the Sakuya Konohana Kan was the site of the flower expo in 1990.

 
The Statue of Liberty (Liberty Enlightening the World; French: La Liberté éclairant le monde) is a colossal neoclassical sculpture on Liberty Island in New York Harbor, designed by Frédéric Bartholdi and dedicated on October 28, 1886. The statue, a gift to the United States from the people of FranceDell Precision M2300 Battery, is of a robed female figure representing Libertas, the Roman goddess of freedom, who bears a torch and a tabula ansata (a tablet evoking the law) upon which is inscribed the date of the American Declaration of Independence, July 4, 1776. A broken chain lies at her feet. The statue has become an icon of freedom and of the United StatesDell Latitude 2110 Battery.

Bartholdi was inspired by French law professor and politician Édouard René de Laboulaye, who commented in 1865 that any monument raised to American independence would properly be a joint project of the French and American peoples. Due to the troubled political situation in France, work on the statue did not commence until the early 1870sDell Latitude 2100 Battery. In 1875, Laboulaye proposed that the French finance the statue and the Americans provide the pedestal and the site. Bartholdi completed the head and the torch-bearing arm before the statue was fully designed, and these pieces were exhibited for publicity at international expositions. The arm was displayed at the Centennial Exposition in 1876 and in New York's Madison Square Park from 1876 to 1882Dell Vostro 1400 Battery. Fundraising proved difficult, especially for the Americans, and by 1885 work on the pedestal was threatened due to lack of funds. Publisher Joseph Pulitzer of the World started a drive for donations to complete the project that attracted more than 120,000 contributors, most of whom gave less than a dollar. The statue was constructed in France, shipped overseas in cratesDell Inspiron 1420 Battery, and assembled on the completed pedestal on what was then called Bedloe's Island. The statue's completion was marked by New York's first ticker-tape parade and a dedication ceremony presided over by President Grover Cleveland.

The statue was administered by the United States Lighthouse Board until 1901 and then by the Department of War; since 1933 it has been maintained by the National Park Service. The statue was closed for renovation for much of 1938Dell Vostro 1700 Battery. In the early 1980s, it was found to have deteriorated to such an extent that a major restoration was required. While the statue was closed from 1984 to 1986, the torch and a large part of the internal structure were replaced. After the September 11 attacks in 2001, it was closed for reasons of safety and security; the pedestal reopened in 2004 and the statue in 2009Dell Vostro 1500 Battery, with limits on the number of visitors allowed to ascend to the crown. The statue, including the pedestal and base closed beginning on October 29, 2011, for up to a year so that a secondary staircase and other safety features can be installed; Liberty Island remains open. Public access to the balcony surrounding the torch has been barred for safety reasons since 1916Dell Inspiron 1721 Battery.

Design and construction

Origin

The origin of the Statue of Liberty project is generally traced to a comment made by French law professor and politician Édouard René de Laboulaye in mid-1865. In after-dinner conversation at his home near Versailles, Laboulaye, an ardent supporter of the Union in the American Civil War, stated: "If a monument should rise in the United States, as a memorial to their independenceDell Inspiron 1720 Battery, I should think it only natural if it were built by united effort—a common work of both our nations."[6]

Bartholdi's design patent

Laboulaye's comment was not intended as a proposal, but it inspired a young sculptor, Frédéric Bartholdi, who was present at the dinner.[6] Given the repressive nature of the regime of Napoleon III, Bartholdi took no immediate action on the idea except to discuss it with LaboulayeDell Inspiron 1521 Battery. Instead, Bartholdi approached Ismail Pasha, Khedive of Egypt, with a plan to build a huge lighthouse in the form of an ancient Egyptian female fellah or peasant, robed and holding a torch aloft, at the northern entrance to the Suez Canal in Port Said. Sketches and models were made of the proposed work, though it was never erected. There was a classical precedent for the Suez proposalDell Inspiron 1520 Battery, the Colossus of Rhodes: an ancient bronze statue of the Greek god of the sun, Helios. This statue is believed to have been over 100 feet (30 m) high, and it similarly stood at a harbor entrance and carried a light to guide ships.[7]

The American project was further delayed by the Franco-Prussian War, in which Bartholdi served as a major of militia.[6] In the war, Napoleon III was captured and deposedDell XPS M2010 Battery. Bartholdi's home province of Alsace was lost to the Prussians, and a more liberal republic was installed in France.[6] As Bartholdi had been planning a trip to the United States, he and Laboulaye decided the time was right to discuss the idea with influential Americans.[8] In June 1871, Bartholdi crossed the Atlantic, with letters of introduction signed by Laboulaye. Dell Vostro A860 Battery

Arriving at New York Harbor, Bartholdi focused on Bedloe's Island as a site for the statue, struck by the fact that vessels arriving in New York had to sail past it. He was delighted to learn that the island was owned by the United States government—it had been ceded by the New York State Legislature in 1800 for harbor defenseDell Vostro A840 Battery. It was thus, as he put it in a letter to Laboulaye: "land common to all the states."[10] As well as meeting many influential New Yorkers, Bartholdi visited President Ulysses S. Grant, who assured him that it would not be difficult to obtain the site for the statue.[11] Bartholdi crossed the United States twice by rail, and met many Americans whom he felt would be sympathetic to the project.[9] But he remained concerned that popular opinion on both sides of the Atlantic was insufficiently supportive of the proposal, and he and Laboulaye decided to wait before mounting a public campaign. Dell Vostro 1088 Battery

Bartholdi's Lion of Belfort

Bartholdi had made a first model of his concept in 1870.[13] The son of a friend of Bartholdi's, American artist John La Farge, later maintained that Bartholdi made the first sketches for the statue during his U.S. visit at La Farge's Rhode Island studio. Bartholdi continued to develop the concept following his return to France. Dell Vostro 1015 BatteryHe also worked on a number of sculptures designed to bolster French patriotism after the defeat by the Prussians. One of these was the Lion of Belfort, a monumental sculpture carved in sandstone below the fortress of Belfort, which during the war had resisted a Prussian siege for over three months. The defiant lion, 73 feet (22 m) long and half that in heightDell Vostro 1014 Battery, displays an emotional quality characteristic of Romanticism, which Bartholdi would later bring to the Statue of Liberty.[14]

Design, style, and symbolism

Detail from a fresco by Constantino Brumidi in the U.S. Capitol in Washington, D.C., showing two early symbols of America: Columbia (left) and the Indian princess

Bartholdi and Laboulaye considered how best to express the idea of American liberty.[15] In early American history, two female figures were frequently used as cultural symbols of the nation. Dell Inspiron 1410 Battery One, Columbia, was seen as an embodiment of the United States in the manner that Britannia was identified with the United Kingdom and Marianne came to represent France. Columbia had supplanted the earlier figure of an Indian princess, which had come to be regarded as uncivilized and derogatory toward Americans.[16] The other significant female icon in American culture was a representation of LibertyDell Vostro 2510 Battery, derived from Libertas, the goddess of freedom widely worshipped in ancient Rome, especially among emancipated slaves. A Liberty figure adorned most American coins of the time,[15] and representations of Liberty appeared in popular and civic art, including Thomas Crawford's Statue of Freedom (1863) atop the dome of the United States Capitol Building. Dell Vostro 1520 Battery

Artists of the 18th and 19th centuries striving to evoke republican ideals commonly used representations of Liberty.[15] A figure of Liberty was also depicted on the Great Seal of France.[15] However, Bartholdi and Laboulaye avoided an image of revolutionary liberty such as that depicted in Eugène Delacroix's famed Liberty Leading the People (1830)Dell Vostro 1510 Battery. In this painting, which commemorates France's Revolution of 1830, a half-clothed Liberty leads an armed mob over the bodies of the fallen.[16] Laboulaye had no sympathy for revolution, and so Bartholdi's figure would be fully dressed in flowing robes.[16] Instead of the impression of violence in the Delacroix work, Bartholdi wished to give the statue a peaceful appearance and chose a torch, representing progress, for the figure to hold. Dell Vostro 1320 Battery

Crawford's statue was designed in the early 1850s. It was originally to be crowned with a pileus, the cap given to emancipated slaves in ancient Rome. Secretary of War Jefferson Davis, a Southerner who would later serve as president of the Confederate States of America, was concerned that the pileus would be taken as an abolitionist symbol. He ordered that it be changed to a helmet.[18] Delacroix's figure wears a pileus, Dell Vostro 1310 Battery and Bartholdi at first considered placing one on his figure as well. Instead, he used a diadem, or crown, to top its head.[19] In so doing, he avoided a reference to Marianne, who invariably wears a pileus.[20] The seven rays form a halo or aureole.[21] They evoke the sun, the seven seas, and the seven continents,[22] and represent another means, besides the torch, whereby Liberty enlightens the world. Dell Latitude E4310 Battery

Bartholdi's early models were all similar in concept: a female figure in neoclassical style representing liberty, wearing a stola and pella (gown and cloak, common in depictions of Roman goddesses) and holding a torch aloft. The face was modeled after that of Charlotte Beysser Bartholdi, the sculptor's mother. Dell Latitude E4300 Battery He designed the figure with a strong, uncomplicated silhouette, which would be set off well by its dramatic harbor placement and allow passengers on vessels entering New York Bay to experience a changing perspective on the statue as they proceeded toward Manhattan. He gave it bold classical contours and applied simplified modeling, reflecting the huge scale of the project and its solemn purpose.[17] Bartholdi wrote of his techniqueDell Inspiron Mini 12 Battery:

Thomas Crawford's Statue of Freedom

The surfaces should be broad and simple, defined by a bold and clear design, accentuated in the important places. The enlargement of the details or their multiplicity is to be feared. By exaggerating the forms, in order to render them more clearly visible, or by enriching them with details, we would destroy the proportion of the work. Finally, the model, like the design, should have a summarized character, such as one would give to a rapid sketchDell Inspiron 1210 Battery. Only it is necessary that this character should be the product of volition and study, and that the artist, concentrating his knowledge, should find the form and the line in its greatest simplicity.[24]

Bartholdi made alterations in the design as the project evolved. Bartholdi considered having Liberty hold a broken chain, but decided this would be too divisive in the days after the Civil War. The erected statue does rise over a broken chain, half-hidden by her robes and difficult to see from the ground. Dell Studio 1737 Battery Bartholdi was initially uncertain of what to place in Liberty's left hand; he settled on a tabula ansata, a keystone-shaped tablet[25] used to evoke the concept of law.[26] Though Bartholdi greatly admired the United States Constitution, he chose to inscribe "JULY IV MDCCLXXVI" on the tablet, thus associating the date of the country's Declaration of Independence with the concept of liberty. Dell Studio 1735 Battery

Consultations with the metalwork foundry Gaget, Gauthier & Co. led Bartholdi to conclude that the skin should be made of copper sheets, beaten to shape by the repoussé method.[27] An advantage of this choice was that the entire statue would be light for its volume—the copper need be only .094 inches (2.4 mm) thick. He decided on a height of 151 feet (46 m) for the statueDell Studio 1558 Battery, double that of Italy's Colosso di San Carlo Borromeo and the German statue of Arminius, both made with the same method.[28] Bartholdi interested a former teacher of his, architect Eugène Viollet-le-Duc, in the project. Viollet-le-Duc planned to construct a brick pier within the statue, to which the skin would be anchored.[29]

Announcement and early workDell Studio 1557 Battery

By 1875, France was enjoying improved political stability and a recovering postwar economy. Growing interest in the upcoming Centennial Exhibition in Philadelphia led Laboulaye to decide it was time to seek public support.[30] In September 1875, he announced the project and the formation of the Franco-American Union as its fundraising arm. With the announcement, the statue was given a name, Liberty Enlightening the World. Dell Studio 1555 Battery The French would finance the statue; Americans would be expected to pay for the pedestal.[32] The announcement provoked a generally favorable reaction in France, though many Frenchmen resented the United States for not coming to their aid during the war with Prussia.[31] French monarchists opposed the statue, if for no other reason than it was proposed by the liberal Laboulaye, who had recently been elected a senator for life. Dell Studio 1537 BatteryLaboulaye arranged events designed to appeal to the rich and powerful, including a special performance at the Paris Opera on April 25, 1876, that featured a new cantata by composer Charles Gounod. The piece was titled La Liberté éclairant le monde, the French version of the statue's announced name. Dell Studio 1536 Battery

Stereoscopic image of right arm and torch of the Statue of Liberty, 1876 Centennial Exposition

Despite its initial focus on the elites, the Union was successful in raising funds from across French society. Schoolchildren and ordinary citizens gave, as did 181 French municipalities. Laboulaye's political allies supported the call, as did descendants of the French contingent in the American Revolutionary War. Less idealisticallyDell Studio 1535 Battery, contributions came from those who hoped for American support in the French attempt to build the Panama Canal. The firm of Japy Frères, copper merchants, donated all the copper needed to build the statue, a gift valued at 64,000 francs (about $16,000 at the time or the equivalent of $323,000 today).[33][34] The copper is said to have come from a mine in Visnes, Norway,[35] though this has not been conclusively determined. Dell Studio 14zn Battery

Although plans for the statue had not been finalized, Bartholdi moved forward with fabrication of the right arm, bearing the torch, and the head. Work began at the Gaget, Gauthier & Co. workshop.[37] In May 1876, Bartholdi traveled to the United States as a member of a French delegation to the Centennial Exhibition,[38] and arranged for a huge painting of the statue to be shown in New York as part of the Centennial festivities. Dell Studio 1440 Battery The arm did not arrive in Philadelphia until August; because of its late arrival, it was not listed in the exhibition catalogue, and while some reports correctly identified the work, others called it the "Colossal Arm" or "Bartholdi Electric Light". The exhibition grounds contained a number of monumental artworks to compete for fairgoers' interest, including an outsized fountain designed by Bartholdi. Dell Inspiron 1764 Battery Nevertheless, the arm proved popular in the exhibition's waning days, and visitors would climb up to the balcony of the torch to view the fairgrounds.[41] After the exhibition closed, the arm was transported to New York, where it remained on display in Madison Square Park for several years before it was returned to France to join the rest of the statue. Dell Inspiron 17 Battery

During his second trip to the United States, Bartholdi addressed a number of groups about the project, and urged the formation of American committees of the Franco-American Union.[42] Committees to raise money to pay for the foundation and pedestal were formed in New York, Boston, and Philadelphia. Dell Inspiron 1564 Battery The New York group eventually took on most of the responsibility for American fundraising and is often referred to as the "American Committee".[44] One of its members was 19-year-old Theodore Roosevelt, the future governor of New York and president of the United States.[42] On March 3, 1877, on his final full day in office, President Grant signed a joint resolution that authorized the President to accept the statue when it was presented by France and to select a site for it. President Rutherford B. HayesDell Inspiron 15 Battery, who took office the following day, selected the Bedloe's Island site that Bartholdi had proposed.[45]

Construction in France

The statue's head on exhibit at the Paris World's Fair, 1878

On his return to Paris in 1877, Bartholdi concentrated on completing the head, which was exhibited at the 1878 Paris World's Fair. Fundraising continued, with models of the statue put on sale. Tickets to view the construction activity at the Gaget, Gauthier & Co. workshop were also offered. Dell Inspiron 1464 Battery The French government authorized a lottery; among the prizes were valuable silver plate and a terracotta model of the statue. By the end of 1879, about 250,000 francs had been raised.[46]

The head and arm had been built with assistance from Viollet-le-Duc, who fell ill in 1879. He soon died, leaving no indication of how he intended to transition from the copper skin to his proposed masonry pier. Dell Inspiron 14 BatteryThe following year, Bartholdi was able to obtain the services of the innovative designer and builder Alexandre-Gustave Eiffel.[34] Eiffel and his structural engineer, Maurice Koechlin, decided to abandon the pier and instead build an iron truss tower. Eiffel opted not to use a completely rigid structure, which would force stresses to accumulate in the skin and lead eventually to crackingDell Inspiron 1750 Battery. To enable the statue to move slightly in the winds of New York Harbor and as the metal expanded on hot summer days, he loosely connected the support structure to the skin using what was dubbed an armature—a metal framework that ends in a mesh of metal straps, known as "saddles", that are riveted to the skin, providing firm support. In a labor-intensive processDell Inspiron 1440 Battery, each saddle had to be crafted individually.[48][49] To prevent galvanic corrosion between the copper skin and the iron support structure, Eiffel insulated the skin with asbestos impregnated with shellac.[50] The change in structural material from masonry to iron allowed Bartholdi to change his plans for the statue's assembly. He had originally expected to assemble the skin on-site as the masonry pier was builtdell Studio 1747 battery; instead he decided to build the statue in France and have it disassembled and transported to the United States for reassembly in place on Bedloe's Island.[51]

Eiffel's design made the statue one of the earliest examples of curtain wall construction, in which the exterior of the structure is not load bearing, but is instead supported by an interior framework. He included two interior spiral staircases, to make it easier for visitors to reach the observation point in the crown. dell Studio 1745 battery Access to an observation platform surrounding the torch was also provided, but the narrowness of the arm allowed for only a single ladder, 40 feet (12 m) long.[53] As the pylon tower arose, Eiffel and Bartholdi coordinated their work carefully so that completed segments of skin would fit exactly on the support structure.[54]

In a symbolic act, the first rivet placed into the skin, fixing a copper plate onto the statue's big toe, was driven by United States Ambassador to France Levi P. Morton. dell Studio 1749 battery The skin was not, however, crafted in exact sequence from low to high; work proceeded on a number of segments simultaneously in a manner often confusing to visitors.[56] Some work was performed by contractors—one of the fingers was made to Bartholdi's exacting specifications by a coppersmith in the southern French town of Montauban. dell Studio 17 battery By 1882, the statue was complete up to the waist, an event Barthodi celebrated by inviting reporters to lunch on a platform built within the statue.[58] Laboulaye died in 1883. He was succeeded as chairman of the French committee by Ferdinand de Lesseps, builder of the Suez Canal. The completed statue was formally presented to Ambassador Morton at a ceremony in Paris on July 4, 1884, and de Lesseps announced that the French government had agreed to pay for its transport to New York. dell Studio XPS 1647 battery The statue remained intact in Paris pending sufficient progress on the pedestal; by January 1885, this had occurred and the statue was disassembled and crated for its ocean voyage.[60]

Fundraising, criticism, and construction in the United States

Frank Leslie's Illustrated Newspaper, June 1885, showing woodcuts of the completed statue in Paris, Bartholdi, and the statue's interior structure

The committees in the United States faced great difficulties in obtaining funds. The Panic of 1873 had led to an economic depression that persisted through much of the decade. The Liberty statue project was not the only such undertaking that had difficulty raising moneydell Studio XPS 1645 battery: construction of the obelisk later known as the Washington Monument sometimes stalled for years; it would ultimately take over three-and-a-half decades to complete.[61] There was criticism both of Bartholdi's statue and of the fact that the gift required Americans to foot the bill for the pedestal. In the years following the Civil War, most Americans preferred realistic artworks depicting heroes and events from the nation's history, rather than allegorical works like the Liberty statue. dell Studio XPS 1640 batteryThere was also a feeling that Americans should design American public works—the selection of Italian-born Constantino Brumidi to decorate the Capitol had provoked intense criticism, even though he was a naturalized U.S. citizen.[62] Harper's Weekly declared its wish that "M. Bartholdi and our French cousins had 'gone the whole figure' while they were about it, and given us statue and pedestal at once." dell Studio XPS 16 batteryThe New York Times stated that "no true patriot can countenance any such expenditures for bronze females in the present state of our finances."[64] Faced with these criticisms, the American committees took little action for several years.[64]

The foundation of Bartholdi's statue was to be laid inside Fort Wood, a disused army base on Bedloe's Island constructed between 1807 and 1811. Since 1823, it had rarely been used, though during the Civil War, it had served as a recruiting station. dell studio xps 13 battery The fortifications of the structure were in the shape of an eleven-point star. The statue's foundation and pedestal were aligned so that it would face southeast, greeting ships entering the harbor from the Atlantic Ocean.[66] In 1881, the New York committee commissioned Richard Morris Hunt to design the pedestal. Within months, Hunt submitted a detailed plan, indicating that he expected construction to take about nine months. dell studio xps 1340 battery He proposed a pedestal 114 feet (35 m) in height; faced with money problems, the committee reduced that to 89 feet (27 m).[68]

Hunt's pedestal design contains elements of classical architecture, including Doric portals, and the large mass is fragmented with architectural detail to focus attention on the statue.[68] In form, it is a truncated pyramid, 62 feet (19 m) square at the base and 39.4 feet (12.0 m) at the top. The four sides are identical in appearanceDell Vostro 1720 Battery. Above the door on each side, there are ten disks upon which Bartholdi proposed to place the coats of arms of the states (between 1876 and 1889, there were 40 U.S. states), although this was not done. Above that, a balcony was placed on each side, framed by pillars. Bartholdi placed an observation platform near the top of the pedestal, above which the statue itself rises. Dell Vostro 1710 Battery According to author Louis Auchincloss, the pedestal "craggily evokes the power of an ancient Europe over which rises the dominating figure of the Statue of Liberty".[68] The committee hired former army General Charles Pomeroy Stone to oversee the construction work.[70] Construction on the 15-foot (4.6 m) deep foundation began in 1883, and the pedestal's cornerstone was laid in 1884. dell xps m1730 batteryIn Hunt's original conception, the pedestal was to have been made of solid granite. Financial concerns again forced him to revise his plans; the final design called for poured concrete walls, up to 20 feet (6.1 m) thick, faced with granite blocks.[71][72] The concrete mass was the largest poured to that time.[72]

Fundraising for the statue had begun in 1882. The committee organized a large number of money-raising events. dell xps m1710 battery As part of one such effort, an auction of art and manuscripts, poet Emma Lazarus was asked to donate an original work. She initially declined, stating she could not write a poem about a statue. At the time, she was also involved in aiding refugees to New York who had fled anti-Semitic pogroms in eastern Europe. These refugees were forced to live in conditions that the wealthy Lazarus had never experienceddell xps m1530 battery. She saw a way to express her empathy for these refugees in terms of the statue.[74] The resulting sonnet, "The New Colossus", including the iconic lines "Give me your tired, your poor/Your huddled masses yearning to breathe free", is uniquely identified with the Statue of Liberty and is inscribed on a plaque in the museum in the base. dell xps m1330 battery

Richard Morris Hunt's pedestal under construction in June 1885

Even with these efforts, fundraising lagged. Grover Cleveland, the governor of New York, vetoed a bill to provide $50,000 for the statue project in 1884. An attempt the next year to have Congress provide $100,000, sufficient to complete the project, failed when Democratic representatives would not agree to the appropriation. The New York committee, with only $3,000 in the bankdell xps m1210 battery, suspended work on the pedestal. With the project in jeopardy, groups from other American cities, including Boston and Philadelphia, offered to pay the full cost of erecting the statue in return for relocating it.[76] Joseph Pulitzer, publisher of the World, a New York newspaper, announced a drive to raise $100,000 (the equivalent of $2.3 million today).[33] Pulitzer pledged to print the name of every contributor, no matter how small the amount given. DELL Precision M6500 Battery The drive captured the imagination of New Yorkers, especially when Pulitzer began publishing the notes he received from contributors. "A young girl alone in the world" donated "60 cents, the result of self denial."[78] One donor gave "five cents as a poor office boy's mite toward the Pedestal Fund." A group of children sent a dollar as "the money we saved to go to the circus with." DELL Precision M6400 Battery Another dollar was given by a "lonely and very aged woman."[78] Residents of a home for alcoholics in New York's rival city of Brooklyn (the cities would not merge until 1898) donated $15; other drinkers helped out through donation boxes in bars and saloons.[80] A kindergarten class in Davenport, Iowa, mailed the World a gift of $1.35. DELL Precision M4500 Battery

As the donations flooded in, the committee resumed work on the pedestal.[81] In June, New Yorkers displayed their new-found enthusiasm for the statue, as the French vessel Isère arrived with the crates holding the disassembled statue on board. Two hundred thousand people lined the docks and hundreds of boats put to sea to welcome the Isère.[82] After five months of daily calls to donate to the statue fund, on August 11, 1885, the World announced that $102,000 had been raised from 120,000 donorsDELL Precision M4400 Battery, and that 80 percent of the total had been received in sums of less than one dollar.[83]

Even with the success of the fund drive, the pedestal was not completed until April 1886. Immediately thereafter, reassembly of the statue began. Eiffel's iron framework was anchored to steel I-beams within the concrete pedestal and assembled.[84] Once this was done, the sections of skin were carefully attached. DELL Precision M2400 BatteryDue to the width of the pedestal, it was not possible to erect scaffolding, and workers dangled from the armature by ropes while installing the skin sections. Nevertheless, no one died during the construction work.[86] Bartholdi had planned to put floodlights on the torch's balcony to illuminate it; a week before the dedication, the Army Corps of Engineers vetoed the proposalDELL Latitude E6510 Battery, fearing that ships' pilots passing the statue would be blinded. Instead, Bartholdi cut portholes in the torch (which was covered with gold leaf) and placed the lights inside them.[87] A power plant was installed on the island to light the torch and for other electrical needs.[88] After the skin was completed, renowned landscape architect Frederick Law Olmstead, designer of New York's Central Park and Brooklyn's Prospect Park, supervised a cleanup of Bedloe's Island in anticipation of the dedication. dell latitude e6500 battery

Dedication

Unveiling of the Statue of Liberty Enlightening the World (1886) by Edward Moran. Oil on canvas. The J. Clarence Davies Collection, Museum of the City of New York.

A ceremony of dedication was held on the afternoon of October 28, 1886. President Grover Cleveland, the former New York governor, presided over the event.[90] On the morning of the dedication, a parade was held in New York Citydell latitude e6400 battery; estimates of the number of people who watched it ranged from several hundred thousand to a million. President Cleveland headed the procession, then stood in the reviewing stand to see bands and marchers from across America. General Stone was the grand marshal of the parade. The route began at Madison Square, once the venue for the arm, and proceeded to Battery Park at the southern tip of Manhattan by way of Fifth Avenue and BroadwayDELL Latitude E5510 Battery, with a slight detour so the parade could pass in front of the World building on Park Row. As the parade passed the New York Stock Exchange, traders threw ticker tape from the windows, beginning the New York tradition of the ticker-tape parade.[91]

A nautical parade began at 12:45 p.m., and President Cleveland embarked on a yacht that took him across the harbor to Bedloe's Island for the dedication.[92] De Lesseps made the first speech, on behalf of the French committee, followed by the chairman of the New York committeeDELL Latitude E5410 Battery, Senator William M. Evarts. A French flag draped across the statue's face was to be lowered to unveil the statue at the close of Evarts's speech, but Bartholdi mistook a pause as the conclusion and let the flag fall prematurely. The ensuing cheers put an end to Evarts's address.[91] President Cleveland spoke next, stating that the statue's "stream of light shall pierce the darkness of ignorance and man's oppression until Liberty enlightens the world".Dell Latitude E5400 Battery Bartholdi, observed near the dais, was called upon to speak, but he refused. Orator Chauncey M. Depew concluded the speechmaking with a lengthy address.[94]

No members of the general public were permitted on the island during the ceremonies, which were reserved entirely for dignitaries. The only females granted access were Bartholdi's wife and de Lesseps's granddaughter; officials stated that they feared women might be injured in the crush of peopleDell Latitude E5500 Battery. The restriction offended area suffragists, who chartered a boat and got as close as they could to the island. The group's leaders made speeches applauding the embodiment of Liberty as a woman and advocating women's right to vote.[93] A scheduled fireworks display was postponed until November 1 because of poor weather.[95]

Shortly after the dedication, the Cleveland Gazette, an African American newspaper, suggested that the statue's torch not be lit until the United States became a free nation "in reality"dell latitude d830 battery:

"Liberty enlightening the world," indeed! The expression makes us sick. This government is a howling farce. It can not or rather does not protect its citizens within its own borders. Shove the Bartholdi statue, torch and all, into the ocean until the "liberty" of this country is such as to make it possible for an inoffensive and industrious colored man to earn a respectable living for himself and familydell latitude d820 battery, without being ku-kluxed, perhaps murdered, his daughter and wife outraged, and his property destroyed. The idea of the "liberty" of this country "enlightening the world," or even Patagonia, is ridiculous in the extreme.[96]

History since dedication

Lighthouse Board and War Department (1886–1933)

Government poster using the Statue of Liberty to promote the sale of Liberty Bonds

When the torch was illuminated on the evening of the statue's dedication, it produced only a faint gleam, barely visible from Manhattan. The World characterized it as "more like a glowworm than a beacon." dell inspiron e1705 batteryBartholdi suggested gilding the statue to increase its ability to reflect light, but this proved too expensive. The United States Lighthouse Board took over the Statue of Liberty in 1887 and pledged to install equipment to enhance the torch's effect; in spite of its efforts, the statue remained virtually invisible at night. When Bartholdi returned to the United States in 1893, he made additional suggestions, all of which proved ineffective. He did successfully lobby for improved lighting within the statuedell inspiron e1505 battery, allowing visitors to better appreciate Eiffel's design.[88] In 1901, President Theodore Roosevelt, once a member of the New York committee, ordered the statue's transfer to the War Department, as it had proved useless as a lighthouse.[97] A unit of the Army Signal Corps was stationed on Bedloe's Island until 1923, after which military police remained there while the island was under military jurisdiction. dell inspiron 9400 battery

The statue rapidly became a landmark. Many immigrants who entered through New York saw it as a welcoming sight. Oral histories of immigrants record their feelings of exhilaration on first viewing the Statue of Liberty. One immigrant who arrived from Greece recalled,

I saw the Statue of Liberty. And I said to myself, "Lady, you're such a beautiful! [sic] You opened your arms and you get all the foreigners here. Give me a chance to prove that I am worth itdell inspiron 9300 battery, to do something, to be someone in America." And always that statue was on my mind.[99]

Originally, the statue was a dull copper color, but shortly after 1900 a green patina, also called verdigris, caused by the oxidation of the copper skin, began to spread. As early as 1902 it was mentioned in the press; by 1906 it had entirely covered the statue.[100] In the belief that the patina was evidence of corrosion, Congress authorized $62,800 to paint the statue both inside and out. dell inspiron 9200 battery There was considerable public protest against the proposed exterior painting.[102] The Army Corps of Engineers studied the patina for any ill effects to the statue and concluded that it protected the skin, "softened the outlines of the Statue and made it beautiful."[103] The statue was painted only on the inside. The Corps of Engineers also installed an elevator to take visitors from the base to the top of the pedestal. dell inspiron 6400 battery

Bedloe's Island in 1927, showing the statue and army buildings. The eleven-pointed walls of Fort Wood, which still form the statue's base, are visible.

On July 30, 1916, during World War I, German saboteurs set off a disastrous explosion on the Black Tom peninsula in Jersey City, New Jersey, in what is now part of Liberty State Park, close to Bedloe's Islanddell inspiron 6000 battery. Carloads of dynamite and other explosives that were being sent to Britain and France for their war efforts were detonated, and seven people were killed. The statue sustained minor damage, mostly to the torch-bearing right arm, and was closed for ten days. The cost to repair the statue and buildings on the island was about $100,000. The narrow ascent to the torch was closed for public safety reasons, and it has remained closed ever since. dell inspiron 640M battery

That same year, Ralph Pulitzer, who had succeeded his father Joseph as publisher of the World, began a drive to raise $30,000 for an exterior lighting system to illuminate the statue at night. He claimed over 80,000 contributors but failed to reach the goal. The difference was quietly made up by a gift from a wealthy donor—a fact that was not revealed until 1936dell inspiron 630M battery. An underwater power cable brought electricity from the mainland and floodlights were placed along the walls of Fort Wood. Gutzon Borglum, who later sculpted Mount Rushmore, redesigned the torch, replacing much of the original copper with stained glass. On December 2, 1916, President Woodrow Wilson pressed the telegraph key that turned on the lights, successfully illuminating the statue. dell inspiron 600M battery

After the United States entered World War I in 1917, images of the statue were heavily used in both recruitment posters and the Liberty Bond drives that urged American citizens to support the war financially. This impressed upon the public the war's stated purpose—to secure liberty—and served as a reminder that embattled France had given the United States the statue. dell inspiron 500M battery

In 1924, President Calvin Coolidge used his authority under the Antiquities Act to declare the statue a national monument.[97] The only successful suicide in the statue's history occurred five years later, when a man climbed out of one of the windows in the crown and jumped to his death, glancing off the statue's breast and landing on the base. Dell Inspiron 1570 Battery

Early National Park Service years (1933–1982)

September 26, 1972: President Richard Nixon visits the statue to open the American Museum of Immigration. The statue's raised right foot is visible, showing that it is depicted moving forward.

In 1933, President Franklin Roosevelt ordered the statue transferred to the National Park Service (NPS). In 1937, the NPS gained jurisdiction over the rest of Bedloe's Island. Dell Inspiron 1470 Battery With the Army's departure, the NPS began to transform the island into a park.[107] The Works Progress Administration (WPA) demolished most of the old buildings, regraded and reseeded the eastern end of the island, and built granite steps for a new public entrance to the statue from its rear. The WPA also carried out restoration work within the statue, temporarily removing the rays from the statue's halo so their rusted supports could be replacedDell Inspiron 1320 Battery. Rusted cast-iron steps in the pedestal were replaced with new ones made of reinforced concrete;[108] the upper parts of the stairways within the statue were replaced, as well. Copper sheathing was installed to prevent further damage from rainwater that had been seeping into the pedestal.[109] The statue was closed to the public from May until December 1938. Dell Inspiron XPS Battery

During World War II, the statue remained open to visitors, although it was not illuminated at night due to wartime blackouts. It was lit briefly on December 31, 1943, and on D-Day, June 6, 1944, when its lights flashed "dot-dot-dot-dash," the Morse code for V, for victory. New, powerful lighting was installed in 1944–1945, and beginning on V-E DayDell Inspiron 9100 Battery, the statue was once again illuminated after sunset. The lighting was for only a few hours each evening, and it was not until 1957 that the statue was illuminated every night, all night.[110] In 1946, the interior of the statue within reach of visitors was coated with a special plastic so that graffiti could be washed away.Dell Studio 1458 Battery

In 1956, an act of Congress officially renamed Bedloe's Island as Liberty Island, a change advocated by Bartholdi generations earlier. The act also mentioned the efforts to found an American Museum of Immigration on the island, which backers took as federal approval of the project, though the government was slow to grant funds for it. Dell Studio 1457 Battery Nearby Ellis Island was made part of the Statue of Liberty National Monument by proclamation of President Lyndon Johnson in 1965.[97] In 1972, the immigration museum, in the statue's base, was finally opened in a ceremony led by President Richard Nixon. The museum's backers never provided it with an endowment to secure its future and it closed in 1991 after the opening of an immigration museum on Ellis Island. Dell Studio 1450 Battery

The statue was several times taken over briefly by demonstrators, publicizing causes such as Puerto Rican independence, opposition to abortion, and opposition to US intervention in Grenada. Demonstrations with the permission of the Park Service included a Gay Pride Parade rally and the annual Captive Baltic Nations rally. Dell Latitude D430 Battery A powerful new lighting system was installed in advance of the American Bicentennial in 1976. The statue was the focal point for Operation Sail, a regatta of tall ships from all over the world that entered New York Harbor on July 4, 1976, and sailed around Liberty Island.[113] The day concluded with a spectacular display of fireworks near the statue. Dell Latitude D420 Battery

Renovation to present (since 1982)

See also: Liberty Weekend

July 4, 1986: First Lady Nancy Reagan (in red) reopens the statue to the public.

The statue was examined in great detail by French and American engineers as part of the planning for its centennial in 1986.[115] In 1982, it was announced that the statue was in need of considerable restoration. Careful study had revealed that the right arm had been improperly attached to the main structure. It was swaying more and more when strong winds blew and there was a significant risk of structural failureDell Latitude E6520 Battery. In addition, the head had been installed 2 feet (0.61 m) off center, and one of the rays was wearing a hole in the right arm when the statue moved in the wind. The armature structure was badly corroded, and about two percent of the exterior plates needed to be replaced.[116] Although problems with the armature had been recognized as early as 1936, when cast iron replacements for some of the bars had been installedDell Latitude E6420 Battery, much of the corrosion had been hidden by layers of paint applied over the years.[117]

In May 1982, President Ronald Reagan announced the formation of the Statue of Liberty–Ellis Island Centennial Commission, led by Chrysler Corporation chair Lee Iacocca, to raise the funds needed to complete the work.[118] Through its fundraising arm, the Statue of Liberty–Ellis Island Foundation, Inc., the group raised more than $350 million in donations. Dell Latitude E6320 Battery The Statue of Liberty was one of the earliest beneficiaries of a cause marketing campaign. A 1983 promotion advertised that for each purchase made with an American Express card, the company would contribute one cent to the renovation of the statue. The campaign generated contributions of $1.7 million to the restoration project.[120]

In 1984, the statue was closed to the public for the duration of the renovationDell Latitude E6220 Battery. Workers erected scaffolding that obscured the statue from view. Liquid nitrogen was used to remove layers of paint that had been applied to the interior of the copper skin over decades, leaving two layers of coal tar, originally applied to plug leaks and prevent corrosion. Blasting with baking soda powder removed the tar without further damaging the copper.[121] The restorers' work was hampered by the asbestos-based substance that Bartholdi had used (ineffectively, as inspections showed) Dell Latitude E6120 Battery to prevent galvanic corrosion. Workers within the statue had to wear protective gear, dubbed "moon suits", with self-contained breathing circuits.[122] Larger holes in the copper skin were repaired, and new copper was added where necessary.[123] The replacement skin was taken from a copper rooftop at Bell Labs, which had a patina that closely resembled the statue'sDell Latitude E5520 Battery; in exchange, the laboratory was provided some of the old copper skin for testing.[124] The torch, found to have been leaking water since the 1916 alterations, was replaced with an exact replica of Bartholdi's unaltered torch.[125] Consideration was given to replacing the arm and shoulder; the National Park Service insisted that they be repaired instead. Dell Latitude E5420 Battery

The entire armature was replaced. The puddled iron bars used by Eiffel were gradually removed. The new bars that attach to the pylon are made of low-carbon corrosion-resistant stainless steel. The bars that now hold the staples next to the skin are made of Ferralium, an alloy that bends slightly and returns to its original shape as the statue moves.sony vgp-bps2 battery To prevent the ray and arm making contact, the ray was realigned by several degrees.[128] The lighting was again replaced—night-time illumination now comes from metal halide lamps that send beams of light to particular parts of the pedestal or statue, showing off various details.[129] Access to the pedestal, which had been through a nondescript entrance built in the 1960ssony vgp-bps3 battery, was renovated to create a wide opening framed by a set of monumental bronze doors with designs symbolic of the renovation.[130] A modern elevator was installed, allowing handicapped access to the observation area of the pedestal.[131] An emergency elevator was installed within the statue, reaching up to the level of the shoulder. sony vgp-bps4 battery

September 11, 2001: The twin towers of the World Trade Center burn with the Statue of Liberty in the foreground.

July 3–6, 1986, was designated "Liberty Weekend", marking the centennial of the statue and its reopening. President Reagan presided over the rededication, with French President François Mitterrand in attendance. July 4 saw a reprise of Operation Sail,[133] and the statue was reopened to the public on July 5. sony vgp-bps5 battery In Reagan's dedication speech, he stated, "We are the keepers of the flame of liberty; we hold it high for the world to see."[133]

Following the September 11 attacks, the statue and Liberty Island were immediately closed to the public. The island reopened at the end of 2001, while the pedestal and statue remained off-limits. The pedestal reopened in August 2004,[134] but the National Park Service announced that visitors could not safely be given access to the statue due to the difficulty of evacuation in an emergencysony vgp-bps7 battery. The Park Service adhered to that position through the remainder of the Bush administration.[135] New York Congressman Anthony D. Weiner made the statue's reopening a personal crusade.[136] On May 17, 2009, President Barack Obama's Secretary of the Interior, Ken Salazar, announced that as a "special gift" to America, the statue would be reopened to the public as of July 4, but that only a limited number of people would be permitted to ascend to the crown each day. sony vgp-bpl7 battery The statue, including the pedestal and base, closed on October 29, 2011 (the day after celebrations to mark the statue's 125th anniversary), for installation of new elevators and staircases, and to bring other facilities, such as restrooms, up to code. Although the statue is closed to the public for up to a year, Liberty Island remains open. sony vgp-bps8 battery

Access and attributes

Location and visiting

Tourists aboard a Circle Line ferry bound for Liberty Island, June 1973

The statue is situated in Upper New York Bay on Liberty Island, south of Ellis Island. Both islands were ceded by New York to the federal government in 1800.[138] As agreed in an 1834 compact between New York and New Jersey that set the state border at the bay's midpoint, the original islands remain New York territory despite their location on the New Jersey side of the state line. Land created by reclamation at Ellis is New Jersey territory. sony vgp-bps8a battery

Entrance to the Statue of Liberty National Monument is free, but there is a charge for the ferry service that all visitors must use, as private boats may not dock at the island. A concession was granted in 2007 to Statue Cruises to operate the transportation and ticketing facilities, replacing Circle Line, which had operated the service since 1953sony vgp-bps8b battery. The ferries, which depart from Liberty State Park in Jersey City and Battery Park in Lower Manhattan, also stop at Ellis Island, making a combined trip possible.[141] All ferry riders are subject to security screening, similar to airport procedures, prior to boarding.[142]

The statue, pedestal, and base are presently closed for renovation work.[1] When the structure is open, visitors intending to enter the statue's base and pedestal must obtain a complimentary museum/pedestal ticket along with their ferry ticket. sony vgp-bpl8 battery Those wishing to climb the staircase within the statue to the crown purchase a special ticket, which may be reserved up to a year in advance. A total of 240 people per day are permitted to ascend: ten per group, three groups per hour. Climbers may bring only medication and cameras—lockers are provided for other items—and must undergo a second security screening. sony vgp-bps9 battery

Inscriptions, plaques, and dedications

Plaque honoring poet Emma Lazarus, with the text of "The New Colossus"

There are several plaques and dedicatory tablets on or near the Statue of Liberty. A plaque on the copper just under the figure in front declares that it is a colossal statue representing Liberty, designed by Bartholdi and built by the Paris firm of Gaget, Gauthier et Cie (Cie is the French abbreviation analogous to Co.) sony vgp-bps9/s battery. A presentation tablet, also bearing Bartholdi's name, declares the statue to be a gift from the people of the Republic of France that honors "the Alliance of the two Nations in achieving the Independence of the United States of America and attests their abiding friendship."[145] There is a tablet placed by the New York committee that commemorates the fundraising done to build the pedestal. The cornerstone also bears a plaque placed by the Freemasons. sony vgp-bps9a/s battery

In 1903, a bronze tablet that bears the text of "The New Colossus" and commemorates Emma Lazarus was presented by friends of the poet. Until the 1986 renovation, it was mounted inside the pedestal; today it resides in the Statue of Liberty Museum in the base. It is accompanied by a tablet given by the Emma Lazarus Commemorative Committee in 1977, celebrating the poet's life. sony vgp-bps9/b battery

A group of statues stands at the western end of the island, honoring those closely associated with the Statue of Liberty. Two Americans—Pulitzer and Lazarus—and three Frenchmen—Bartholdi, Laboulaye, and Eiffel—are depicted. They are the work of Maryland sculptor Phillip Ratner.[146]

In 1984, the Statue of Liberty was designated a UNESCO World Heritage Sitesony vgp-bps9a/b battery. The UNESCO "Statement of Significance" describes the statue as a "masterpiece of the human spirit" that "endures as a highly potent symbol—inspiring contemplation, debate and protest—of ideals such as liberty, peace, human rights, abolition of slavery, democracy and opportunity."[147]

Physical characteristics

Depictions

Main articles: Statue of Liberty in popular culture and Replicas of the Statue of Liberty

A replica of the Statue of Liberty forms part of the exterior decor at the New York-New York Hotel & Casino on the Las Vegas Stripsony vgp-bps9a battery

Hundreds of replicas of the Statue of Liberty are displayed worldwide.[148] A smaller version of the statue, one-fourth the height of the original, was given by the American community in Paris to that city. It now stands on the Île aux Cygnes, facing west toward her larger sister.[148] A replica 30 feet (9.1 m) tall stood atop the Liberty Warehouse on West 64th Street in Manhattan for many years;[148] it now resides at the Brooklyn Museum. sony vgp-bps9b batteryIn a patriotic tribute, the Boy Scouts of America, as part of their Strengthen the Arm of Liberty campaign in 1949–1952, donated about two hundred replicas of the statue, made of stamped copper and 100 inches (2,500 mm) in height, to states and municipalities across the United States.[150] Though not a true replicasony vgp-bpl9 battery, the statue known as the Goddess of Democracy temporarily erected during the Tiananmen Square protests of 1989 was similarly inspired by French democratic traditions—the sculptors took care to avoid a direct imitation of the Statue of Liberty.[151] Among other recreations of New York City structures, a replica of the statue is part of the exterior of the New York-New York Hotel & Casino in Las Vegas, Nevada. sony vgp-bps10 battery

1971 U.S. airmail stamp depicting the head of the Statue of Liberty

Reverse side of a Presidential Dollar coin

As an American icon, the Statue of Liberty has been depicted on the country's coinage and stamps. It appeared on commemorative coins issued to mark its 1986 centennial, and on New York's 2001 entry in the state quarters series.[153] An image of the statue was chosen for the American Eagle platinum bullion coins in 1997, and it was placed on the reverse, or "tails", side of the Presidential Dollar series of circulating coins. Sony VGP-BPS12 Battery Two images of the statue's torch appear on the current ten-dollar bill.[154] The statue's intended photographic depiction on a 2010 forever stamp proved instead to be of the replica at the Las Vegas casino.[155]

Depictions of the statue have been used by many regional institutions. Between 1986 and 2000, New York State issued license plates featuring the statue. Sony VGP-BPL12 Battery The Women's National Basketball Association's New York Liberty use both the statue's name and its image in their logo, in which the torch's flame doubles as a basketball.[158] The New York Rangers of the National Hockey League depicted the statue's head on their third jersey, beginning in 1997.[159] The National Collegiate Athletic Association's 1996 Men's Basketball Final Four, played at New Jersey's Meadowlands Sports Complex, featured the statue in its logo. Sony VGP-BPS13 Battery

The statue is a frequent subject in popular culture. In music, it has been evoked to indicate support for American policies, as in Toby Keith's song "Courtesy of the Red, White, & Blue (The Angry American)", and in opposition, appearing on the cover of The Dead Kennedys' album Bedtime for Democracy, which protested the Reagan administration's policies. Sony VGP-BPS13B/Q battery In film, the torch is the setting for the climax of director Alfred Hitchcock's 1942 movie Saboteur.[162] The statue makes one of its most famous cinematic appearances in the 1968 picture Planet of the Apes, in which it is seen half-buried in sand. It is destroyed in the science-fiction films Independence Day, The Day After Tomorrow, and Cloverfield.[161] In Jack Finney's time-travel novel Time and AgainSony VGP-BPS13/Q battery, the right arm of the statue, on display in the early 1880s in Madison Square Park, plays a crucial role.[164] Robert Holdstock, consulting editor of The Encyclopedia of Science Fiction, wondered in 1979,

Where would [science fiction] be without the Statue of Liberty? For decades it has towered or crumbled above the wastelands of deserted [E]arth—giants have uprooted it, aliens have found it curious ... the symbol of LibertySony VGP-BPS13A/B battery, of optimism, has become a symbol of science fiction's pessimistic view of the future."

Venus is the second planet from the Sun, orbiting it every 224.7 Earth days.[10] The planet is named after Venus, the Roman goddess of love and beauty. After the Moon, it is the brightest natural object in the night sky, reaching an apparent magnitude of −4.6, bright enough to cast shadows.[12] Because Venus is an inferior planet from Earth, it never appears to venture far from the Sun: its elongation reaches a maximum of 47.8°Sony VGP-BPS13/S battery. Venus reaches its maximum brightness shortly before sunrise or shortly after sunset, for which reason it has been known as the Morning Star or Evening Star.

Venus is classified as a terrestrial planet and it is sometimes called Earth's "sister planet" owing to their similar size, gravity, and bulk composition. Venus is covered with an opaque layer of highly reflective clouds of sulfuric acid, preventing its surface from being seen from space in visible light. Venus has the most dense atmosphere of all the terrestrial planets in the Solar SystemSony VGP-BPS13/B battery, consisting of mostly carbon dioxide. The atmospheric pressure at the planet's surface is 92 times that of the Earth. Venus has no carbon cycle to lock carbon back into rocks and surface features, nor does it seem to have any organic life to absorb it in biomass. Venus is believed to have previously possessed oceans,[13] but these evaporated as the temperature rose owing to the runaway greenhouse effect. Sony VGP-BPS13B/S battery The water has most probably photodissociated, and, because of the lack of a planetary magnetic field, the free hydrogen has been swept into interplanetary space by the solar wind.[15] Venus' surface is a dry desertscape with many slab-like rocks, periodically refreshed by volcanism.

Physical characteristics

Venus is one of the four solar terrestrial planets, meaning that, like the Earth, it is a rocky body. In size and mass, it is similar to the Earth, and is often described as Earth's "sister" or "twin".Sony VGP-BPS13A battery The diameter of Venus is 12,092 km (only 650 km less than the Earth's) and its mass is 81.5% of the Earth's. Conditions on the Venusian surface differ radically from those on Earth, owing to its dense carbon dioxide atmosphere. The mass of the atmosphere of Venus is 96.5% carbon dioxide, with most of the remaining 3.5% being nitrogen. Sony VGP-BPS13A/S battery

Geography

The Venusian surface was a subject of speculation until some of its secrets were revealed by planetary science in the 20th century. It was finally mapped in detail by Project Magellan in 1990–91. The ground shows evidence of extensive volcanism, and the sulfur in the atmosphere may indicate there have been some recent eruptions. Sony VGP-BPS13AS battery

About 80% of the Venusian surface is covered by smooth, volcanic plains, consisting of 70% plains with wrinkle ridges and 10% smooth or lobate plains.[20] Two highland "continents" make up the rest of its surface area, one lying in the planet's northern hemisphere and the other just south of the equator. The northern continent is called Ishtar Terra, after Ishtar, the Babylonian goddess of love, and is about the size of Australia. Maxwell Montes, the highest mountain on VenusSony VGP-BPS13S battery, lies on Ishtar Terra. Its peak is 11 km above the Venusian average surface elevation. The southern continent is called Aphrodite Terra, after the Greek goddess of love, and is the larger of the two highland regions at roughly the size of South America. A network of fractures and faults covers much of this area. Sony VGP-BPS13A/Q battery

The absence of evidence of lava flow accompanying any of the visible caldera remains an enigma. The planet has few impact craters, demonstrating the surface is relatively young, approximately 300–600 million years old.[22][23] In addition to the impact craters, mountains, and valleys commonly found on rocky planets, Venus has a number of unique surface featuresSony VGP-BPS13A/R battery. Among these are flat-topped volcanic features called "farra", which look somewhat like pancakes and range in size from 20–50 km across, and 100–1,000 m high; radial, star-like fracture systems called "novae"; features with both radial and concentric fractures resembling spider webs, known as "arachnoids"; and "coronae", circular rings of fractures sometimes surrounded by a depression. These features are volcanic in origin. Sony VGP-BPS13B battery

Most Venusian surface features are named after historical and mythological women.[25] Exceptions are Maxwell Montes, named after James Clerk Maxwell, and highland regions Alpha Regio, Beta Regio and Ovda Regio. The former three features were named before the current system was adopted by the International Astronomical Union, the body that oversees planetary nomenclature. Sony VGP-BPS13B/B battery

The longitudes of physical features on Venus are expressed relative to its prime meridian. The original prime meridian passed through the radar-bright spot at the center of the oval feature Eve, located south of Alpha Regio.[27] After the Venera missions were completed, the prime meridian was redefined to pass through the central peak in the crater Ariadne. Sony VGP-BPL21 battery

Surface geology

Global radar view of the surface from Magellan radar imaging between 1990-1994

Main article: Geology of Venus

Much of the Venusian surface appears to have been shaped by volcanic activity. Venus has several times as many volcanoes as Earth, and it possesses some 167 large volcanoes that are over 100 km across. The only volcanic complex of this size on Earth is the Big Island of Hawaii.[24] This is not because Venus is more volcanically active than Earth, but because its crust is olderSony VGP-BPS21 battery. Earth's oceanic crust is continually recycled by subduction at the boundaries of tectonic plates, and has an average age of about 100 million years,[30] while the Venusian surface is estimated to be 300–600 million years old.

Several lines of evidence point to ongoing volcanic activity on Venus. During the Soviet Venera program, the Venera 11 and Venera 12 probes detected a constant stream of lightning, and Venera 12 recorded a powerful clap of thunder soon after it landedSony VGP-BPS21A battery. The European Space Agency's Venus Express recorded abundant lightning in the high atmosphere.[31] While rainfall drives thunderstorms on Earth, there is no rainfall on the surface of Venus (though it does rain sulfuric acid, in the upper atmosphere, which evaporates around 25 km above the surface)Sony VGP-BPS21B battery. One possibility is ash from a volcanic eruption was generating the lightning. Another piece of evidence comes from measurements of sulfur dioxide concentrations in the atmosphere, which were found to drop by a factor of 10 between 1978 and 1986. This may imply the levels had earlier been boosted by a large volcanic eruption. Sony VGP-BPS26 Battery

Impact craters on the surface of Venus (image reconstructed from radar data)

Almost a thousand impact craters on Venus are evenly distributed across its surface. On other cratered bodies, such as the Earth and the Moon, craters show a range of states of degradation. On the Moon, degradation is caused by subsequent impacts, while on Earth, it is caused by wind and rain erosion. On Venus, about 85% of the craters are in pristine conditionSony VGP-BPS26A Battery. The number of craters, together with their well-preserved condition, indicates the planet underwent a global resurfacing event about 300–600 million years ago,[22][23] followed by a decay in volcanism.[33] Earth's crust is in continuous motion, Venus is thought to be unable to sustain such a process. Without plate tectonics to dissipate heat from its mantleSony VGP-BPS13 battery(without CD), Venus instead undergoes a cyclical process in which mantle temperatures rise until they reach a critical level that weakens the crust. Then, over a period of about 100 million years, subduction occurs on an enormous scale, completely recycling the crust.[24]

Venusian craters range from 3 km to 280 km in diameter. No craters are smaller than 3 km, because of the effects of the dense atmosphere on incoming objects. Objects with less than a certain kinetic energy are slowed down so much by the atmosphereSony VGP-BPS13B/Q battery(without CD), they do not create an impact crater.[34] Incoming projectiles less than 50 meters in diameter will fragment and burn up in the atmosphere before reaching the ground.[35]

Internal structure

Without seismic data or knowledge of its moment of inertia, little direct information is available about the internal structure and geochemistry of Venus.[36] The similarity in size and density between Venus and Earth suggests they share a similar internal structure: a core, mantle, and crust. Like that of EarthSony VGP-BPS13/Q battery(without CD), the Venusian core is at least partially liquid because the two planets have been cooling at about the same rate.[37] The slightly smaller size of Venus suggests pressures are significantly lower in its deep interior than Earth. The principal difference between the two planets is the lack of evidence for plate tectonics on Venus, possibly because its crust is too strong to subduct without water to make it less viscousSony VGP-BPS13A/B battery(without CD). This results in reduced heat loss from the planet, preventing it from cooling and providing a likely explanation for its lack of an internally generated magnetic field.[38] Instead, Venus may lose its internal heat in periodic major resurfacing events.[22]

Main article: Atmosphere of Venus

Cloud structure in the Venusian atmosphere in 1979, revealed by ultraviolet observations by Pioneer Venus OrbiterSony VGP-BPS13/S battery(without CD)

Venus has an extremely dense atmosphere, which consists mainly of carbon dioxide and a small amount of nitrogen. The atmospheric mass is 93 times that of Earth's atmosphere, while the pressure at the planet's surface is about 92 times that at Earth's surface—a pressure equivalent to that at a depth of nearly 1 kilometer under Earth's oceans. The density at the surface is 65 kg/m³ (6.5% that of water) Sony VGP-BPS13/B battery(without CD). The CO2-rich atmosphere, along with thick clouds of sulfur dioxide, generates the strongest greenhouse effect in the Solar System, creating surface temperatures of over 460 °C (860 °F).[39] This makes the Venusian surface hotter than Mercury's, which has a minimum surface temperature of −220 °C and maximum surface temperature of 420 °C,[40] even though Venus is nearly twice Mercury's distance from the Sun and thus receives only 25% of Mercury's solar irradianceSony VGP-BPS13B/S battery(without CD). The surface of Venus is often said to resemble traditional accounts of Hell.[41]

Studies have suggested that billions of years ago, the Venusian atmosphere was much more like Earth's than it is now, and that there were probably substantial quantities of liquid water on the surface, but, after a period of 600 million to several billion years,[42] a runaway greenhouse effect was caused by the evaporation of that original water, which generated a critical level of greenhouse gases in its atmosphere. Sony VGP-BPS13A battery(without CD) Although the surface conditions on the planet are no longer hospitable to any Earthlike life that may have formed prior to this event, the possibility that a habitable niche still exists in the lower and middle cloud layers of Venus can not yet be excluded.[44]

Thermal inertia and the transfer of heat by winds in the lower atmosphere mean that the temperature of the Venusian surface does not vary significantly between the night and day sides, despite the planet's extremely slow rotationSony VGP-BPS13A/S battery(without CD). Winds at the surface are slow, moving at a few kilometers per hour, but because of the high density of the atmosphere at the Venusian surface, they exert a significant amount of force against obstructions, and transport dust and small stones across the surface. This alone would make it difficult for a human to walk through, even if the heat and lack of oxygen were not a problem. Sony VGP-BPS13AS battery(without CD)

Above the dense CO2 layer are thick clouds consisting mainly of sulfur dioxide and sulfuric acid droplets.[46][47] These clouds reflect and scatter about 90% of the sunlight that falls on them back into space, and prevent visual observation of the Venusian surface. The permanent cloud cover means that although Venus is closer than Earth to the SunSony VGP-BPS13S battery(without CD), the Venusian surface is not as well lit. Strong 300 km/h winds at the cloud tops circle the planet about every four to five earth days.[48] Venusian winds move at up to 60 times the speed of the planet's rotation, while Earth's fastest winds are only 10% to 20% rotation speed.[49]

The surface of Venus is effectively isothermal; it retains a constant temperature not only between day and night but between the equator and the poles. Sony VGP-BPS13A/Q battery(without CD) The planet's minute axial tilt (less than three degrees, compared with 23 degrees for Earth), also minimizes seasonal temperature variation.[51] The only appreciable variation in temperature occurs with altitude. In 1995, the Magellan probe imaged a highly reflective substance at the tops of the highest mountain peaks that bore a strong resemblance to terrestrial snow. This substance arguably formed from a similar process to snow, albeit at a far higher temperatureSony VGP-BPS13A/R battery(without CD). Too volatile to condense on the surface, it rose in gas form to cooler higher elevations, where it then fell as precipitation. The identity of this substance is not known with certainty, but speculation has ranged from elemental tellurium to lead sulfide (galena).[52]

The clouds of Venus are capable of producing lightning much like the clouds on Earth.[53] The existence of lightning had been controversial since the first suspected bursts were detected by the Soviet Venera probesSony VGP-BPS13AB battery(without CD). In 2006–07 Venus Express clearly detected whistler mode waves, the signatures of lightning. Their intermittent appearance indicates a pattern associated with weather activity. The lightning rate is at least half of that on Earth.[53] In 2007 the Venus Express probe discovered that a huge double atmospheric vortex exists at the south pole of the planet. Sony VGP-BPS13B battery(without CD)

Another discovery made by the Venus Express probe in 2011 is that an ozone layer exists high in the atmosphere of Venus.[56]

Magnetic field and core

Size comparison of terrestrial planets (left to right): Mercury, Venus, Earth, and Mars

In 1967, Venera-4 found the Venusian magnetic field is much weaker than that of Earth. This magnetic field is induced by an interaction between the ionosphere and the solar wind, rather than by an internal dynamo in the core like the one inside the EarthSony VGP-BPS13B/B battery(without CD). Venus's small induced magnetosphere provides negligible protection to the atmosphere against cosmic radiation. This radiation may result in cloud-to-cloud lightning discharges.[59]

The lack of an intrinsic magnetic field at Venus was surprising given it is similar to Earth in size, and was expected also to contain a dynamo at its core. A dynamo requires three things: A conducting liquid, rotation, and convectionSony VGP-BPL21 battery(without CD). The core is thought to be electrically conductive and, while its rotation is often thought to be too slow, simulations show it is adequate to produce a dynamo.[60][61] This implies the dynamo is missing because of a lack of convection in the Venusian core. On Earth, convection occurs in the liquid outer layer of the core because the bottom of the liquid layer is much hotter than the topSony VGP-BPS21 battery(without CD). On Venus, a global resurfacing event may have shut down plate tectonics and led to a reduced heat flux through the crust. This caused the mantle temperature to increase, thereby reducing the heat flux out of the core. As a result, no internal geodynamo is available to drive a magnetic field. Instead, the heat energy from the core is being used to reheat the crust. Sony VGP-BPS21A battery(without CD)

One possibility is Venus has no solid inner core,[63] or its core is not currently cooling, so the entire liquid part of the core is at approximately the same temperature. Another possibility is its core has already completely solidified. The state of the core is highly dependent on the concentration of sulfur, which is unknown at present. Sony VGP-BPS21B battery(without CD)

The weak magnetosphere around Venus means the solar wind is interacting directly with the outer atmosphere of the planet. Here, ions of hydrogen and oxygen are being created by the dissociation of neutral molecules from ultraviolet radiation. The solar wind then supplies energy that gives some of these ions sufficient velocity to escape the planet's gravity fieldSony VGP-BPS14/B Battery. This erosion process results in a steady loss of low-mass hydrogen, helium, and oxygen ions, while higher-mass molecules, such as carbon dioxide, are more likely to be retained. Atmospheric erosion by the solar wind most probably led to the loss of most of the planet's water during the first billion years after it formed. The erosion has increased the ratio of higher-mass deuterium to lower-mass hydrogen in the upper atmosphere by a multiple of 150 times the ratio in the lower atmosphere. Sony VGP-BPS14B Battery

Orbit and rotation

Venus orbits the Sun at an average distance of about 108 million kilometers (about 0.7 AU) and completes an orbit every 224.65 days. Venus is the second planet from the Sun and it revolves round the Sun approximately 1.6 times (yellow trail) in Earth's 365 days (blue trail)

Venus orbits the Sun at an average distance of about 0.72 AU (108,000,000 km; 67,000,000 mi), and completes an orbit every 224.65 daysSony VGP-BPS14/S Battery. Although all planetary orbits are elliptical, Venus is the closest to circular, with an eccentricity of less than 0.01.[2] When Venus lies between the Earth and the Sun, a position known as inferior conjunction, it makes the closest approach to Earth of any planet at an average distance of 41 million km.[2] The planet reaches inferior conjunction every 584 days, on average. Sony VGP-BPL14/B BatteryOwing to the decreasing eccentricity of Earth's orbit, the minimum distances will become greater over tens of thousands of years. From the year 1 to 5383, 526 approaches less than 40 million km happen; then happen none for about 60,158 years.[65] During periods of greater eccentricity, Venus can come as close as 38.2 million km. Sony VGP-BPL14 Battery

All the planets of the Solar System orbit the Sun in a counter-clockwise direction as viewed from above the Sun's north pole. Most planets also rotate on their axis in a counter-clockwise direction, but Venus rotates clockwise (called "retrograde" rotation) once every 243 Earth days—by far the slowest rotation period of any major planet. The equator of the Venusian surface rotates at 6.5 km/hSony VGP-BPL14B Battery, while on Earth rotation speed at the equator is about 1,670 km/h.[66] A Venusian sidereal day thus lasts longer than a Venusian year (243 versus 224.7 Earth days). Because of the retrograde rotation, the length of a solar day on Venus is significantly shorter than the sidereal day. As a result of Venus's relatively long solar day, one Venusian year is about 1.92 Venusian days long. Sony VGP-BPL14/S Battery To an observer on the surface of Venus, the Sun would appear to rise in the west and set in the east and the time from one sunrise to the next would be 116.75 Earth days (making the Venusian solar day shorter than Mercury's 176 Earth days).[11]

Venus may have formed from the solar nebula with a different rotation period and obliquity, reaching to its current state because of chaotic spin changes caused by planetary perturbations and tidal effects on its dense atmosphereSony VGP-BPS14 Battery, a change that would have occurred over the course of billions of years. The rotation period of Venus may represent an equilibrium state between tidal locking to the Sun's gravitation, which tends to slow rotation, and an atmospheric tide created by solar heating of the thick Venusian atmosphere. A curious aspect of the Venusian orbit and rotation periods is the 584-day average interval between successive close approaches to the Earth is almost exactly equal to five Venusian solar days. Sony VGP-BPL15/B Battery However, the hypothesis of a spin–orbit resonance with Earth has been discounted.[70]

Venus currently has no natural satellite,[71] though the asteroid 2002 VE68 presently maintains a quasi-orbital relationship with it.[72] In the 17th century, Giovanni Cassini reported a moon orbiting Venus, which was named Neith and numerous sightings were reported over the following 200 years, but most were determined to be stars in the vicinitySony VGP-BPS15/B Battery. Alex Alemi's and David Stevenson's 2006 study of models of the early Solar System at the California Institute of Technology shows Venus likely had at least one moon created by a huge impact event billions of years ago.[73][74] About 10 million years later, according to the study, another impact reversed the planet's spin direction and caused the Venusian moon gradually to spiral inwardSony VGP-BPL15/S Battery until it collided and merged with Venus. If later impacts created moons, these also were absorbed in the same way. An alternative explanation for the lack of satellites is the effect of strong solar tides, which can destabilize large satellites orbiting the inner terrestrial planets.[71]

Observation

Venus is always brighter than the brightest stars outside our solar system, as can be seen here over the Pacific OceanSony VGP-BPS15/S Battery

Phases of Venus and evolution of its apparent diameter

Venus is always brighter than any star (apart from the Sun). The greatest luminosity, apparent magnitude −4.9,[8] occurs during crescent phase when it is near the Earth. Venus fades to about magnitude −3 when it is backlit by the Sun.[7] The planet is bright enough to be seen in a mid-day clear sky,[76] and the planet can be easy to see when the Sun is low on the horizonSony VGP-BPS15 Battery. As an inferior planet, it always lies within about 47° of the Sun.[9]

Venus "overtakes" the Earth every 584 days as it orbits the Sun.[2] As it does so, it changes from the "Evening Star", visible after sunset, to the "Morning Star", visible before sunrise. While Mercury, the other inferior planet, reaches a maximum elongation of only 28° and is often difficult to discern in twilight, Venus is hard to miss when it is at its brightest. Its greater maximum elongation means it is visible in dark skies long after sunsetSony VGP-BPS18 battery. As the brightest point-like object in the sky, Venus is a commonly misreported "unidentified flying object". U.S. President Jimmy Carter reported having seen a UFO in 1969, which later analysis suggested was probably the planet. Countless other people have mistaken Venus for something more exotic. Sony VGP-BPS22 Battery

As it moves around its orbit, Venus displays phases in a telescopic view like those of the Moon: In the phases of Venus, the planet presents a small "full" image when it is on the opposite side of the Sun. It shows a larger "quarter phase" when it is at its maximum elongations from the Sun, and is at its brightest in the night sky, and presents a much larger "thin crescent" in telescopic views as it comes around to the near side between the Earth and the Sun Sony VPCCA15FA/B Battery. Venus is at its largest and presents its "new phase" when it is between the Earth and the Sun. Its atmosphere can be seen in a telescope by the halo of light refracted around the planet.[9]

2004 transit of Venus

Main articles: Transits of Venus and Transit of Venus, 2012

The Venusian orbit is slightly inclined relative to the Earth's orbit; thus, when the planet passes between the Earth and the Sun, it usually does not cross the face of the Sun. Transits of Venus do occur when the planet's inferior conjunction coincides with its presence in the plane of the Earth's orbitSony VPCCA15FA/G Battery. Transits of Venus occur in cycles of 243 years with the current pattern of transits being pairs of transits separated by eight years, at intervals of about 105.5 years or 121.5 years—a pattern first discovered in 1639 by English astronomer Jeremiah Horrocks.[78]

The latest pair was June 8, 2004 and June 5–6, 2012. The transit could be watched live from many online outlets or observed locally with the right equipment and conditions. Sony VPCCA15FA/L Battery

The preceding pair of transits occurred in December 1874 and December 1882; the following pair will occur in December 2117 and December 2125.[80] Historically, transits of Venus were important, because they allowed astronomers to directly determine the size of the astronomical unit, and hence the size of the Solar System as shown by Horrocks in 1639. Sony VPCCA15FA/P Battery Captain Cook's exploration of the east coast of Australia came after he had sailed to Tahiti in 1768 to observe a transit of Venus.

Ashen light

A long-standing mystery of Venus observations is the so-called ashen light—an apparent weak illumination of the dark side of the planet, seen when the planet is in the crescent phase. The first claimed observation of ashen light was made as long ago as 1643Sony VPCCA15FA/W Battery, but the existence of the illumination has never been reliably confirmed. Observers have speculated it may result from electrical activity in the Venusian atmosphere, but it may be illusory, resulting from the physiological effect of observing a bright, crescent-shaped object.[84]

The "black drop effect" as recorded during the 1769 transit

Venus was known to ancient civilizations both as the "morning star" and as the "evening star", names that reflect the early understanding that these were two separate objectsSony VPCEH1AJ Battery. The Venus tablet of Ammisaduqa, dated 1581 BC, shows the Babylonians understood the two were a single object, referred to in the tablet as the "bright queen of the sky," and could support this view with detailed observations.[85] The Greeks thought of the two as separate stars, Phosphorus and Hesperus, until the time of Pythagoras in the sixth century BC. Sony VPCEH1E1E BatteryThe Romans designated the morning aspect of Venus as Lucifer, literally "Light-Bringer", and the evening aspect as Vesper.

The first recorded observation of a transit of Venus was made by Jeremiah Horrocks on December 4, 1639 (November 24 under the Julian calendar in use at that time), along with his friend, William Crabtree, at each of their respective homes. Sony VPCEH1J1E Battery

Galileo's discovery that Venus showed phases (while remaining near the Sun in our sky) proved that it orbits the Sun and not the Earth

When the Italian physicist Galileo Galilei first observed the planet in the early 17th century, he found it showed phases like the Moon, varying from crescent to gibbous to full and vice versa. When Venus is furthest from the Sun in the skySony VPCEH1J8E Battery, it shows a half-lit phase, and when it is closest to the Sun in the sky, it shows as a crescent or full phase. This could be possible only if Venus orbited the Sun, and this was among the first observations to clearly contradict the Ptolemaic geocentric model that the Solar System was concentric and centered on the Earth.Sony VPCEH1L0E Battery

The atmosphere of Venus was discovered in 1761 by Russian polymath Mikhail Lomonosov. Venus's atmosphere was observed in 1790 by German astronomer Johann Schröter. Schröter found when the planet was a thin crescent, the cusps extended through more than 180°. He correctly surmised this was due to scattering of sunlight in a dense atmosphereSony VPCEH1L8E Battery. Later, American astronomer Chester Smith Lyman observed a complete ring around the dark side of the planet when it was at inferior conjunction, providing further evidence for an atmosphere.[91] The atmosphere complicated efforts to determine a rotation period for the planet, and observers such as Italian-born astronomer Giovanni Cassini and Schröter incorrectly estimated periods of about 24 hours from the motions of markings on the planet's apparent surface. Sony VPCEH1L9E Battery

Ground-based research

Modern telescopic view of Venus from Earth's surface

Little more was discovered about Venus until the 20th century. Its almost featureless disc gave no hint what its surface might be like, and it was only with the development of spectroscopic, radar and ultraviolet observations that more of its secrets were revealed. The first UV observations were carried out in the 1920s, when Frank E. Ross found that UV photographs revealed considerable detail that was absent in visible and infrared radiationSony VPCEH1M1E Battery. He suggested this was due to a very dense, yellow lower atmosphere with high cirrus clouds above it.[93]

Spectroscopic observations in the 1900s gave the first clues about the Venusian rotation. Vesto Slipher tried to measure the Doppler shift of light from Venus, but found he could not detect any rotation. He surmised the planet must have a much longer rotation period than had previously been thought. Sony VPCEH1M9E Battery Later work in the 1950s showed the rotation was retrograde. Radar observations of Venus were first carried out in the 1960s, and provided the first measurements of the rotation period which were close to the modern value.[95]

Radar observations in the 1970s revealed details of the Venusian surface for the first time. Pulses of radio waves were beamed at the planet using the 300-m radio telescope at Arecibo ObservatorySony VPCEH1S0E Battery, and the echoes revealed two highly reflective regions, designated the Alpha and Beta regions. The observations also revealed a bright region attributed to mountains, which was called Maxwell Montes.[96] These three features are now the only ones on Venus which do not have female names.[97]

Main article: Observations and explorations of Venus

The first robotic space probe mission to Venus, and the first to any planet, began on February 12, 1961, with the launch of the Venera 1 probeSony VPCEH1S1E Battery. The first craft of the otherwise highly successful Soviet Venera program, Venera 1 was launched on a direct impact trajectory, but contact was lost seven days into the mission, when the probe was about 2 million km from Earth. It was estimated to have passed within 100,000 km of Venus in mid-May.[98]

The United States exploration of Venus also started badly with the loss of the Mariner 1 probe on launchSony VPCEH1S8E Battery. The subsequent Mariner 2 mission enjoyed greater success, and after a 109-day transfer orbit on December 14, 1962, it became the world's first successful interplanetary mission, passing 34,833 km above the surface of Venus. Its microwave and infrared radiometers revealed that while the Venusian cloud tops were cool, the surface was extremely hot—at least 425°C, finally ending any hopes that the planet might harbor ground-based lifeSony VPCEH1S9E Battery. Mariner 2 also obtained improved estimates of its mass and of the astronomical unit, but was unable to detect either a magnetic field or radiation belts.[99]

Pioneer Venus Multiprobe

The Soviet Venera 3 probe crash-landed on Venus on March 1, 1966. It was the first man-made object to enter the atmosphere and strike the surface of another planet, though its communication system failed before it was able to return any planetary data.[100] On October 18, 1967, Venera 4 successfully entered the atmosphere and deployed a number of science experimentsSony VPCEH1Z1E Battery. Venera 4 showed the surface temperature was even hotter than Mariner 2 had measured at almost 500°C, and the atmosphere was about 90 to 95% carbon dioxide. The Venusian atmosphere was considerably denser than Venera 4's designers had anticipated, and its slower than intended parachute descent meant its batteries ran down before the probe reached the surface. After returning descent data for 93 minutes, Venera 4's last pressure reading was 18 bar at an altitude of 24.96 km. Sony VPCEH2C0E Battery

One day later on October 19, 1967, Mariner 5 conducted a fly-by at a distance of less than 4000 km above the cloud tops. Mariner 5 was originally built as backup for the Mars-bound Mariner 4, but when that mission was successful, the probe was refitted for a Venus mission. A suite of instruments more sensitive than those on Mariner 2, in particular its radio occultation experiment, returned data on the compositionSony VPCEH2D0E Battery, pressure and density of the Venusian atmosphere.[101] The joint Venera 4 – Mariner 5 data were analyzed by a combined Soviet-American science team in a series of colloquia over the following year,[102] in an early example of space cooperation.[103]

Armed with the lessons and data learned from Venera 4, the Soviet Union launched the twin probes Venera 5 and Venera 6 five days apart in January 1969Sony VPCEH2E0E Battery; they encountered Venus a day apart on May 16 and 17 that year. The probes were strengthened to improve their crush depth to 25 bar and were equipped with smaller parachutes to achieve a faster descent. Since then-current atmospheric models of Venus suggested a surface pressure of between 75 and 100 bar, neither was expected to survive to the surfaceSony VPCEH2F1E Battery. After returning atmospheric data for a little over 50 minutes, they both were crushed at altitudes of approximately 20 km before going on to strike the surface on the night side of Venus.[100]

Surface and atmospheric science

Venera 7 represented an effort to return data from the planet's surface, and was constructed with a reinforced descent module capable of withstanding a pressure of 180 bar. The module was precooled before entry and equipped with a specially reefed parachute for a rapid 35-minute descentSony VPCEH2H1E Battery. While entering the atmosphere on December 15, 1970, the parachute is believed to have partially torn, and the probe struck the surface with a hard, yet not fatal, impact. Probably tilted onto its side, it returned a weak signal, supplying temperature data for 23 minutes, the first telemetry received from the surface of another planet.[100]

The Venera program continued with Venera 8 sending data from the surface for 50 minutes, after entering the atmosphere on July 22, 1972Sony VPCEH2J1E Battery. Venera 9, which entered the atmosphere of Venus on October 22, 1975, and Venera 10, which entered the atmosphere three days later on October 25, sent the first images of the Venusian landscape. The two landing sites presented very different terrains in the immediate vicinities of the landers: Venera 9 had landed on a 20-degree slope scattered with boulders around 30–40 cm across; Venera 10 showed basalt-like rock slabs interspersed with weathered material. Sony VPCEH2L9E Battery

In the meantime, the United States had sent the Mariner 10 probe on a gravitational slingshot trajectory past Venus on its way to Mercury. On February 5, 1974, Mariner 10 passed within 5790 km of Venus, returning over 4000 photographs as it did so. The images, the best then achieved, showed the planet to be almost featureless in visible light, but ultraviolet light revealed details in the clouds that had never been seen in Earth-bound observations. Sony VPCEH2M1E Battery

The American Pioneer Venus project consisted of two separate missions.[106] The Pioneer Venus Orbiter was inserted into an elliptical orbit around Venus on December 4, 1978, and remained there for over 13 years, studying the atmosphere and mapping the surface with radar. The Pioneer Venus Multiprobe released a total of four probes which entered the atmosphere on December 9, 1978, returning data on its composition, winds and heat fluxes. Sony VPCEH2M9E Battery

Venera 13 landing site

Four more Venera lander missions took place over the next four years, with Venera 11 and Venera 12 detecting Venusian electrical storms;[108] and Venera 13 and Venera 14, landing four days apart on March 1 and March 5, 1982, returning the first color photographs of the surface. All four missions deployed parachutes for braking in the upper atmosphereSony VPCEH2N1E Battery, but released them at altitudes of 50 km, the dense lower atmosphere providing enough friction to allow for unaided soft landings. Both Venera 13 and 14 analyzed soil samples with an on-board X-ray fluorescence spectrometer, and attempted to measure the compressibility of the soil with an impact probe.[108] Venera 14, though, had the misfortune to strike its own ejected camera lens cap and its probe failed to contact the soil.Sony VPCEH2P0E Battery The Venera program came to a close in October 1983, when Venera 15 and Venera 16 were placed in orbit to conduct mapping of the Venusian terrain with synthetic aperture radar.[109]

In 1985, the Soviet Union took advantage of the opportunity to combine missions to Venus and Comet Halley, which passed through the inner Solar System that year. En route to Halley, on June 11 and June 15, 1985Sony VPCEH2Q1E Battery, the two spacecraft of the Vega program each dropped a Venera-style probe (of which Vega 1's partially failed) and released a balloon-supported aerobot into the upper atmosphere. The balloons achieved an equilibrium altitude of around 53 km, where pressure and temperature are comparable to those at Earth's surface. They remained operational for around 46 hoursSony VPCEH2S9E Battery, and discovered the Venusian atmosphere was more turbulent than previously believed, and subject to high winds and powerful convection cells.

Radar mapping

Magellan radar topographical map of Venus (false color)

Early Earth-based radar provided a basic idea of the surface. The Pioneer Venus and the Veneras provided improved resolution.

The United States' Magellan probe was launched on May 4, 1989, with a mission to map the surface of Venus with radar.[26] The high-resolution images it obtained during its 4½ years of operation far surpassed all prior maps and were comparable to visible-light photographs of other planetsSony VPCEH2Z1E Battery. Magellan imaged over 98% of the Venusian surface by radar,[112] and mapped 95% of its gravity field. In 1994, at the end of its mission, Magellan was sent to its destruction into the atmosphere of Venus to quantify its density.[113] Venus was observed by the Galileo and Cassini spacecraft during fly-bys on their respective missions to the outer planets, but Magellan would be the last dedicated mission to Venus for over a decade. Sony VPCEH3B1E Battery

Current and future missions

NASA's MESSENGER mission to Mercury performed two fly-bys of Venus in October 2006 and June 2007, to slow its trajectory for an eventual orbital insertion of Mercury in March 2011. MESSENGER collected scientific data on both those fly-bys.[116]

The Venus Express probe was designed and built by the European Space Agency. Launched on November 9, 2005 by a Russian Soyuz-Fregat rocket procured through StarsemSony VPCEH3D0E Battery, it successfully assumed a polar orbit around Venus on April 11, 2006.[117] The probe is undertaking a detailed study of the Venusian atmosphere and clouds, including mapping of the planet's plasma environment and surface characteristics, particularly temperatures. One of the first results emerging from Venus Express is the discovery that a huge double atmospheric vortex exists at the south pole of the planet. Sony VPCEH3N1E Battery

Artist's impression of a Stirling cooled Venus Rover devised by NASA.[118]

The Japan Aerospace Exploration Agency (JAXA) devised a Venus orbiter, Akatsuki (formerly "Planet-C"), which was launched on May 20, 2010, but the craft failed to enter orbit in December 2010. Hopes remain that the probe can successfully hibernate and make another insertion attempt in six years. Planned investigations included surface imaging with an infrared camera and experiments designed to confirm the presence of lightningSony VPCEH3N6E Battery, as well as the determination of the existence of current surface volcanism.[119]

The European Space Agency (ESA) hopes to launch a mission to Mercury in 2014, called BepiColombo, which will perform two fly-bys of Venus before it reaches Mercury orbit in 2020.[120]

Under its New Frontiers Program, NASA has proposed a lander mission called the Venus In-Situ Explorer to land on Venus to study surface conditions and investigate the elemental and mineralogical features of the regolithSony VPCEH3T9E Battery. The probe would be equipped with a core sampler to drill into the surface and study pristine rock samples not weathered by the harsh surface conditions. A Venus atmospheric and surface probe mission, "Surface and Atmosphere Geochemical Explorer" (SAGE), was selected by NASA as a candidate mission study in the 2009 New Frontiers selection,[121] but the mission was not selected for flightSony VPCEJ1E1E Battery.

The Venera-D (Russian: Венера-Д) probe is a proposed Russian space probe to Venus, to be launched around 2016, with its goal to make remote-sensing observations around the planet Venus and deploying a lander, based on the Venera design, capable of surviving for a long duration on the planet's surface. Other proposed Venus exploration concepts include rovers, balloons, and airplanes. Sony VPCEJ1J1E Battery

Manned fly-by concept

Main article: Manned Venus Fly-by

A manned Venus fly-by mission, using Apollo program hardware, was proposed in the late 1960s.[123] The mission was planned to launch in late October or early November 1973, and would have used a Saturn V to send three men to fly past Venus in a flight lasting approximately one year. The spacecraft would have passed approximately 5,000 kilometres from the surface of Venus about four months later. Sony VPCEJ1L1E Battery

Spacecraft timeline

This is a list of attempted and successful spacecraft that have left Earth to explore Venus more closely.[124] Venus has also been imaged by the Hubble Space Telescope in Earth orbit, and distant telescopic observations is another source of information about Venus.Cultural understandingsSony VPCEJ1M1E Battery

As one of the brightest objects in the sky, Venus has been known since prehistoric times and as such has gained an entrenched position in human culture. It is described in Babylonian cuneiformic texts such as the Venus tablet of Ammisaduqa, which relates observations that possibly date from 1600 BC.[128] The Babylonians named the planet Ishtar (Sumerian Inanna), the personification of womanhood, and goddess of love. Sony VPCEJ1S1E Battery She had a dual role as a goddess of war, thereby representing a deity that presided over birth and death.[130]

The Ancient Egyptians believed Venus to be two separate bodies and knew the morning star as Tioumoutiri and the evening star as Ouaiti.[131] Likewise, believing Venus to be two bodies, the Ancient Greeks called the morning star Φωσφόρος, Phosphoros (Latinized Phosphorus), the "Bringer of Light" or Ἐωσφόρος, Eosphoros (Latinized Eosphorus), the "Bringer of Dawn"Sony VPCEJ1Z1E Battery. The evening star they called Hesperos (Latinized Hesperus) (Ἓσπερος, the "star of the evening"). By Hellenistic times, the ancient Greeks realized the two were the same planet, which they named after their goddess of love, Aphrodite (Phoenician Astarte).[134] Hesperos would be translated into Latin as Vesper and Phosphoros as Lucifer ("Light Bearer"), a poetic term later used to refer to the fallen angel cast out of heaven. Sony VPCEJ2B1E BatteryThe Romans, who derived much of their religious pantheon from the Greek tradition, named the planet Venus after their goddess of love.[135] Pliny the Elder (Natural History, ii,37) identified the planet Venus with Isis.[136]

In Iranian mythology, especially in Persian mythology, the planet usually corresponds to the goddess Anahita. In some parts of Pahlavi literature the deities Aredvi Sura and Anahita are regarded as separate entitiesSony VPCEJ2D1E Battery, the first one as a personification of the mythical river and the latter as a goddess of fertility which is associated with the planet Venus. As the goddess Aredvi Sura Anahita—and simply called Anahita as well—both deities are unified in other descriptions, e. g. in the Greater Bundahishn, and are represented by the planet. In the Avestan text Mehr Yasht (Yasht 10) there is a possible early link to MithraSony VPCEJ2E1E Battery. The Persian name of the planet today is "Nahid" which derives from Anahita and later in history from the Pahlavi language Anahid.

Rooftop observers of the 2012 Venus transit, in Prague, Czech Republic

The planet Venus was important to the Maya civilization, who developed a religious calendar based in part upon its motions, and held the motions of Venus to determine the propitious time for events such as war. They named it Noh Ek', the Great StarSony VPCEJ2J1E Battery, and Xux Ek', the Wasp Star. The Maya were aware of the planet's synodic period, and could compute it to within a hundredth part of a day.[141]

The Maasai people named the planet Kileken, and have an oral tradition about it called The Orphan Boy.[142]

Venus is important in many Australian aboriginal cultures, such as that of the Yolngu people in Northern Australia. The Yolngu gather after sunset to await the rising of Venus, which they call Barnumbirr. As she approaches, in the early hours before dawnSony VPCEJ2L1E Battery, she draws behind her a rope of light attached to the Earth, and along this rope, with the aid of a richly decorated "Morning Star Pole", the people are able to communicate with their dead loved ones, showing that they still love and remember them. Barnumbirr is also an important creator-spirit in the Dreaming, and "sang" much of the country into life. Sony VPCEJ2S1E Battery

Venus plays a prominent role in Pawnee mythology. The Pawnee, a North American native tribe, until as late as 1838, practiced a morning star ritual in which a girl was sacrificed to the morning star.[144] In the metaphysical system of Theosophy, it is believed that on the etheric plane of Venus there is a civilization that existed hundreds of millions of years before Earth's[145] and it is also believed that the governing deity of Earth, Sanat Kumara, is from Venus. Sony VPCEJ2Z1E Battery

See also: Venus (mythology) and Venus (astrology)

In literature

Main article: Venus in fiction

The impenetrable Venusian cloud cover gave science fiction writers free rein to speculate on conditions at its surface; all the more so when early observations showed that not only was it similar in size to Earth, it possessed a substantial atmosphere. Closer to the Sun than Earth, the planet was frequently depicted as warmer, but still habitable by humans.Sony VPCEJ3T1E Battery The genre reached its peak between the 1930s and 1950s, at a time when science had revealed some aspects of Venus, but not yet the harsh reality of its surface conditions. Findings from the first missions to Venus showed the reality to be quite different, and brought this particular genre to an end.[148] As scientific knowledge of Venus advanced, so science fiction authors endeavored to keep pace, particularly by conjecturing human attempts to terraform Venus. Sony VPCEJM1E Battery

Perhaps the strangest appearance of Venus in literature is as the harbinger of destruction in Immanuel Velikovsky's Worlds in Collision (1950). In this intensely controversial book, Velikovsky argued that many seemingly unbelievable stories in the Old Testament are true recollections of times when Venus nearly collided with the Earth Sony VPCEL1E1E Battery— when it was still a comet and had not yet become the docile planet that we know today. He contended that Venus caused most of the strange events of the Exodus. He cites legends in many other cultures (such as Greek, Mexican, Chinese and Indian) indicating that the effects of the near-collision were global. The scientific community rejected his wildly unorthodox book, but it became a bestsellerSony VPCEL2S1E Battery.

 
Zebras are several species of African equids (horse family) united by their distinctive black and white stripes. Their stripes come in different patterns unique to each individual. They are generally social animals that live in small harems to large herds. Unlike their closest relatives, horses and asses, zebras have never been truly domesticatedSony VAIO PCG-31114V battery.

There are three species of zebras: the plains zebra, the Grévy's zebra and the mountain zebra. The plains zebra and the mountain zebra belong to the subgenus Hippotigris, but Grevy's zebra is the sole species of subgenus Dolichohippus. The latter resembles an ass, to which it is closely related, while the former two are more horse-like. All three belong to the genus Equus, along with other living equidsSony VAIO PCG-31113V battery.

The unique stripes of zebras make these among the animals most familiar to people. They occur in a variety of habitats, such as grasslands, savannas, woodlands, thorny scrublands, mountains, and coastal hills. However, various anthropogenic factors have had a severe impact on zebra populations, in particular hunting for skins and habitat destructionSony VAIO PCG-31112V battery. Grevy's zebra and the mountain zebra are endangered. While plains zebras are much more plentiful, one subspecies, the quagga, went extinct in the late 19th century, though there is currently a project, called the Quagga Project, that aims to breed zebras that are phenotypically similar to the quagga in a process called breeding backSony VAIO PCG-31111V battery.

Etymology

Zebra in English dates back to c.1600, from Italian Zebra, perhaps from Portuguese, which in turn is said to be Congolese (as stated in the Oxford English Dictionary). The Encarta Dictionary says its ultimate origin is uncertain, but perhaps it may come from Latin Equiferus meaning "Wild horse," from equus "horse" and ferus "wild, untamed"Sony VAIO PCG-31114M battery.

Taxonomy and evolution

See also: Horse evolution

Zebras evolved among the Old World horses within the last 4 million years. Grevy's zebras (and perhaps also Mountain Zebras) are with asses and donkeys in a separate lineage from the other zebra lineages.[2] This means either that striped equids evolved more than once, or that common ancestors of zebras and asses were striped and only zebras retained the stripesSony VAIO PCG-31113M battery. Extensive stripes are posited to have been of little use to equids that live in low densities in deserts (like asses and some horses) or ones that live in colder climates with shaggy coats and annual shading (like some horses).

Fossils of an ancient equid were discovered in the Hagerman Fossil Beds National Monument in Hagerman, Idaho. It was named the Hagerman horse with a scientific name of Equus simplicidens. It is believed to have been similar to the Grevy's zebra. Sony VAIO PCG-31112M battery The animals had stocky zebra-like bodies and short, narrow, donkey-like skulls.[5] Grevy's zebra also has a donkey-like skull. The Hagerman horse is also called the American zebra or Hagerman zebra.

Classification

Zebras in Botswana

There are three extant species. Collectively, two of the species have eight subspecies (seven extant). Zebra populations are diverse, and the relationships between and the taxonomic status of several of the subspecies are not well knownSony VAIO PCG-31111M battery.

The plains zebra (Equus quagga, formerly Equus burchelli) is the most common, and has or had about twelve subspecies distributed across much of southern and eastern Africa. It, or particular subspecies of it, have also been known as the common zebra, the dauw, Burchell's zebra (actually the subspecies Equus quagga burchellii), Chapman's zebra, Wahlberg's zebra, Selous' zebraSony VAIO PCG-41111V battery, Grant's zebra, Boehm's zebra and the quagga (another extinct subspecies, Equus quagga quagga).

The mountain zebra (Equus zebra) of southwest Africa tends to have a sleek coat with a white belly and narrower stripes than the plains Zebra. It has two subspecies and is classified as vulnerableSony VAIO PCG-41112M battery.

Grévy's zebra (Equus grevyi) is the largest type, with a long, narrow head, making it appear rather mule-like. It is an inhabitant of the semiarid grasslands of Ethiopia and northern Kenya. Grévy's zebra is the rarest species, and is classified as endangered.

Although zebra species may have overlapping ranges, they do not interbreed. This held true even when the quagga and Burchell's race of plains zebra shared the same areaSony VAIO PCG-41111M battery. In captivity, plains zebras have been crossed with mountain zebras. The hybrid foals lacked a dewlap and resembled the plains zebra apart from their larger ears and their hindquarters pattern. Attempts to breed a Grévy's zebra stallion to mountain zebra mares resulted in a high rate of miscarriage. In captivity, crosses between zebras and other (non-zebra) equines have produced several distinct hybrids, including the zebroid, zeedonk, zony, and zorseSONY VAIO PCG-21214V battery. In certain regions of Kenya, plains zebras and Grévy's Zebra coexist, and fertile hybrids occur.[6]

Physical attributes

Size and weight

The common plains zebra is about 50–52 inches (12.2-13 hands, 1.3 m) at the shoulder with a body ranging from 6–8.5 feet (2–2.6 m) long with an 18-inch (0.5 m) tail. It can weigh up to 770 pounds (350 kg), males being slightly bigger than females. Grévy's Zebra is considerably larger, while the mountain zebra is somewhat smaller. SONY VAIO PCG-21213V battery

Stripes

It was previously believed that zebras were white animals with black stripes, since some zebras have white underbellies. Embryological evidence, however, shows that the animal's background color is black and the white stripes and bellies are additions.[3] It is likely that the stripes are caused by a combination of factors. SONY VAIO PCG-21212V battery

A mother nursing her young blends into a stand of deadwood.

The stripes are typically vertical on the head, neck, forequarters, and main body, with horizontal stripes at the rear and on the legs of the animal. The "zebra crossing" is named after the zebra's black and white stripes.

A wide variety of hypotheses have been proposed to account for the evolution of the striking stripes of zebras. The more traditional of these (1 & 2, below) relate to camouflageSONY VAIO PCG-21212M battery.

1. The vertical striping may help the zebra hide in grass. While seeming absurd at first glance, considering that grass is neither white nor black, it is supposed to be effective against the zebra's main predator, the lion, which is color blind[dubious – discuss]. In addition, even at moderate distances, the striking striping merges to an apparent greySONY VAIO PCG-21211M battery.

2. Another hypothesis is that since zebras are herd animals, the stripes may help to confuse predators—a number of zebras standing or moving close together may appear as one large animal, making it more difficult for the lion to pick out any single zebra to attack.

3. It has been suggested that the stripes serve as visual cues and identification. SONY VAIO PCG-51212M batteryAlthough each striping pattern is unique to each individual, it is not known whether zebras can recognize one another by their stripes.

4. At least two experiments indicate that the disruptive colouration is an effective means of confusing the visual system of flies, in one case the blood-sucking tsetse fly, in another horseflies (tabanids) SONY VAIO PCG-51211M battery.

5. Alternative theories include that the stripes coincide with fat patterning beneath the skin, serving as a thermo-regulatory mechanism for the zebra, or that wounds sustained disrupt the striping pattern to clearly indicate the fitness of the animal to potential mates.[citation needed]

A zebra walkingSONY VAIO PCG-51112M battery

Gaits

Like horses, zebras walk, trot, canter and gallop. They are generally slower than horses, but their great stamina helps them outpace predators. When chased, a zebra will zig-zag from side to side, making it more difficult for the predator. When cornered, the zebra will rear up and kick or bite its attackerSONY VAIO PCG-51111M battery.

Face of a zebra

Senses

Zebras have excellent eyesight. It is believed that they can see in color. Like most ungulates, the zebra has its eyes on the sides of its head, giving it a wide field of view. Zebras also have night vision, although not as advanced as that of most of their predators.

Zebras have excellent hearing, and tend to have larger, rounder ears than horses. Like horses and other ungulates, zebra can turn their ears in almost any direction. In addition to eyesight and hearing, zebras have an acute sense of smell and tasteSONY VAIO PCG-51111V battery.

Ecology and behavior

Harems

Zebras in Tanzania

Like most members of the horse family, zebras are highly social. Their social structure, however, depends on the species. Mountain zebras and plains zebras live in groups, known as 'harems', consisting of one stallion with up to six mares and their foals. Bachelor males either live alone or with groups of other bachelors until they are old enough to challenge a breeding stallionSONY VAIO PCG-81211V battery. When attacked by packs of hyenas or wild dogs a zebra group will huddle together with the foals in the middle while the stallion tries to ward them off.

Unlike the other zebra species, Grevy's zebras do not have permanent social bonds. A group of these zebras rarely stays together for more than a few months. The foals stay with their mothers, while adult males live alone. Like the other two zebra species, bachelor male zebras will organize in groupsSONY VAIO PCG-81111V battery.

Like horses, zebras sleep standing up, and only sleep when neighbors are around to warn them of predators.

Communication

A zebra feeding on grass

Zebras communicate with each other with high pitched barks and whinnying. Grevy's zebras make mule-like brays. A zebra's ears signify its mood. When a zebra is in a calm, tense or friendly mood, its ears stand erect. When it is frightened, its ears are pushed forwardSONY VAIO PCG-81212M battery. When angry, the ears are pulled backward. When surveying an area for predators, zebras will stand in an alert posture; with ears erect, head held high, and staring. When tense they will also snort. When a predator is spotted or sensed, a zebra will bark (or bray) loudly.

Hartmann's Mountain Zebra with a Barbary sheep behind it, in captivity at Ueno Zoo, in Japan. (video) Sony VAIO PCG-81112M battery

Food and foraging

Zebras feed almost entirely on grasses, but may occasionally eat shrubs, herbs, twigs, leaves and bark. Their digestive systems allow them to subsist on diets of lower nutritional quality than that necessary for other herbivores.

Reproduction

Female zebras mature earlier than the males, and a mare may have her first foal by the age of three. Males are not able to breed until the age of five or sixSONY VAIO PCG-71111M battery. Mares may give birth to one foal every twelve months. She nurses the foal for up to a year. Like horses, zebras are able to stand, walk and suckle shortly after they are born. A zebra foal is brown and white instead of black and white at birth.

Plains and mountain zebra foals are protected by their mothers, as well as the head stallion and the other mares in their group. Grevy's zebra foals have only their mother as a regular protector, since, as noted above, Grevy's zebra groups often disband after a few monthsSONY VAIO PCG-7192V battery.

Human interactions

Lord Rothschild with his famed zebra carriage (sp. Equus quagga burchellii), which he frequently drove through London

Domestication

Attempts have been made to train zebras for riding, since they have better resistance than horses to African diseases. Most of these attempts failed, though, due to the zebra's more unpredictable nature and tendency to panic under stress. For this reason, zebra-mules or zebroidsSONY VAIO PCG-7191V battery (crosses between any species of zebra and a horse, pony, donkey or ass) are preferred over purebred zebras.

In England, the zoological collector Lord Rothschild frequently used zebras to draw a carriage. In 1907, Rosendo Ribeiro, the first doctor in Nairobi, Kenya, used a riding zebra for house calls. In the mid-19th century, Governor George Grey imported zebras to New Zealand from his previous posting in South Africa, and used them to pull his carriage on his privately owned Kawau IslandSONY VAIO PCG-7196M battery.

A tamed zebra being ridden in East Africa

Captain Horace Hayes, in "Points of the Horse" (circa 1893), compared the usefulness of different zebra species. In 1891, Hayes broke a mature, intact mountain zebra stallion to ride in two days time, and the animal was quiet enough for his wife to ride and be photographed upon. He found the Burchell's zebra easy to break, and considered it ideal for domesticationSONY VAIO PCG-7195M battery, as it was immune to the bite of the tsetse fly. He considered the quagga (now extinct) well-suited to domestication due to being easy to train to saddle and harness.[12]

Conservation

Modern man has had great impact on the zebra population. Zebras were, and still are, hunted for their skins, and for meat. They also compete with livestock for forage,[13] and are sometimes culledSONY VAIO PCG-7194M battery.

The Cape mountain zebra was hunted to near extinction, with less than 100 individuals by the 1930s. The population has increased to about 700 due to conservation efforts, though. Both mountain zebra subspecies are currently protected in national parks, but are still endangered.

Zebras on the Botswana coat of armsSONY VAIO PCG-7192M battery.

The Grevy's zebra is also endangered. Hunting and competition from livestock have greatly decreased their population. Because of the population's small size, environmental hazards, such as drought, are capable of affecting the entire species. Plains zebras are much more numerous and have a healthy population. Nevertheless, they too have been reduced by hunting and loss of habitat to farming. One subspecies, the quagga, is now extinctSONY PCG-8113M battery.

Cultural depictions

Zebras have been the subject of African folk tales which tell how they got their stripes. According to a Bushmen folk tale of Namibia, the zebra was once all white, but acquired its black stripes after a fight with a baboon over a waterhole. After kicking the baboon so hard, the zebra lost his balance and tripped over a fire, and the fire sticks left scorch marks all over his white coat. SONY PCG-8112M battery In the film Fantasia, two centaurs are depicted being half human and half zebra, instead of the typical half human and half horse.[15]

Illustration of a zebra by Ludolphus

Zebra are a popular subject in art.[16] The fourth Mughal emperor Jahangir (r.1605-24), commissioned a painting of the zebra, which was completed by Ustad Mansur.[17] Zebra stripes are also a popular style for furniture, carpets and fashionSONY PCG-7134M battery .

When depicted in movies and cartoons, zebras are most often miscellaneous characters, but have had some starring roles, notably in Madagascar and Racing Stripes. Zebras also serve as mascots and symbols for products and corporations, notably Zebra Technologies and Fruit Stripe gum. Zebras are featured on the coat of arms of BotswanaSONY PCG-7131M battery .

Antelope is a term referring to many even-toed ungulate species indigenous to various regions in Africa and Eurasia. Antelopes comprise a miscellaneous group within the family Bovidae, encompassing those old-world species that are neither cattle, sheep, buffalo, bison, nor goats. A group of antelope is called a herdSONY PCG-7122M battery.

Distinctions from even-toed ungulates

No antelope species are native to Australasia, or Antarctica. Nor do any extant species occur in the Americas, though at least one saiga species occurred in parts of North America during the Pleistocene. The Pronghorn of North America, though sometimes known colloquially as Pronghorn Antelope, is not a member of the family BovidaeSONY PCG-7121M battery, but the family Antilocapridae and accordingly is not a true antelope. Among their most obvious differences, pronghorns have branching horns, of which they shed the outer horny sheaths annually, in which they in turn differ from deer. The horns of pronghorns and the antlers of deer contrast in two ways with the horns of true antelopesSONY PCG-7113M battery; firstly, although true antelopes have horns of various shapes according to species, whether straight, curved, helical, or otherwise, and although their horns have cores of living bone, their horns always are unbranched. Secondly, the antelope horn never is shed, either wholly as in the antlers of deer, nor in part, as in the pronghornSONY PCG-7112M battery .

Apart from not shedding their horns, antelope, and bovids in general, differ from deer in several other ways. Probably the most obvious is that their horns are perennial living bone covered with strong, thick layers of dead horn tissue, whereas antlers, in those deer that have them, are covered with living skin ("velvet") only while growing. The velvet then is shed and the bony tissue, after it has matured, dies and is shed at the end of the seasonSONY PCG-8Z3M battery .

Etymology

Illustration from The History of Four-footed Beasts (1607)

The English word "antelope" first appears in 1417 and is derived from the Old French antelop, itself derived from Medieval Latin ant(h)alopus, which in turn comes from the Byzantine Greek word anthólops, first attested in Eustathius of Antioch (c.336), according to whom it was a fabulous animal "haunting the banks of the Euphrates, very savageSONY PCG-8Z2M battery, hard to catch and having long saw-like horns capable of cutting down trees".[2] It perhaps derives from Greek anthos (flower) and ops (eye), perhaps meaning "beautiful eye" or alluding to the animals long eyelashes; however this may be a later folk etymology. The word talopus and calopus, from Latin, came to be used in heraldry. In 1607 it was first used for living, cervine animalsSONY PCG-8Z1M battery.

Species

There are 91 species, most of which are native to Africa, in about 30 genera. The classification of tribes or subfamilies within Bovidae is still a matter of debate, with several alternative systems proposed.

Antelope are not a cladistic or taxonomically defined group. The term is used loosely to describe all members of the family Bovidae which do not fall under the category of sheepSONY PCG-8Y3M battery, cattle, or goat. Usually all species of the Alcelaphinae, Antilopinae, Hippotraginae, Reduncinae, Cephalophinae, many Bovinae, the Grey Rhebok, and the impala are called antelopes.

Distribution and habitat

Most species of antelope are native to Africa, but some occur in Asia. The Arabian Peninsula is home to the Arabian Oryx and Dorcas Gazelle. India is home to the Nilgai, Chinkara, Blackbuck, Tibetan antelope and Four-horned Antelope, while Russia and Central Asia have the Tibetan antelope, and Saiga AntelopeSONY PCG-8Y2M battery.

Many species of antelope have been imported to other parts of the world, especially the United States, for exotic game hunting. Due to the spectacular leaping and evasive skills of some species, individuals may escape. Texas in particular has high numbers of gaming ranches, as well as habitat and climate that are very hospitable to African and Asian plains antelope speciesSONY PCG-7Z1M battery. As such, wild populations of Blackbuck Antelope, Gemsbok, and Nilgai exist in Texas, though they are not native to the area.[3]

Antelope exist in a wide range of habitats. Numerically, most exist in the African savannahs. However, there are many species of more secluded forest antelope, as well as the extreme-cold living Saiga, desert adapted Arabian Oryx, the rocky kopje-living klipspringer, and semi-aquatic sitatunga. SONY PCG-6W2M battery

Species of forest, woodland, or bush tend to be sedentary, but many of the plains species undertake huge migrations. These migrations enable grass-eating species to follow the rains and therefore their food supply. The gnus and gazelles of East Africa perform some of the most impressive mass migratory circuits of all mammals. SONY PCG-5J5M battery

Morphology

Gerenuks can stand erect on their hind legs to browse on high foliage

All bovids have even-toed hooves, horizontal pupils, ruminating guts, and (in at least the males) bony horns. These basic characteristics, however, mask huge differences in appearance between antelopes, cattle, goats, and sheep, and among the antelopes themselves.[6] For example, a male Common Eland can measure 178 centimetres (70 in) at the shoulder and weigh almost 950 kilograms (2,100 lb) SONY PCG-5K2M battery, whereas an adult Royal Antelope may stand only 24 centimetres (9.4 in) at the shoulder and weigh a mere 1.5 kilograms (3.3 lb).

Not surprisingly for animals with long, slender yet powerful legs, many antelopes have long strides and can run fast. Some (e.g. Klipspringer) are also adapted to climbing in rock kopjes. Both Dibatags and Gerenuks habitually stand on their two hind legs to reach acacia and other tree foliageSONY PCG-5K1M battery . Different antelope have different body types which can affect movement. Duikers are short, bush-dwelling antelope that can pick through dense foliage and dive into the shadows rapidly. Gazelles and Springbok are known for their speed and leaping abilities. Even larger antelope, such as Nilgai, Elands, and Kudus, are capable of jumping 8 feet (2.4 m) or greater, although their running speed is restricted by their greater massSONY PCG-5J4M battery .

Antelopes have a wide variety of coverings, through most have a dense coat of short fur. In most species, the coat (pelage) is some variation of a brown colour (or several shades of brown); often with white or pale under-bodies. Exceptions include the zebra-marked Zebra Duiker; the grey, black, and white Jentink's DuikerSONY PCG-5J1M battery ; and the Black Lechwe. Most of the "spiral-horned" antelopes have pale vertical stripes on their backs. Many desert and sub-desert species are particularly pale, some almost silvery or whitish (e.g. Arabian Oryx); the Beisa and Southern Oryxes have gray and black pelage with vivid black-and-white faces. Common features of various gazelles are a white rumpSONY PCG-5G2M battery, which flashes a warning to others when they run from danger, and a dark stripe mid-body (the latter feature is also shared by the Springbok and Beira). The Springbok also has a pouch of white brushlike hairs running along its back, which opens up when the animal senses danger, causing the dorsal hairs to stand on endSony VAIO PCG-8131M battery.

Antelopes are ruminants, and thus have well-developed molar teeth, which grind cud (food balls stored in the stomach) into a pulp for further digestion. They have no upper incisors, but rather a hard upper gum pad, against which their lower incisors bite to tear grass stems and leaves.

Like many other herbivores, antelopes rely on keen senses to avoid predatorsSony VAIO PCG-8152M battery. Their eyes are placed on the sides of their heads, giving them a broad radius of vision with minimal binocular vision. The fact that most species have their pupils elongated horizontally also helps in this respect. Acute senses of smell and hearing, give antelope the ability to perceive danger at night out in the open (when predators are often on the prowl). These same senses play an important role in contact between individuals of the same speciesSony VAIO PCG-31311M battery: markings on head, ears, legs, and rumps are used in such communication—many species "flash" such markings, as well as their tails; vocal communications include loud barks, whistles, "moos" and trumpeting; many species also use scent marking to define their territories or simply to maintain contact with their relatives and neighborsSony VAIO PCG-31111M battery.

Many antelope are sexually dimorphic. In most species, both sexes have horns, but those of males tend to be larger. There is a tendency for males to be larger than the females; however, exceptions in which the females tend to be heavier than the males include the Bush Duiker, Dwarf Antelope, Cape Grysbok, and Oribi, all rather small speciesSony VAIO PCG-8112M battery. A number of species have hornless females (e.g. Sitatunga, Red Lechwe, and Suni). In some species, the males and females have different coloured pelage (e.g. Blackbuck and Nyala).

Antelope horns

The size and shape of antelope horns varies immensely. Those of the duikers and dwarf antelopes tend to be simple "spikes", but differ in the angle to the head from backward curved and backward pointing (e.g. Yellow-backed Duiker)Sony VAIO PCG-7186M battery to straight and upright (e.g. Steenbok). Other groups have twisted (e.g. Common Eland), spiral (e.g. Greater Kudu), "recurved" (e.g. the reedbucks), lyrate (e.g. impala), or long, curved (e.g. the oryxes) horns. Horns are not shed and their bony core is covered with a thick, persistent sheath of horny material, both of which features distinguish them from antlers. Sony VAIO PCG-7171M battery

Horns are efficient weapons and tend to be better developed in those species where males fight over females (large herd antelope) than in solitary or lekking species. With male-male competition for mates, horns are clashed in combat. It is much more common for males to use their horns against each other than against another speciesSony VAIO PCG-9Z1M battery. The boss of the horns is typically arranged in such a way that two antelope striking at each other's horns cannot crack each other's skulls, making a fight via horn more ritualized than dangerous. Many species have ridges in their horns for at least 2/3 the length of their horns, but these ridges are not a direct indicator of ageSony VAIO PCG-5S1M battery.

Behavior

Mating strategies

Forest-dwelling bushbuck.

Antelope are often classified by their reproductive behavior.

Small antelope, such as dik-diks, tend to be monogamous. They live in a forest environment with patchy resources, and a male is unable to monopolize more than one female due to this sparse distribution. Larger forest species often form very small herds of 2–4 females and 1 male.

Some species such as lechwe pursue a lek breeding systemSony VAIO PCG-5P1M battery. In this, the males gather on a lekking ground and compete for a small territory, while the females appraise males and choose one with which to mate.

Large grazing antelope, such as impala or wildebeest form large herds made up of many females and a single breeding male, which excludes all other males, often by combat.

Defense

Fast running gazelles prefer open grassland habitat

Antelope pursue a number of defense strategies, often dictated by their morphology.

Large antelope that gather in large herdsSony VAIO PCG-5N2M battery, such as wildebeest rely on numbers and running speed for protection. In some species, adults will circle around the offspring, protecting them from predators when threatened. Many forest antelope rely on cryptic coloring and good hearing to avoid predators. Forest antelope often have very large ears and a dark or striped coloration. Small antelope, especially duikers, evade predation by jumping into dense bush where the predator cannot pursue. Sony VAIO PCG-3C2M battery Springboks use a behavior known as stotting to confuse predators.

Open grassland species have nowhere to hide from predators so they tend to be fast runners. They are agile and have good endurance—these are advantages when pursued by sprint-dependent predators like cheetah, which are the fastest of land animals but tire quickly. Reaction distances vary with predator species and predator behaviourSony VAIO PCG-8161M battery. For example, gazelles may not flee from a lion until it is closer than 200 m (650 ft)—lions hunt as a pride or by surprise, usually by stalking, one that can be seen clearly is unlikely to attack. However, sprint-dependent cheetahs will cause gazelles to flee at a range of over 800 m (0.5 mile).

Status

About 25 species are rated by the IUCN as endangered,[10] such as the Dama Gazelle and Mountain NyalaSony VAIO PCG-8141M battery. A number of subspecies are also endangered, including the Giant Sable Antelope and mhorr gazelle. The main causes for concern for these species are habitat loss, competition with cattle for grazing, and trophy hunting.

The chiru or Tibetan antelope is hunted for its pelt, which is used in making shahtoosh, an incredibly fine material used in shawls. The fur can only be removed from dead animalsSony VAIO PCG-3J1M battery, and each animal yields very little of the downy fur, so multiple antelope must be killed to make a single shawl. This unsustainable demand has led to enormous declines in the chiru population.

The Saiga Antelope is hunted for its horns, which are considered an aphrodisiac by some cultures. Only the males carry the horns, and have been heavily hunted to the point where some herds contain up to 800 females and a single male. The species has shown a steep decline and is critically endangeredSony VAIO PCG-3H1M battery.

Lifespan

It is difficult to determine how long antelope live in the wild. With the preference of predators towards old and infirm individuals which can no longer sustain peak speeds, few wild prey-animals live as long as their biological potential. In captivity, wildebeest have lived beyond 20 years old, and impalas have reached their late teensSony VAIO PCG-3F1M battery. In the wild, few individuals of prey species live to old age, as the old and weak are easier prey for predators; antelopes are no exception to this rule.[11]

Humans

Culture

Greater Kudu horn shofar.

The antelope's horn is prized for medicinal and magical powers in many places. The horn of the male Saiga in Eastern practice is ground as an aphrodisiac, for which it has been hunted nearly to extinction.[12] In the Congo, it is thought to confine spirits. Christian iconography sometimes uses the antelope's two horns as a symbol of the two spiritual weapons that Christians possess
Sony VAIO PCG-3C1M battery
: the Old Testament and the New Testament. Their ability to run swiftly has also led to their association with the wind, such as in the Rig Veda, as the steeds of the Maruts and the wind god Vayu.

Domestication

Domestication of animals requires certain traits in the animal which antelope do not typically display. Most species are difficult to contain in any density, due to territoriality of males or in the case of oryxes (which have a relatively hierarchical social structure) Sony VAIO PCG-9Z2L battery, an aggressive disposition that can easily kill a human. Because many have extremely good jumping abilities, providing adequate fencing is a challenge. Also, antelope will consistently display a fear response to perceived predators, such as humans, making them very difficult to herd or handle. Although antelopes have a diet and rapid growth rate highly suitable for domesticationSony VAIO PCG-9Z1L battery, this tendency to panic and their non-hierarchical social structure explains why farm-raised antelope is uncommon. Ancient Egyptians kept herds of gazelles and Addax for meat, and occasionally pets. It is unknown whether they were truly domesticated, but it seems unlikely as no domesticated gazelles exist today.

However, humans have had success taming certain species, such as the elands. These antelope sometimes jump over each other's backs when alarmedSony VAIO PCG-9131L battery, but this incongruous talent seems to be exploited only by wild members of the species; tame elands do not take advantage of it and can be enclosed within a very low fence. Their meat, milk, and hides are all of excellent quality, and experimental eland husbandry has been going on for some years in both Ukraine and Zimbabwe. In both locations the animal has proved wholly amenable to domestication.[13] For further information, see animal domesticationSony VAIO PCG-8161L battery.

[edit]Hybrid antelope

A wide variety of antelope hybrids have been recorded in zoos, game parks, and wildlife ranches. This is due to either a lack of more appropriate mates in enclosures shared with other species or a misidentification of species. The ease of hybridization shows how closely related some antelope species are. With few exceptions, most hybrid antelope occur only in captivitySony VAIO PCG-8152L battery.

Most hybrids occur between species within the same genus. All reported examples occur within the same sub-family. As with most mammal hybrids, the less closely related the parents, the more likely that the offspring will be sterile.[11]

The koala (Phascolarctos cinereus) is an arboreal herbivorous marsupial native to Australia, and the only extant representative of the family PhascolarctidaeSony VAIO PCG-8141L battery.

The koala is found in coastal regions of eastern and southern Australia, from Adelaide to the southern part of Cape York Peninsula. Populations also extend for considerable distances inland in regions with enough moisture to support suitable woodlands. The koalas of South Australia were largely exterminated during the early part of the 20th century, but the state has since been repopulated with Victorian stock. The koala is not found in Tasmania or Western AustraliaSony VAIO PCG-8131L battery.

Names

The word koala comes from the Dharuk gula. Although the vowel /u/ was originally written in the English orthography as "oo" (in spellings such as coola or koolah), it was changed to "oa" possibly due to an error.[6] The word is erroneously said to mean "doesn't drink".[6]

The scientific name of the koala's genus, Phascolarctos, is derived from Greek phaskolos "pouch" and arktos "bear". Its species name, cinereus, is Latin and means "ash-coloured".Sony VAIO PCG-81312L battery

Although the koala is not a bear, English-speaking settlers from the late 18th century first called it koala bear due to its similarity in appearance to bears. Although taxonomically incorrect, the name koala bear is still in use today outside Australia[8] – its use is discouraged because of the inaccuracy in the name. Other descriptive English names based on "bear" have included monkey bear, native bear, and tree-bear. Sony VAIO PCG-81214L battery

Variation

A Southern koala on Kangaroo Island, not native to the island

Although three subspecies have been described, these are arbitrary selections from a cline and are not generally accepted as valid. Following Bergmann's Rule, individuals from the southern cooler climates are larger.

A typical Victorian koala (formerly P. cinereus victor) has longer, thicker fur; is a darker, softer grey, often with chocolate-brown highlights on the back and forearms; and has a more prominently light-coloured ventral side and fluffy white ear tuftsSony VAIO PCG-81115L battery. Typical and New South Wales koala weights are 12 kg (26 lb) for males and 8.5 kg (19 lb) for females. In tropical and sub-tropical Queensland, however, the koala is smaller (at around 6.5 kg (14 lb) for an average male and just over 5 kg (11 lb) for an average female); a lighter often rather scruffy grey in colour; and has shorter, thinner fur. In Queensland, the koala was previously classified as the subspecies P. cinereus adustusSony VAIO PCG-81114L battery, and the intermediate forms in New South Wales as P. cinereus cinereus. A fourth variation, though not technically a subspecies, is the "golden koala", which has a slight golden tinge to the fur as a result of an absence of the melanin pigment that produces albinism in most other mammalian species. The variation from one form to another is continuous and there are substantial differences between individual koalas in any given region such as hair colourSony VAIO PCG-81113L battery. Koalas may also have white fur in rare cases due to a recessive gene.

The origins of the koala are unclear, although almost certainly they descended from terrestrial wombat-like animals. Koala fossils are quite rare, but some have been found in northern Australia dating to 20 million years ago. During this time, the northern half of Australia was rainforest. The koala did not specialise in a diet of eucalypts until the climate cooled and eucalypt forests grew in the place of rainforestsSony VAIO PCG-7142L battery. The fossil record indicates that before 50,000 years ago, giant koalas inhabited the southern regions of Australia. The koala fills the same ecological role as the sloths of South America.

Physical description

The koala is broadly similar in appearance to the wombat (its closest living relative),[1] but has a thicker coat, much larger ears, and longer limbs. The koala has large, sharp claws to assist with climbing tree trunks. Weight varies from about 14 kg (31 lb) for a large southern male, to about 5 kg (11 lb) for a small northern femaleSony VAIO PCG-7141L battery. The koala's five fingers include two opposable thumbs, providing better gripping ability. The first two fingers are positioned in apposition on the front paws, and the first three fingers for the hind paws.[13] The koala is one of the few mammals (other than primates) that have fingerprints. Koala fingerprints are similar to human fingerprints; even with an electron microscopeSony VAIO PCG-71111L battery, it can be quite difficult to distinguish between the two.[14] The teeth of the koala are adapted to their herbivorous diet, and are similar to those of other diprotodont marsupials, such as kangaroos and wombats. They have sharp incisors to clip leaves at the front of the mouth, separated from the grinding cheek teeth by a wide diastema. The dental formula for koalas is

The male koala, like many marsupials, has a bifurcated penisSony VAIO PCG-61411L battery. The female has two lateral vaginas and two separate uteri, which is common to all marsupials.[15]

Koalas walk on all four legs when walking on the ground, joey clinging to the back

The brain in the ancestors of the modern koala once filled the whole cranial cavity, but has become drastically reduced in the present species, a degeneration scientists suspect is an adaptation to a diet low in energy.[16] One of the smallest in marsupials with no more than 0.2% of its body weight,[17] about 40% of the cranial cavity is filled with cerebrospinal fluidSony VAIO PCG-61112L battery, while the brain's two cerebral hemispheres are like "a pair of shrivelled walnut halves on top of the brain stem, in contact neither with each other nor the bones of the skull. It is the only animal on Earth with such a strangely reduced brain."[18]

It is generally a silent, nocturnal animal, but males have a very loud advertising call that can be heard from almost a kilometre away during the breeding season. Sony VAIO PCG-61111L battery Females glean clues regarding a male's suitability as a mate from these calls, showing a preference for larger males.[22] When under stress, koalas may issue a loud cry, which has been reported as similar to that of a human baby.[23] There is little reliable information about the lifespan of the koala, but in captivity they have been observed to reach the age of 18 years. Sony VAIO PCG-5T4L battery

Life cycle

A young joey, preserved at Port Macquarie Koala Hospital

Baby koala on a mother's back

Females reach maturity at 2 to 3 years of age, males at 3 to 4 years. A healthy female koala can produce one young each year for about 12 years. Gestation is 35 days. Twins are very rare; the world's first confirmed identical twin koalas, named "Euca" and "Lyptus", were born at the University of Queensland in April 1999. Mating normally occurs between December and March, the Southern Hemisphere's summerSony VAIO PCG-5T3L battery.

A baby koala is referred to as a joey and is hairless, blind, and earless. At birth the joey, only 20 mm (0.79 in) long, crawls into the downward-facing pouch on the mother's belly (which is closed by a drawstring-like muscle that the mother can tighten at will) and attaches itself to one of the two teatsSony VAIO PCG-5T2L battery.

Young remain hidden in the pouch for about six months, feeding on only milk. During this time they grow ears, eyes, and fur. The joey then begins to explore outside of the pouch. At about this stage it begins to consume small quantities of the mother’s "pap" (formerly thought to be excrement, but now thought to come from the mother's cecum) in order to inoculate its gut with the microbes necessary to digest eucalypt leaves. Sony VAIO PCG-5S3L battery The joey will remain with its mother for another six months or so, riding on her back, and feeding on both milk and eucalypt leaves until weaning is complete at about 12 months of age. Young females disperse to nearby areas at that time; young males often stay in the mother's home range until they are two or three years oldSony VAIO PCG-5S2L battery.

Diet and behaviour

Koala with joey in pouch

The koala lives almost entirely on eucalypt leaves. This is likely to be an evolutionary adaptation that takes advantage of an otherwise unfilled ecological niche, since eucalypt leaves are low in protein, high in indigestible substances, and contain phenolic and terpene compounds that are toxic to most species. Like wombats and sloths, the koala has a very low metabolic rate for a mammal and rests motionless for about 16 to 18 hours a daySony VAIO PCG-5S1L battery, sleeping most of that time. Koalas can be aggressive towards each other, throwing a foreleg around their opponent and biting, though most aggressive behaviour is brief squabbles.[27] Handling koalas may cause them stress,[28] and the issue of aggression and stress from handling is a political issue in Australia. Sony VAIO PCG-5R2L battery

Koalas spend about three of their five active hours eating. Feeding occurs at any time of day, but usually at night. Koalas eat an average of 500 g (18 oz) of eucalypt leaves each day, chewing them with powerful jaws to a very fine paste before swallowing. The liver deactivates the toxic components ready for excretion, and the hind gut (especially the cecum) is greatly enlarged to extract the maximum amount of nutrient from the poor quality dietSony VAIO PCG-5R1L battery. Much of this is done through bacterial fermentation: while young are being weaned, the mother passes these essential digestive aids on to her offspring.

A koala eating eucalyptus

The koala will eat the leaves of a wide range of eucalypts, and occasionally even some non-eucalypt species such as Acacia, Leptospermum, and Melaleuca. It has firm preferences for particular varieties of eucalypt and these preferences vary from one region to anotherSony VAIO PCG-5P4L battery: in the south Manna Gum, Blue Gum, and Swamp Gum are favoured; Grey Gum and Tallowwood are important in the north, and the ubiquitous River Red Gum of the isolated seasonal swamps and watercourses that meander across the dry inland plains allows the koala to live in surprisingly arid areas. Many factors determine which of the 680 species of eucalypt trees the koala eatsSony VAIO PCG-5P2L battery. Among trees of their favourite species, however, the major factor that determines which individual trees the koala chooses is the concentration of a group of phenolic toxins called formylated phloroglucinol compounds.[31] Researches on koalas by keepers at 13 wildlife parks and zoos in New South Wales show that the most preferred group of Eucalyptus foliage had the lowest content of condensed tannins. Sony VAIO PCG-5N4L battery

Conservation status

Koala in tree, scratching & grooming

The Australian government currently lists the koala as a priority species for conservation status assessment.[33] Government estimates of the national koala population numbers in the hundreds of thousands, although other studies have estimated as few as 80,000 koalas left in the wild.[34] The Australian Koala Foundation in 2008 estimated there are around 100,000 koalas left in the wild. Sony VAIO PCG-5N2L battery

As with most native Australian animals, the koala cannot legally be kept as a pet in Australia or anywhere else. The only people who are permitted to keep koalas are wildlife carers and, occasionally, research scientists. These individuals are issued with special permits to care for koalas, but have to return them to the wild when they are either well enough or, in the case of joeys, old enough. Sony VAIO PCG-51513L battery

The IUCN lists the species as "Least Concern".[36]

In April 2012, it was announced that koalas in NSW, Queensland and the ACT will be classified as vulnerable under a protected listing by Federal Environment Minister of the Australian government Tony Burke.

The US government has declared the koala a threatened species.[41]

The koala inhabits four Australian states. Under state legislation, the species is listed asSony VAIO PCG-51511L battery:

Queensland – Listed as "vulnerable".

New South Wales – Listed as "vulnerable".

Australian Capital Territory – Listed as "vulnerable".

South Australia – classified as rare (although the population on Kangaroo Island is thriving).[42]

Victoria – The koala population in Victoria was considered large and thriving, according to an article which was last reviewed on 29 October 2007.[43]

The koala was hunted almost to extinction in the early 20th century,[44] largely for its fur. Millions of furs were traded to Europe and the United States, and the population has not fully recovered from such decimationsSony VAIO PCG-51412L battery. Extensive cullings occurred in Queensland in 1915, 1917, and again in 1919 when over one million koalas were killed with guns, poisons, and nooses.[45] The public outcry over the cullings was most likely the first wide-scale environmental issue that rallied Australians.[45] Despite the growing movement to protect native species, the poverty brought about by the drought of 1926–28 led to another 600,000 koalas being killed during a one-month open season in August 1927Sony VAIO PCG-51411L battery.

Today, habitat loss and the impacts of urbanisation (such as dog attacks and traffic accidents) are the leading threats to the survival of the koala. In recent years, some colonies have been hard hit by disease, especially chlamydia.[46] 2011 surveys in Queensland show that chlamydia has caused symptoms in at least 50 percent of the koala populationSony VAIO PCG-51312L battery. Chlamydia of koalas is not the same as the human form, but can cause blindness, respiratory infections to all koalas and infertility of female koalas. Moreover nearly all of the koalas in Queensland are infected with koala retrovirus which suppresses the koala's immune system and interferes with its ability to fight off chlamydia.[47] The koala requires large areas of healthy, connected forest and will travel long distances along tree corridors in search of new territory and matesSony VAIO PCG-51311L battery. The increasing human population of the coastal parts of the continent continues to cut these corridors through agricultural and residential development, forestry, and road-building, thereby marooning koala colonies in decreasing areas of bush. The long-term viability of the koala is therefore threatened by genetic weakness[citation needed] Sony VAIO PCG-51211L battery. The Australian Koala Foundation is the principal organisation dedicated to the conservation of the koala and its habitat, mapping 40,000 km2 (15,000 sq mi) of land for koala habitat and claiming strong evidence that wild koala populations are in serious decline throughout the species' natural range.[42] Local councils in growing urban areas with koala populations that have established or are in the process of establishing planning overlays and controls to preserve habitat for koalas include the Victorian councils of City of BallaratSony VAIO PCG-41112L battery, Macedon Ranges Shire[50] and Glenelg Hopkins Catchment Management Authority[49] as well as the Queensland councils of Moreton Bay Regional Council and Redland Shire Council.

Although the species covers a large area, only portions of koala habitat remain. Presently, many habitats are lost to weeds, clearance for agriculture, or carved up by developers. Other threats come from logging, poor management, attacks from feral and domestic animals, diseases, and roadsSony VAIO PCG-3A4L battery.

 
A dragon is a legendary creature, typically with serpentine or reptilian traits, that features in the myths of many cultures. There are two distinct cultural traditions of dragons: the European dragon, derived from European folk traditions and which is ultimately related to Greek and Middle Eastern mythologiesDell Latitude E5420 Battery, and the Chinese dragon, with counterparts in Japan, Korea and other East Asian countries.

The two traditions may have evolved separately, but have influenced each to a certain extent, particularly with the cross-cultural contact of recent centuries. The English word "dragon" derives from Greek δράκων (drákōn), "dragon, serpent of huge size, water-snake", which probably comes from the verb δρακεῖν (drakeîn) "to see clearly"Dell Latitude E5520 Battery.

Name

Dragon head on a roof of a temple in Taiwan

The word dragon entered the English language in the early 13th century from Old French dragon, which in turn comes from Latin draconem (nominative draco) meaning "huge serpent, dragon," from the Greek word δράκων, drakon (genitive drakontos, δράκοντος) "serpent, giant seafish", which is believed to have come from an earlier stem drak-, a stem of derkesthaiDell Latitude E6120 Battery, "to see clearly," from Proto-Indo-European derk- "to see" or "the one with the (deadly) glance." The Greek and Latin term referred to any great serpent, not necessarily mythological, and this usage was also current in English up to the 18th century.

Morphology

An illustration of an Eastern dragon.

A dragon is a mythological representation of a reptile. In antiquity, dragons were mostly envisaged as serpents, but since the Middle Ages, it has become common to depict them with legs, resembling a lizardDell Latitude E6220 Battery.

Dragons are usually shown in modern times with a body like a huge lizard, or a snake with two pairs of lizard-type legs, and able to emit fire from their mouths. The European dragon has bat-type wings growing from its back. A dragon-like creature with no front legs is known as a wyvernDell Latitude E6320 Battery.

Comparative mythology

Further information: Chaoskampf, Sea serpent, Proto-Indo-European religion#Dragon or Serpent, and Serpent (Bible)

The association of the serpent with a monstrous opponent overcome by a heroic deity has its roots in the mythology of the Ancient Near East, including Canaanite (Hebrew, Ugaritic), Hittite and MesopotamianDell Latitude E6420 Battery. The Chaoskampf motif entered Greek mythology and ultimately Christian mythology, although the serpent motif may already be part of prehistoric Indo-European mythology as well, based on comparative evidence of Indic and Germanic material. It has been speculated that accounts of spitting cobras may be the origin of the myths of fire-breathing dragons. Dell Latitude E6520 Battery

Although dragons occur in many legends around the world, different cultures have varying stories about monsters that have been grouped together under the dragon label. Some dragons are said to breathe fire or to be poisonous, such as in the Old English poem Beowulf.[3] They are commonly portrayed as serpentine or reptilian, hatching from eggs and possessing typically scaly or feathered bodiesDell Inspiron Mini 1012 Series Battery. They are sometimes portrayed as having especially large eyes or watching treasure very diligently, a feature that is the origin of the word dragon (Greek drakeîn meaning "to see clearly").[4] Some myths portray them with a row of dorsal spines. European dragons are more often winged, while Chinese dragons resemble large snakes. Dragons can have a variable number of legs: none, two, four, or more when it comes to early European literatureDell Inspiron iM1012-571OBK Mini 1012 Battery.

Dragons are often held to have major spiritual significance in various religions and cultures around the world. In many Asian cultures dragons were, and in some cultures still are, revered as representative of the primal forces of nature, religion and the universe. They are associated with wisdom—often said to be wiser than humans—and longevityDell Inspiron iM1012-687AWH Mini 1012 Battery. They are commonly said to possess some form of magic or other supernatural power, and are often associated with wells, rain, and rivers. In some cultures, they are also said to be capable of human speech. In some traditions dragons are said to have taught humans to talk.

Narratives about dragons often involve them being killed by a hero. This topos can be traced to the Chaoskampf of the mythology of the Ancient Near East (e.g. Hadad vs. Yam, Marduk vs. Tiamat, Teshub vs. Illuyanka, etc. Dell Inspiron iM1012-687CRD Mini 1012 Battery; the Biblical Leviathan presumably reflects a corresponding opponent of an early version of Yahweh). The motive is continued in Greek Apollo, and the early Christian narratives about Archangel Michael and Saint George. The slaying of Vrtra by Indra in the Rigveda also belongs in this category. The theme survives into medieval legend and folkloreDell Inspiron iM1012-687JGN Mini 1012 Battery, with dragon slayers such as Beowulf, Sigurd, Tristan, Margaret the Virgin, Heinrich von Winkelried, Dobrynya Nikitich, Skuba Dratewka/Krakus. In Biblical myth, the archetype is alluded to in the descendants of Adam crushing the head of the Serpent, and in Christian mythology, this was interpreted as corresponding to Christ as the "New Adam" crushing the DevilDell Inspiron iM1012-687IBU Mini 1012 Battery.

The blood of a slain dragon is depicted as either beneficent or as poisonous in medieval legend and literary fiction. In German legend, dragon blood has the power to render invincible skin or armor bathed in it, as is the case with Siegfried's skin or Ortnit's armor. In the Slavic myth, the Earth refuses it as it is so vile that Mother Earth wishes not to have it within her wombDell Inspiron iM1012-687PPK Mini 1012 Battery, and it remains above ground for all eternity. The blood of the dragon in Beowulf has acidic qualities, allowing it to seep through iron. Heinrich von Winkelried dies after the blood of the dragon slain by him accidentally drips on him.

Near Eastern and European

Greek mythology

Main article: Dragons in Greek mythology

In Ancient Greece the first mention of a "dragon" is derived from the Iliad where Agamemnon is described as having a blue dragon motif on his sword belt and an emblem of a three-headed dragon on his breast plate. Dell Inspiron iM1012-687OBK Mini 1012 Battery However, the Greek word used (δράκων drákōn, genitive δράκοντοϛ drákontos) could also mean "snake". Δράκων drákōn is a form of the aorist participle active of Greek δέρκομαι dérkomai = "I see", derkeîn = "to see", and originally likely meant "that which sees", or "that which flashes or gleams" (perhaps referring to reflective scales). This is the origin of the word "dragon". (See also Hesiod's Theogony, 322.) Dell Inspiron iM1012-738CRD Mini 1012 Battery

In 217 A.D., Flavius Philostratus (Greek: Φλάβιος Φιλόστρατος)[6] discussed dragons (δράκων, drákōn) in India in The Life of Apollonius of Tyana (II,17 and III,6–8). The Loeb Classical Library translation (by F.C. Conybeare) mentions (III,7) that “In most respects the tusks resemble the largest swine’s, but they are slighter in build and twisted, and have a point as unabraded as sharks’ teeth.” Dell Inspiron iM1012-738IBU Mini 1012 Battery

According to a collection of books by Claudius Aelianus (Greek: Κλαύδιος Αιλιανός)[7] called On Animals, Ethiopia was inhabited by a species of dragon that hunted elephants. It could grow to a length of 180 feet and had a lifespan rivaling that of the most enduring of animals.[8]

Dragon effigy, the Graoully, in Metz, France

European

Main articles: European dragon, Saint George and the Dragon, Margaret the Virgin, and Dacian DracoDell Inspiron iM1012-799CRD Mini 1012 Battery

European dragons exist in folklore and mythology among the overlapping cultures of Europe. Dragons are generally depicted as living in rivers or having an underground lair or cave.[9] They are commonly described as having hard or armoured hide, and are rarely described as flying, despite often being depicted with wingsDell Inspiron iM1012-799IBU Mini 1012 Battery.

European dragons are usually depicted as malevolent though there are exceptions (such as Y Ddraig Goch, the Red Dragon of Wales).

Slavic dragon

Zmey Gorynych, the Russian three-headed dragon

"Dragon Family" in Varna

Main article: Slavic dragon

In Slavic mythology, the words “zmey”, "zmiy" or "zmaj" are used to describe dragons. These words are masculine forms of the Slavic word for "snake", which are normally feminine (like Russian zmeya). In Romania, there is a similar figure, derived from the Slavic dragon and named zmeu. Exclusively in Polish and Belarusian folkloreDell Inspiron iM1012-799AWH Mini 1012 Battery, as well as in the other Slavic folklores, a dragon is also called smok (смок, цмок, smok). In South Slavic folklores, the same thing is also called lamya (ламйа, ламjа, lamja). Although quite similar to other European dragons, Slavic dragons have their peculiarities.

Russian dragons usually have heads in multiples of three. Some have heads that grow back if every single head isn't cut offDell Inspiron iM1012-799OBK Mini 1012 Battery. In Ukraine and Russia, a particular dragon-like creature, Zmey Gorynych, has three heads and spits fire. According to one bylina, Zmey Gorynych was killed by bogatyr Dobrynya Nikitich.

Other Russian dragons (such as Tugarin Zmeyevich) have Turkic names, probably symbolizing the Mongols and other nomadic steppe peoples. Accordingly, St George (symbolizing Christianity) killing the Dragon (symbolizing Satan) is represented on the coat of arms of MoscowDell Inspiron iM1012-1243IBU Mini 1012 Battery. Some prehistoric structures, notably the Serpent's Wall near Kiev, have been associated with dragons.

Ancient India

In the early Vedic religion, Vritra (Sanskrit: वृत्र (Devanāgarī) or Vṛtra (IAST)) "the enveloper", was an Asura and also a "naga" (serpent) (Sanskrit: नाग)[10] or possibly dragon-like creature, the personification of drought and enemy of Indra. Vritra was also known in the Vedas as Ahi ("snake") (Sanskrit: अहि),[11] and he is said to have had three headsDell Latitude D420 Battery.

The Life of Apollonius of Tyana by Flavius Philostratus:[12] contains a long detailed description of India heavily infested with dragons, but this does not correspond with modern Indian belief, and likely not with Indian belief as it was in his time, whether Apollonius invented this story, or whether he believed someone else who told him itDell Latitude D430 Battery.

Persian

Aži Dahāka is the source of the modern Persian word azhdahā or ezhdehā اژده ها (Middle Persian azdahāg) meaning "dragon", often used of a dragon depicted upon a banner of war. The Persians believed that the baby of a dragon will be the same color as the mother's eyes. In Middle Persian he is called Dahāg or Bēvar-Asp, the latter meaning "[he who has] 10,000 horsesDell Studio 1450 Battery." Several other dragons and dragon-like creatures, all of them malevolent, are mentioned in Zoroastrian scripture. (See Zahhāk).

Jewish

In Jewish religious texts, the first mention of a dragon-like creature is in the Biblical works of Job (26:13), and Isaiah (27:1) where it is called Nachash Bare'ach, or a "Pole Serpent".[13] This is identified in the Midrash Rabba to Genesis 1:21 as Leviathan from the word Taninim (תנינים) "and God created the great sea-monsters." Dell Studio 1457 Battery In modern Hebrew the word Taninim is used for Crocodiles but this is a 20th century usage unconnected with the original Biblical meaning.[citation needed]

In later Biblical texts, the Book of Isaiah, the Book of Job, and Psalm 89 refer to a sea-demon called Rahab (not to be confused with Rahab, the woman of Jericho mentioned in the Book of Joshua). Isaiah 51:9 equates this Rahab with a dragon or monster. "Rahab" is the English transliteration of רהב (reb) with the several meanings: pride, a mythical sea-monster, or Egypt (as an emblematic name). Dell Studio 1458 BatteryIn the Douay-Rheims version, translated via Medieval Latin from the Vulgate, the word reb is rendered "the proud one" in Isaiah 51:9 and Job 26:12 and "the power of the sea" in Psalm 88:10 (Psalm 88 is equivalent to Psalm 89 in other versions due to different verse numbering in the Vulgate). The connection between the sea-monster and "Leviathan the serpent" is made in Isaiah 27:1. Dell Latitude D410 Battery

In Jewish astronomy this is also identified with the North Pole, the star Thuban which, around 4,500 years ago, was the star in the Draco constellation's "tail".[13] However this can also have been either the celestial pole or the ecliptic pole. The ancient observers noted that Draco was at the top of the celestial pole, giving the appearance that stars were "hanging" from itDell Inspiron 9100 Battery, and in Hebrew it is referred to as Teli, from talah (תלה) – to hang.[17] Hebrew writers from Arabic-speaking locations identified the Teli as Al Jaz'har, which is a Persian word for a "knot" or a "node" because of the intersection of the inclination of the orbit of a planet from the elliptic that forms two such nodes. In modern astronomy these are called the ascending node and the descending nodeDell Inspiron XPS Battery, but in medieval astronomy they were referred to as "dragon's head" and "dragon's tail".[18]

The Merthyr Synagogue features a dragon on the front gable.[19]

East and Southeast Asian

Dragon sculpture on top of Longshan Temple, Taipei, Taiwan.

Chinese dragon

Main article: Chinese dragon

In China, depiction of the dragon (traditional:龍;simplified:龙) can be found in artifacts from the Shang and Zhou dynasties with examples dating back to the 16th century BC.[20] Archaeologist Zhōu Chong-Fa believes that the Chinese word for dragon is an onomatopoeia of the sound thunder makes. Dell Inspiron 1320n Battery The Chinese name for dragon is pronounced "lóng" in Mandarin Chinese[20] or "lùhng" in the Cantonese.[22] Sometime after the 9th century AD, Japan adopted the Chinese dragon through the spread of Buddhism.[20] Although the indigenous name for a dragon in Japanese is tatsu (たつ?), a few of the Japanese words for dragon stem from the Chinese word for dragonDell Inspiron 1320 Battery, namely, "ryū" (りゅう?) or "ryō" (りょう?) (traditional:龍;simplified:竜).[20] The Vietnamese word for dragon is "rồng" (hán tự:龍) and the Korean word for dragon is "ryong" (hangul:용) (hanja:龍).

The Chinese dragon (simplified Chinese: 龙; traditional Chinese: 龍; pinyin: lóng) is the highest-ranking animal in the Chinese animal hierarchy, strongly associated at one time with the emperor and hence power and majesty (the mythical bird fenghuang was the symbol of the Chinese empress) Dell Inspiron mini 9n Battery, still recognized and revered. Its origins are vague, but its "ancestors can be found on Neolithic pottery as well as Bronze Age ritual vessels."[23] Tradition has it composed of nine different animals, with nine sons, each with its own imagery and affiliations. It is the only mythological animal of the 12 animals that represent the Chinese calendar. 2012 is the Chinese year of the Water DragonDell Inspiron mini 910 Battery.

Japanese

Main article: Japanese dragon

Japanese dragon myths amalgamate native legends with imported stories about dragons from China, Korea and India. Like these other Asian dragons, most Japanese ones are water deities associated with rainfall and bodies of water, and are typically depicted as large, wingless, serpentine creatures with clawed feet. Gould writes (1896:248),[24] the Japanese dragon is "invariably figured as possessing three claws"Dell Inspiron mini 9 Battery.

Vietnam

Vietnamese dragons (Vietnamese: rồng or long 龍) are symbolic creatures in the folklore and mythology of Vietnam. According to an ancient creation myth, the Vietnamese people are descended from a dragon and a fairy. To Vietnamese people, the dragon brings rain, essential for agriculture. It represents the emperor, the prosperity and power of the nationDell Inspiron 910 Battery. Like the Chinese dragon, the Vietnamese dragon is the symbol of yang, representing the universe, life, existence, and growth. Extant references to the Vietnamese Dragon are rare now, due to the fierce changes in history that accompanied the sinicization of the Nguyễn Dynasty.

Java

For the description in Indonesian see id:Naga Jawa.

Link to read 'id:Naga Jawa' translated into English

The Javanese Dragon (Naga Jawa in Javanese) is a creature of mythology, the world serpentDell Inspiron 11z Batteryof traditional Javanese mythology. It is a derivative from the Hindu Shiva with Javanese animism. In a wayang theater story a snake (Nāga) god named Sanghyang Anantaboga or Antaboga is supposedly as a guardian deity in the bowels of the earth. The Javanese dragon is described as a figure of a giant magic snake without, and wearing a crown on his headDell Inspiron mini 10 Battery. Sometimes the Javanese Dragon is depicted wearing earrings and a necklace of gold jewelry. Unlike the Chinese Dragon and European Dragon, the Javanese Dragon Java looks very unique and special because it wears a crown like a king and had no legs. Compare with the Chinese dragon which has four legs and horns on its head, and the European dragon which is like a giant long-necked lizard with wide wingsDell Inspiron mini 1010 Battery.

Modern depictions

In the early 20th century sculpture of the Norwegian artist Gustav Vigeland, inspired by Medieval art, dragons are a frequent theme—as symbols of sin but also as a nature force, fighting against man.

Dragons and dragon motifs are featured in many works of modern literature, particularly within the fantasy and science fiction genres. Prominent works depicting dragons include J.R.R. Tolkien’s The Hobbit, J. K. Rowling’s Harry Potter novels, and Anne McCaffrey’s Dragonriders of PernDell Inspiron mini 1010n Battery.

The popular role playing game system Dungeons & Dragons (D&D) makes heavy use of dragons, and has served as inspiration for many other games' dragons. Though dragons usually serve as adversaries, they can be either good or evil, with their alignment being determined by their color (species). For example, a red dragon is evil and breathes fireDell Inspiron mini 1011 Battery.

Some modern pseudo-biological accounts of dragons give them the generic name Draco, although the generic name Draco is used in real-world biology for a genus of small gliding agamid lizard. An infectious disease called Dracunculiasis, caused by infection with the Guinea worm which grows up to 3 feet (0.91 m) long before emerging from its hostDell Inspiron 14z Battery, also derives its name from dragons (literally "infestation with little dragons"), based on the burning pain experienced by sufferers.

Some creationists believe that dragons of mythology were actually dinosaurs, and that they died out with other creatures around the end of the ice age.[27][28]

Animals that may have inspired dragons

Nile crocodiles, today very restricted in range, were in ancient times occasionally found in Southern Europe, having swum across the MediterraneanDell Inspiron 1470 Battery. Such wayward crocodiles may have inspired dragon myths.[9] Skeletons of whales, as well as dinosaur and mammalian fossils may have been occasionally mistaken for the bones of dragons and other mythological creatures; for example, a discovery in 300 BC in Wucheng[disambiguation needed], Sichuan, China, was labeled as such by Chang Qu. Dell Inspiron 15z Battery Adrienne Mayor has written on the subject of fossils as the inspiration for myths in her book The First Fossil Hunters,[30] and in an entry in the Encyclopedia of Geology she wrote: "Fossil remains generated a variety of geomyths speculating on the creatures' identity and cause of their destruction. Many ancient cultures, from China and India to Greece, America, and Australia, told tales of dragonsDell Inspiron 1570 Battery, monsters, and giant heroes.."[31] In Australia, stories of such creatures may have referred to the land crocodiles, Quinkana sp., a terrestrial crocodile which grew to 5 to possibly 7 metres long, or the 4 tonne monitor lizard Varanus priscus (formerly Megalania prisca) a giant carnivorous goanna that might have grown to 7 metres, and weighed up to 1,940 kilogramsdell inspiron 500M battery, or rainbow serpents (possibly Wonambi naracoortensis) that were part of the extinct megafauna of Australia.[32] Today the Komodo monitor lizard Varanus komodoensis is known in English as the Komodo dragon.

In the book An Instinct for Dragons[33] anthropologist David E. Jones suggests a hypothesis that humans just like monkeys have inherited instinctive reactions to snakesdell inspiron 600M battery, large cats and birds of prey. Dragons have features that are combinations of these three. An instinctive fear for these three would explain why dragons with similar features occur in stories from independent cultures on all continents. Other authors have suggested that especially under the influence of drugs or in dreams, this instinct may give rise to fantasies about dragons, snakes, spiders, etc. dell inspiron 630M battery, which would explain why these symbols are popular in drug culture.

Another explanation to the folklore dragons does however not rely on human instinct, but on the assumption that fossil remains of dinosaurs gave rise to similar speculations all over the world.

Cartography

There is a widespread belief that earlier cartographers used the Latin phrase hic sunt dracones, i.e., "the dragons are here", or "here be dragons"dell inspiron 640M battery, to denote dangerous or unexplored territories, in imitation of the infrequent medieval practice of putting sea serpents and other mythological creatures in blank areas of maps. However the only known use of this exact phrase is in the Latin form "HC SVNT DRACONES" on the Lenox Globe (ca. 1503–07). dell inspiron 6000 battery

Another map that contains dragons is the one of Bishop Olaus Magnus's. The Carta Marina map of Scandinavia (1539) has many monsters in the northern sea, as well as a winged, bipedal, predatory land animal resembling a dragon in northern Lapland.

The Devil (from Greek: διάβολος or diábolos = 'slanderer' or 'accuser')[1] is believed in many religions and cultures to be a powerfuldell inspiron 6400 battery, supernatural entity that is the personification of evil and the enemy of God and humankind. The nature of the role varies greatly. It ranges from being an effective opposite force to the creator god at one extreme, where both are locked in an eons long holy war for human souls on what may seem even terms (to the point of dualistic ditheism/bitheism) dell inspiron 9200 battery, to being just a comical figure of fun or even an abstract aspect of the individual human condition at the other.

Whilst mainstream Judaism contains no overt concept of a devil, Christianity and Islam have variously regarded the Devil as a rebellious fallen angel or demon that tempts humans to sin, if not commit evil deeds himselfdell inspiron 9300 battery. In these religions – particularly during periods of division or external threat – the Devil has assumed more of a dualistic status commonly associated with heretics, infidels, and other unbelievers. As such, the Devil is seen as an allegory that represents a crisis of faith, individualism, free will, wisdom and enlightenment.

In mainstream Christianity, God and the Devil are usually portrayed as fighting over the souls of humansdell inspiron 9400 battery, with the Devil seeking to lure people away from God and into Hell. The Devil commands a force of evil spirits, commonly known as demons.[2] The Hebrew Bible (or Old Testament) describes the Adversary (Ha-satan) as an angel who instigates tests upon humankind.[3][4] Many other religions have a trickster or tempter figure that is similar to the Devil. Modern conceptions of the Devil include the concept that it symbolizes humans' own lower nature or sinfulnessdell inspiron e1505 battery.

People often put the concept of the Devil to use in social and political conflicts, claiming that their opponents are influenced by the Devil or even willingly supporting the Devil. In addition, the Devil has also been used to explain why others hold beliefs that are considered to be false and ungodlydell inspiron e1705 battery.

Etymology

Devil is a synonym for Satan / Ha-Satan, which descends from the Middle English devel, from Old English dēofol, that in turn represents an early Germanic borrowing of Latin diabolus (also the source of "diabolical"). This in turn was borrowed from Ancient Greek diábolos (διάβολος), "slanderer",[5] from diaballein "to slander": dia- "across, through" + ballein "to hurl"dell latitude d820 battery. In the New Testament, "Satan" occurs more than 30 times in passages alongside diábolos (Ancient Greek for "the devil"), referring to the same person or thing as Satan.

Accounts in the Abrahamitic religions

Judaism

In mainstream Judaism there is no concept of a devil like in mainstream Christianity or Islam. Texts make no direct link between the serpent that tempts Eve in the Garden of Eden from Genesis and references to a Satan in the first book of Chronicles[3] and in Job. dell latitude d830 battery In Hebrew, the biblical word ha-satan (השָׂטָן) means "the adversary"[6] or the obstacle, or even "the prosecutor" (recognizing that God is viewed as the ultimate Judge). As much as the Devil exists in any form of Judaism, his role is as an adversary and an accuser which is assigned rather than assumed.

Hebrew Apocrypha

The Apocrypha are religious writings which are not generally accepted as scripture by Judaism and many modern-day Protestant sects of ChristianityDell Latitude E5500 Battery. In the Book of Wisdom, the devil is represented as the one who brought death into the world.[7]

The 2nd Book of Enoch, also called the Slavonic Book of Enoch, contains references to a Watcher Grigori called Satanael.[8] It is a pseudepigraphic text of an uncertain date and unknown authorshipDell Latitude E5400 Battery. The text describes Satanael as being the prince of the Grigori who was cast out of heaven[9] and an evil spirit who knew the difference between what was "righteous" and "sinful".[10] A similar story is found in the book of 1 Enoch; however, in that book, the leader of the Grigori is called Semjâzâ.

In the apocryphal literature, Satan rules over a host of angels.[11] Mastema, who induced God to test Abraham through the sacrifice of Isaac, is identical with Satan in both name and nature. DELL Latitude E5410 Battery

For the Chasidic Jews of the eighteenth century, Ha-satan was Baal Davar.[13] The Book of Enoch contains references to Satariel, thought also to be Sataniel and Satan'el (etymology dating back to Babylonian origins). The similar spellings mirror that of his angelic brethren Michael, Raphael, Uriel and Gabriel, previous to his expulsion from HeavenDELL Latitude E5510 Battery.

Christianity

Main article: Christian teaching about the Devil

See also: War in Heaven

The Devil depicted in the Temptation of Christ, by Ary Scheffer, 1854.

In mainstream Christianity the Devil is known as Satan and sometimes as Lucifer, although it has been noted that the reference in Isaiah 14:12 to Lucifer, or the Son of the Morning, is a reference to the Babylonian king.[14] Some modern Christians consider the Devil to be an angel who, along with one-third of the angelic host (the demons) dell latitude e6400 battery rebelled against God and has consequently been condemned to the Lake of Fire. He is described as hating all humanity, or more accurately creation, opposing God, spreading lies and wreaking havoc on the souls of mankind. Other Christians consider the devil in the Bible to refer figuratively to human sin and temptation and to any human system in opposition to Goddell latitude e6500 battery.

Satan is often identified as the serpent who convinced Eve to eat the forbidden fruit; thus, Satan has often been depicted as a serpent. Though this identification is not present in the Adam and Eve narrative, this interpretation goes back at least as far as the time of the writing of the book of Revelation, which specifically identifies Satan as being the serpent (Rev. 20:2) DELL Latitude E6510 Battery.

In the Bible, the devil is identified with "The dragon" and "the old serpent" in the Book of Revelation 12:9, 20:2 have also been identified with Satan, as have "the prince of this world" in the Book of John 12:31, 14:30; "the prince of the power of the air" also called Meririm, and "the spirit that now worketh in the children of disobedience" in the Book of Ephesians 2:2DELL Precision M2400 Battery; and "the god of this world" in 2 Corinthians 4:4.[15] He is also identified as the dragon in the Book of Revelation (e.g.[16]), and the tempter of the Gospels (e.g.[17]).

Beelzebub is originally the name of a Philistine god (more specifically a certain type of Baal, from Ba‘al Zebûb, lit. "Lord of Flies") but is also used in the New Testament as a synonym for Satan. A corrupted version, "Belzeboub," appears in The Divine ComedyDELL Precision M4400 Battery.

In other, non-mainstream, Christian beliefs (e.g. the beliefs of the Christadelphians) the word "satan" in the Bible is not regarded as referring to a supernatural, personal being but to any 'adversary' and figuratively refers to human sin and temptation.[18]

Islam

Main article: Devil (Islam)

In Islam the Devil is referred to as Iblis (Arabic: Shaitan, a word referring to evil devil-like beings). According to the Qur'an, God created Iblis out of "smokeless fire" (along with all of the other jinn) and created man out of clayDELL Precision M4500 Battery. The primary characteristic of the Devil, besides hubris, is that he has no power other than the power to cast evil suggestions into the heart of men and women.

According to Muslim theology, Iblis was expelled from the grace of God when he disobeyed God by choosing not to pay homage to Adam, the father of all mankind. He claimed to be superior to Adam, on the grounds that man was created of earth unlike himselfDELL Precision M6400 Battery. As for the angels, they prostrated before Adam to show their homage and obedience to God. However, Iblis, adamant in his view that man is inferior, and unlike angels was given the ability to choose, made a choice of not obeying God. This caused him to be expelled by God, a fact that Iblis blamed on humanity. Initially, the Devil was successful in deceiving Adam, but once his intentions became clearDELL Precision M6500 Battery, Adam and Eve repented to God and were freed from their misdeeds and forgiven. God gave them a strong warning about Iblis and the fires of Hell and asked them and their children (humankind) to stay away from the deceptions of their senses caused by the Devil.

According to the verses of the Qur’an, the Devil's mission until the Qiyamah or Resurrection Day (yaum-ul-qiyama) is to deceive Adam's children (mankind) dell xps m1210 battery. After that, he will be put into the fires of Hell along with those whom he has deceived. The Devil is also referred to as one of the jinns, as they are all created from the smokeless fire. The Qur'an does not depict Iblis as the enemy of God, as God is supreme over all his creations and Iblis is just one of his creations. Iblis's single enemy is humanitydell xps m1330 battery. He intends to discourage humans from obeying God. Thus, humankind is warned to struggle (jihad) against the mischiefs of the Satan and temptations he puts them in. The ones who succeed in this are rewarded with Paradise (jannath ul firdaus), attainable only by righteous conduct.

Bahá'í Faith

In the Bahá'í Faith, a malevolent, superhuman entity such as a devil or satan is not believed to exist. dell xps m1530 battery These terms do, however, appear in the Bahá'í writings, where they are used as metaphors for the base nature of man. Human beings are seen to have free will, and are thus able to turn towards God and develop spiritual qualities or turn away from God and become immersed in their self-centered desires. Individuals who follow the temptations of the self and do not develop spiritual virtues are often described in the Bahá'í writings with the word satanic. dell xps m1710 battery The Bahá'í writings also state that the devil is a metaphor for the "insistent self" or "lower self" which is a self-serving inclination within each individual. Those who follow their lower nature are also described as followers of "the Evil One".

Yazidism

An alternate name for the main deity in the tentatively Indo-European pantheon of the Yazidi, Malek Taus, is Shaitan.dell xps m1730 battery Rather than Satanic, however, Yazidism is better understood as a remnant of a pre-Islamic Middle Eastern religion, and/or a ghulat Sufi movement founded by Shaykh Adi. The connection with Satan, originally made by Muslim outsiders, attracted the interest of 19th-century European travelers and esoteric writers.

Related pre-Abrahamitic and post-Abrahamitic beliefsDell Vostro 1710 Battery

Neopaganism

Christian tradition has frequently identified pagan religions and witchcraft with the influence of Satan. In the Early Modern Period, the Church accused alleged witches of consorting and conspiring with Satan. Several modern conservative Christian writers, such as Jack Chick and James Dobson, have depicted today's neopagan and witchcraft religions as explicitly SatanicDell Vostro 1720 Battery.

Few neopagan reconstructionist traditions recognize Satan or the Devil outright. However, many neopagan groups worship some sort of Horned God, for example as a consort of the Great Goddess in Wicca. These gods usually reflect mythological figures such as Cernunnos or Pan, and any similarity they may have to the Christian Devil seems to date back only to the 19th centurydell studio xps 1340 battery, when a Christian reaction to Pan's growing importance in literature and art resulted in his image being translated to that of the Devil.[23]

New Age movement

Participants in the New Age movement have widely varied views about Satan, the Devil, and so forth. In some forms of Esoteric Christianity Satan remains as a being of evil, or at least a metaphor for sin and materialism, but the most widespread tendency is to deny his existence altogetherdell studio xps 13 battery. Lucifer, on the other hand, in the original Roman sense of "light-bringer", occasionally appears in the literature of certain groups as a metaphorical figure quite distinct from Satan, and without any implications of evil. For example, Theosophy founder Madame Blavatsky named her journal Lucifer since she intended it to be a "bringer of light". Many New Age schools of thought follow a nondualistic philosophy that does not recognize a primal force for evildell Studio XPS 16 battery.

The Baphomet, adopted symbol of some Left-Hand Path systems, including Theistic Satanism.

Even when a dualistic model is followed, this is more often akin to the Chinese system of yin and yang, in which good and evil are explicitly not a complementary duality. Schools of thought that do stress a spiritual war between good and evil or light and darkness include the philosophy of Rudolf Steiner, Agni Yoga, and the Church Universal and Triumphantdell Studio XPS 1640 battery.

Satanism

Main articles: Satanism, LaVeyan Satanism, Setianism, and Theistic Satanism

Some religions worship the Devil. This can be in a polytheistic sense where "God", Satan, and others are all deities with Satan as the preferred patron; or it can be from a more monotheistic viewpoint, where God is regarded as a true god, but is nevertheless defied.

Some variants deny the existence of God and the Devil altogether, but still call themselves Satanistsdell Studio XPS 1645 battery, such as Anton LaVey's Church Of Satan which sees Satan as a representation of the primal and natural state of mankind.[24]

Much "Satanic" lore does not originate from actual Satanists, but from Christians. Best-known would be the medieval folklore and theology surrounding demons and witches. A more recent example is the Satanic ritual abuse scare of the 1980s – beginning with the memoir Michelle Remembersdell Studio XPS 1647 battery – which depicts Satanism as a vast (and unsubstantiated) conspiracy of elites with a predilection for child abuse and human sacrifice. This genre regularly describes Satan as actually appearing in person in order to receive worship.[25]

Similar concepts in other religions

Zoroastrianism

Main article: Angra Mainyu

In the Gathas, the oldest texts of the Zoroastrian Avesta, believed to have been composed by Zoroaster himself, the poet does not mention a manifest adversary. Ahura Mazda's Creation is "truth", asha. The "lie" (druj) is manifest only as decay or chaos, not an entitydell Studio 17 battery.

Later, in Zurvanism (Zurvanite Zoroastrianism), Ahura Mazda and the principle of evil, Angra Mainyu, are the "twin" offspring of Zurvan, 'Time'. No trace of Zurvanism exists after the 10th century.

Today, the Parsis of India largely accept the 19th century interpretation that Angra Mainyu is the 'Destructive Emanation' of Ahura Mazda. Instead of struggling against Mazda himself, Angra Mainyu battles Spenta Mainyu, Mazda's 'Creative Emanation.'dell Studio 1749 battery

Hinduism

In contrast to Christianity and Islam, Hinduism does not recognize any central evil force or entity such as the Devil opposing God and man. Hinduism does recognize that different beings (e.g., asuras) and entities can perform evil acts, under the temporary dominance of the guna of tamas, and cause worldly sufferings. The Rajasic and Tamasic Gunas of Maya are considered especially close to the Abrahamic conceptdell Studio 1745 battery, the hellish parts of the Ultimate Delusion called "Prakriti". An embodiment of this is the concept of Advaita (non-dualism) where there is no good or evil but simply different levels of realization.

On the other hand in Hinduism, which provides plenty of room for counterpoint, there is also the notion of dvaita (dualism) where there is interplay between good and evil tendencies.[26] A prominent asura is Rahu whose characteristics are similar to those of the Devildell Studio 1747 battery. However, Hindus, and Vaishnavites in particular, believe that an avatar of Vishnu incarnates to defeat evil when evil reaches its greatest strength. The concept of Guna and Karma also explain evil to a degree, rather than the influence of a devil.

To be more specific, Hindu philosophy defines that the only existing thing (Truth) is the Almighty God. So, all the asuric tendencies are inferior and mostly exist as illusions in the mindDell Inspiron 1440 Battery. Asuras are also different people in whom bad motivations and intentions (tamas) have temporarily outweighed the good ones (Sattva). Different beings like siddha, gandharva, yaksha etc. are considered beings unlike mankind, and in some ways superior to men.

In Ayyavazhi, officially an offshoot of Hinduism prominent in Tamil Nadu (a southern state in India with Dravidian heritage), followers, unlike most other branches of HinduismDell Inspiron 1750 Battery, believes in a Satan-like figure, Kroni. Kroni, according to Ayyavazhi is the primordial manifestation of evil and manifests in various forms of evil, i.e., Ravana, Duryodhana, etc., in different ages or yugas. In response to such manifestation of evil, believers, in Ayya-Vazhi religion believe that God, as Vishnu manifests in His Avatars such as Rama and Krishna to defeat evil. EventuallyDell Inspiron 14 Battery, the Ekam with the spirit (the spirit taken by Narayana only for incarnating in the world) of Narayana incarnates in the world as Ayya Vaikundar to destroy the final manifestaion of Kroni, Kaliyan.

Kroni, the spirit of Kali Yuga is said to be omnipresent in this age and that is one reason followers of Ayya Vazhi, like most Hindus, believe that the current yuga, Kali Yuga is so degradedDell Inspiron 1464 Battery.

Buddhism

Main article: Mara (demon)

A devil-like figure in Buddhism is Mara. He is a tempter, who also tempted Gautama Buddha by trying to seduce him with the vision of beautiful women who, in various legends, are often said to be Mara's daughters. Mara personifies unskillfulness, the "death" of the spiritual life. He tries to distract humans from practicing the spiritual life by making the mundane alluring or the negative seem positiveDell Inspiron 15 Battery. Another interpretation of Mara is that he is the desires that are present in ones own mind preventing the person from seeing the truth. So in a sense Mara is not an independent being but a part of one's own being that has to be defeated. In daily life of the Buddha the role of devil has been given to DevadattaDell Inspiron 1564 Battery.

Ancient Egypt

Main articles: Set (mythology) and Apep

In the Ausarian drama we find that Ausar (Greek: Osiris) is chopped into 13 pieces by Set. Auset (Isis) collects all of his pieces save his phallus. Horus, son of Ausar and Auset sets out to avenge the death and dismemberment of his father by confronting Set. Horus is victorious over Set and Ausar, being brought back from the dead becomes lord of the underworldDell Inspiron 17 Battery. It is this drama that gives us the cosmic conflict between good and evil, evil being embodied by Set. This is not to say that Set was always seen as an evil character in Ancient Egyptian theology. There are many times in Ancient Egyptian history where conflicts between different "houses" lead to the depreciation of one god relative to another. Dell Inspiron 1764 Battery

As in most polytheistic faiths, the characters involved differentiate themselves from the Western tradition of a devil in that all the gods are closely related. In this case, numerous historic texts suggest that Set is the Uncle or Brother of Horus and in the "defeat" of Set, we see another separation from the norm in the devouring/assimilation of Set into Horus with the result of Horus having depictions of both the falcon head and the (unknown animal) head of SetDell Studio 1440 Battery. This (like Buddhism) represents a dissolution of dichotomy.

World folklore

In the Western Christian tradition, the Devil has entered popular folklore, particularly in his role as a trickster figure. As such, he is found as a character in a wide number of traditional folktales and legends from Ireland, Newfoundland, Italy and the United Kingdom, where he often attempts to trick or outwit other charactersDell Studio 1440n Battery. In some of these tales, the Devil is portrayed as more of a folk villain than as the personification of evil. The Devil also features prominently in a number of hagiographical tales, or tales of the saints such as the popular tale of St. Dunstan, many of which may fall outside the authorized religious canon. The Devil is also a recurring feature in tales explaining the etymology of geographical names, lending his name to natural formations such as The Devil's ChimneyDell Studio 1535 Battery.

David Ferriero, Archivist of the United States, claims to have only one piece of correspondence with the Devil in the nation's vast and varied collections. A letter sent from Baltimore at the end of the American Civil War to Confederate leader Jefferson Davis bemoans the rebellion against the United States and is signed by "the Devil".Dell Studio 1536 Battery

Other names

Further information: Names of the Devil in Christianity

Demons

In some religions and traditions, these titles are separate demons; others identify these names as guises of The Devil. Even when thought of as individual demons, some are often thought of being under the Devil's direct control. This identifies only those thought of as the Devil; List of demons has a more general listingDell Studio 1537 Battery.

Azazel, Asael (Hebrew): King of Devils

Baphomet, a demon supposedly worshiped by the Knights Templar

Beelzebub, ba'al zevuv בעל זבוב (Hebrew): Master of the flies or Lord of the Flies (Matthew 10:25)

Belial, Beliar, Bheliar (Hebrew): without master, despicableness of the earth, Lord of Pride (2 Corinthians 6:15)

Mastema, a devil in the Book of Jubilees

Sammael, Samiel, Sammael (Hebrew): "Poison of God"

Titles

These are titles that almost always refer to the Devil.

666 or 616, the Number of the BeastDell Studio 1555 Battery

Angra Mainyu, Ahriman: "malign spirit", "unholy spirit"

Several religious authors throughout history have advanced the notion that the god of the Abrahamic Bible and its sequels is consistent in character with the Devil. They make the case that the Biblical God is a divine force that wreaks suffering, death, and destruction and that tempts or commands humanity into committing mayhem and genocideDell Studio 1557 Battery.

These writings refer to the Biblical God variously as "a demiurgus", "an evil angel", "the devil god", "the Prince of Darkness", "the source of all evil", "a demon", "a cruel, wrathful, warlike tyrant", "Satan", "the devil", and "the first beast of the book of Revelation".

Many of the authors criticize only Jehovah, the God of the Abrahamic scriptures (Tanakh), in contrast with the "true god" of the New TestamentDell Studio 1558 Battery. However, other authors apply their condemnation to the entire godhead of Judaism, Christianity, and Islam.

The authors assert their claims by reference to a number of passages in Biblical scripture describing actions of God that they say are evil or Devil-like. Many of the authors have been severely chastised for their writings, and their followers killed.

Satan (Hebrew: הַשָּׂטָן ha-Satan), "the opposer",[1] is the title of various entities, both human and divine, who challenge the faith of humans in the Hebrew Bible. Dell Studio 1735 Battery In Christianity the title became a personal name, and "Satan" changed from an accuser appointed by God to test men's faith to the chief of the rebellious fallen angels ("the devil" in Christianity, "Shaitan" in Arabic, the term used by Arab Christians and Muslims).[3] In Islam, a shayṭān is any evil creature, whether human, animal or spirit. With the definite article, the Shayṭān is Iblis, the DevilDell Studio 1737 Battery.

Hebrew Bible

The original Hebrew term, satan, is a noun from a verb meaning primarily to, “obstruct, oppose,” as it is found in Numbers 22:22, 1 Samuel 29:4, Psalms 109:6.[4] Ha-Satan is traditionally translated as “the accuser,” or “the adversary.” The definite article “ha-”, English “the”, is used to show that this is a title bestowed on a being, versus the name of a being. Thus this being would be referred to as “the satan”. Dell Inspiron 1210 Battery

Ha-Satan with the definite article occurs 13 times in the Masoretic Text, in two books of the Hebrew Bible:

Satan without the definite article is used in 10 instances, of which two are translated diabolos in the Septuagint and "Satan" in the King James Version:

1 Chronicles 21:1, "Satan stood up against Israel" (KJV) or "And there standeth up an adversary against Israel" (Young's Literal Translation)[8]

Psalm 109:6b "and let Satan stand at his right hand" (KJV)[9] or "let an accuser stand at his right hand." (ESV, etc.)Dell Inspiron Mini 12 Battery

The other eight instances of satan without the definite article are traditionally translated (in Greek, Latin and English) as "an adversary", etc., and taken to be humans or obedient angels:

Numbers 22:22,23 "and the angel of the LORD stood in the way for an adversary against him."

23 "behold, I went out to withstand thee,"

1 Samuel 29:4 The Philistines say: "lest he [David] be an adversary against us"Dell Latitude E4300 Battery

2 Samuel 19:22 David says: "[you sons of Zeruaiah] should this day be adversaries (plural) unto me?"

1 Kings 5:4 Solomon writes to Hiram: "there is neither adversary nor evil occurrent.

1 Kings 11:14 "And the LORD stirred up an adversary unto Solomon, Hadad the Edomite"[10]

1 Kings 11:23 "And God stirred him up an adversary, Rezon the son of Eliadah"

25 "And he [Rezon] was an adversary to Israel all the days of Solomon"Dell Latitude E4310 Battery

Book of Job

In the Book of Job, ha-Satan is a member of the Divine Council, "the sons of God" who are subservient to God. Ha-Satan, in this capacity, is many times translated as "the prosecutor", and is charged by God to tempt humans and to report back to God all who go against His decrees. At the beginning of the book, Job is a good person "who feared God and turned away from evil" Dell Vostro 1310 Battery (Job 1:1), and has therefore been rewarded by God. When the Divine Council meets, God informs ha-Satan about Job's blameless, morally upright character. Between Job 1:9–10 and 2:4–5, ha-Satan merely points out that God has given Job everything that a man could want, so of course Job would be loyal to God; if all Job has been given, even his health, were to be taken away from him, however, his faith would collapseDell Vostro 1320 Battery. God therefore grants ha-Satan the chance to test Job.[11] Due to this, it has been interpreted that ha-Satan is under God's control and cannot act without God's permission. This is further shown in the epilogue of Job in which God is speaking to Job, ha-Satan is absent from these dialogues. "For Job, for [Job's] friends, and for the narratorDell Vostro 1510 Battery, it is ultimately Yahweh himself who is responsible for Job's suffering; as Yahweh says to the 'satan', 'You have incited me against him, to destroy him for no reason.'" (Job 2:3) [7]

In the Septuagint the Hebrew ha-Satan in Job and Zechariah is translated by the Greek word diabolos (slanderer), the same word in the Greek New Testament from which the English word devil is derived. Where satan is used of human enemies in the Hebrew BibleDell Vostro 1520 Battery, such as Hadad the Edomite and Rezon the Syrian, the word is left untranslated but transliterated in the Greek as satan, a neologism in Greek.[12] In Zechariah 3 this changes the vision of the conflict over Joshua the High Priest in the Septuagint into a conflict between "Jesus and the devil", identical with the Greek text of MatthewDell Vostro 2510 Battery.

Apocrypha

The Book of Enoch contains references to Satariel, thought also to be Sataniel and Satan'el (etymology dating back to Babylonian origins). The similar spellings mirror that of his angelic brethren Michael, Raphael, Uriel and Gabriel, previous to the fall from Heaven.

The Second Book of Enoch, also called the Slavonic Book of Enoch, contains references to a Watcher (Grigori) called Satanael. Dell Inspiron 1410 Battery It is a pseudepigraphic text of an uncertain date and unknown authorship. The text describes Satanael as being the prince of the Grigori who was cast out of heaven[14] and an evil spirit who knew the difference between what was "righteous" and "sinful".[15] A similar story is found in the book of 1 Enoch; however, in that book, the leader of the Grigori is called SemjâzâDell Vostro 1014 Battery.

In the Book of Wisdom, the devil is represented as the being who brought death into the world.[16]

In the Ascension of Isaiah and the Life of Adam and Eve, Satan rules over a host of angels.[17]

Mastema, in the Book of Jubilees, induces God to test Abraham through the sacrifice of Isaac. He is identical to Satan in both name and nature. Dell Vostro 1014n Battery

Belief systems

Judaism

The Talmud mentions the Satan in many places. In all of these places, the Satan is an agent of God, and has no independent existence. Sometimes the Satan is conflated with various demons, such as Asmodai. At times there is even some sympathy for him. Commenting on the Book of Job, the rabbis express sympathy that his job was to "break the barrel but not spill any wine." Dell Vostro 1015 Battery

In Kabbalistic literature and its derivative, Hasidic literature, the Satan is seen as an agent of God whose job is to tempt one into sin, and then turn around and accuse the sinner on high. An additional understanding of Satan is from a parable to a prostitute who is hired by the King (God) to tempt his son (a Jew) Dell Vostro 1088 Battery. The prostitute has to do the best she can to tempt the son; but deep down she hopes the son will pass the test. Similarly, Kabbalistic/Hasidic thought sees the Satan in the same situation. His job is to tempt us as best he can, and then turn around and accuse us; deep down, however, he hopes we will resist his blandishments.

The Chasidic Jews of the 18th century, associated ha-Satan with Baal Davar. Dell Vostro A840 Battery

Christianity

The coat of arms of Arkhangelsk (Russia) depicts archangel Michael fighting against Satan.

Main article: Christian teaching about the Devil

See also: War in Heaven

In Christianity, terms that are synonymous with "Satan" include:

The most common English synonym for "Satan" is "Devil", which descends from Middle English devel, from Old English dēofol, that in turn represents an early Germanic borrowing of Latin diabolus (also the source of "diabolical")Dell Vostro A860 Battery. This in turn was borrowed from Greek diabolos "slanderer", from diaballein "to slander": dia- "across, through" + ballein "to hurl".[21] In the New Testament, "Satan" occurs more than 30 times in passages alongside Diabolos (Greek for "the devil"), referring to the same person or thing as Satan.[22]

Beelzebub, meaning "Lord of Flies", is the contemptuous name given in the Hebrew Bible and New Testament to a Philistine god whose original name has been reconstructed as most probably "Ba'al Zabul", meaning "Baal the Prince".Dell XPS M2010 Battery

Satan is traditionally identified as the serpent who convinced Eve to eat the forbidden fruit; thus, Satan has often been depicted as a serpent.

The Book of Revelation twice refers to "the dragon, that ancient serpent, who is called the devil and Satan," (12:9, 20:2). The Book of Revelation also refers to "the deceiver," from which is derived the common epithet "the great deceiver." Dell Inspiron 1520 Battery

Other terms identified with Satan include "the prince of this world" in the Book of John 12:31, 14:30; "the prince of the power of the air" also called Meririm, and "the spirit that now worketh in the children of disobedience" in the Book of Ephesians 2:2; and "the god of this world" in 2 Corinthians 4:4. Dell Inspiron 1521 Battery

From the fourth Century Lucifer is sometimes used in Christian theology to refer to Satan, as a result of identifying the fallen "son of the dawn" of Isaiah 14:12 with the "accuser" of other passages in the Old Testament.

Satan as depicted in the Ninth Circle of Hell in Dante Alighieri's Inferno, illustrated by Gustave DoréDell Inspiron 1720 Battery.

In traditional Christian understanding of the holy Hebrew scriptures, the Torah, Satan is a synonym for the Devil. For most Christians, he is believed to be an angel who rebelled against God—and also the one who spoke through the serpent and seduced Eve into disobeying God's command. His ultimate goal is to lead people away from the love of God—to lead them to fallacies which God opposesDell Inspiron 1721 Battery. Satan is also identified as the accuser of Job, the tempter in the Gospels, the secret power of lawlessness in 2 Thessalonians 2:7, and the dragon in the Book of Revelation. Before his insurrection, Satan was among the highest of all angels and the "brightest in the sky". His pride is considered a reason why he would not bow to God as all other angels did, but sought to rule heaven himselfDell Vostro 1500 Battery. The popularly held beliefs that Satan was once a prideful angel who eventually rebels against God, however, are not portrayed explicitly in the Bible and are mostly based on inference (e.g., Ezekiel 28 and Isaiah 14:12–17). In mainstream Christianity he is called "the ruler of the demons" (Matt. 12:24), "the ruler of the world" and "the god of this world". (2 Cor. 4:4) Dell Vostro 1700 Battery. The Book of Revelation describes how Satan will be cast out of Heaven, down to the earth, having "great anger" and waging war against "those who obey God's commandments and hold to the testimony of Jesus". Ultimately, Satan is thrown into the "Lake of fire", not as ruler, but as one among many, being tormented day and night forever and ever. Dell Inspiron 1420 Battery

In other Christian beliefs (e.g. the beliefs of the Christadelphians) the word "satan" in the Bible is not regarded as referring to a supernatural, personal being but to any "adversary" and figuratively refers to human sin and temptation.[27]

Islam

Main article: Devil (Islam)

Shaitan (شيطان) is the equivalent of Satan in Islam. While Shaitan (شيطان, from the root šṭn شطن) is an adjective (meaning "astray" or "distant", sometimes translated as "devil") that can be applied to both man ("al-ins", الإنس) and Jinn, Iblis (Arabic pronunciation: [ˈibliːs]) Dell Vostro 1400 Batteryis the personal name of the Devil who is mentioned in the Qur'anic account of Genesis.[28] According to the Qur'an, Iblis (the Arabic name used) disobeyed an order from Allah to bow to Adam and as a result was forced out of heaven and given respite until the day of judgment from further punishment.

When Allah commanded all of the angels to bow down before Adam (the first Human) Dell Latitude 2100 Battery, Iblis, full of hubris and jealousy, refused to obey God's command (he could do so because he had free will), seeing Adam as being inferior in creation due to his being created from clay as compared to him (created of fire).[29]

It is We Who created you and gave you shape; then We bade the angels prostrate to Adam, and they prostrate; not so Iblis (Lucifer); He refused to be of those who prostrate."

(Allah) said: "What prevented thee from prostrating when I commanded thee?" He said: "I am better than he: Thou didst create me from fire, and him from clayDell Latitude 2110 Battery.

Qur'an 7:11–12

It was after this that the title of "Shaitan" was given, which can be roughly translated as "Enemy," "Rebel," "Evil" or "Devil". Shaitan then claims that if the punishment for his act of disobedience is to be delayed until the Day of Judgment, that he will divert many of Adam's own descendants from the straight path during his period of respite. Dell Latitude D620 Battery God accepts the claims of Iblis and guarantees recompense to Iblis and his followers in the form of Hellfire. In order to test mankind and jinn alike, Allah allowed Iblis to roam the earth to attempt to convert others away from his path.[31] He was sent to earth along with Adam and Eve, after eventually luring them into eating the fruit from the forbidden tree. Dell Latitude D630 Battery

Yazidism

An alternate name for the main deity in the tentatively Indo-European pantheon of the Yazidi, Malek Taus, is Shaitan.[33] Rather than Satanic, however, Yazidism is better understood as a remnant of a pre-Islamic Middle Eastern Indo-European religion, and/or a ghulat Sufi movement founded by Shaykh Adi. The connection with Satan, originally made by Muslim outsiders, attracted the interest of 19th century European travelers and esoteric writersDell Precision M2300 Battery.

 
Bears are mammals of the family Ursidae. Bears are classified as caniforms, or doglike carnivorans, with the pinnipeds being their closest living relatives. Although there are only eight living species of bear, they are widespread, appearing in a wide variety of habitats throughout the Northern Hemisphere and partially in the Southern HemisphereSony VAIO PCG-31114V battery. Bears are found in the continents of North America, South America, Europe, and Asia.

Common characteristics of modern bears include a large body with stocky legs, a long snout, shaggy hair, plantigrade paws with five nonretractile claws, and a short tail. While the polar bear is mostly carnivorous and the giant panda feeds almost entirely on bamboo, the remaining six species are omnivorous, with largely varied diets including both plants and animalsSony VAIO PCG-31113V battery.

With the exceptions of courting individuals and mothers with their young, bears are typically solitary animals. They are generally diurnal, but may be active during the night (nocturnal) or twilight (crepuscular), particularly around humans. Bears are aided by an excellent sense of smell, and despite their heavy build and awkward gaitSony VAIO PCG-31112V battery, they can run quickly and are adept climbers and swimmers. In autumn some bear species forage large amounts of fermented fruits which affects their behaviour.[1] Bears use shelters such as caves and burrows as their dens, which are occupied by most species during the winter for a long period of sleep similar to hibernationSony VAIO PCG-31111V battery.

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Etymology

The English word "bear" comes from Old English bera and belongs to a family of names for the bear in Germanic languages, in origin from an adjective meaning "brown".Sony VAIO PCG-31113M battery In Scandinavia the word for bear is björn (or bjørn), and is a relatively common given name for males. The use of this name is ancient and has been found mentioned in several runestone inscriptions.[3] In Germanic culture, the bear was a symbol of the warrior, as evident from the Old English term beorn which can take the meaning of both "bear" and "warrior"Sony VAIO PCG-31112M battery.

The reconstructed Proto-Indo-European name of the bear is *h₂ŕ̥tḱos, whence Sanskrit r̥kṣa, Avestan arša, Greek ἄρκτος (arktos), Latin ursus, Welsh arth (whence perhaps "Arthur"), Albanian ari, Armenian arj. Also compared is Hittite ḫartagga-, the name of a monster or predator.[2] In the binomial name of the brown bear, Ursus arctos, Linné simply combined the Latin and Greek namesSony VAIO PCG-31111M battery.

The Proto-Indo-European word for bear, *h₂ŕ̥tḱos seems to have been subject to taboo deformation or replacement in some languages (as was the word for wolf, wlkwos), resulting in the use of numerous unrelated words with meanings like "brown one" (English bruin) and "honey-eater" (Slavic medved).[4] Thus some Indo-European language groups do not share the same PIE rootSony VAIO PCG-41111V battery. The theory of the bear taboo is taught to almost all beginning students of Indo-European and historical linguistics; the putative original PIE word for bear is itself descriptive, because a cognate word in Sanskrit is rakṣas, meaning "harm, injury".[5]

Evolutionary history

The family Ursidae is one of nine families in the suborder Caniformia, or "doglike" carnivores, within the order Carnivora. Bears' closest living relatives are the pinnipeds and musteloids. Sony VAIO PCG-41112M battery

The following synapomorphic (derived) traits set bears apart from related families:

presence of an alisphenoid canal

paroccipital processes that are large and not fused to the auditory bullae

auditory bullae are not enlarged

lacrimal bone is vestigial

cheek teeth are bunodont and hence indicative of a broad, hypocarnivorous (non-strictly meat-eating) diet (although hypercarnivorous (strictly meat-eating) taxa are known from the fossil record) Sony VAIO PCG-41111M battery

carnassials are flattened

Additionally, members of this family possess posteriorly oriented M2 postprotocrista molars, elongated m2 molars, and a reduction of the premolars.

Modern bears comprise eight species in three subfamilies: Ailuropodinae (monotypic with the giant panda), Tremarctinae (monotypic with the Spectacled Bear), and Ursinae (containing six species divided into one to three genera, depending upon authority) SONY VAIO PCG-21214V battery.

Fossil bears

The earliest members of Ursidae belong to the extinct subfamily Amphicynodontinae, including Parictis (late Eocene to early middle Miocene, 38–18 million years (Ma) ago) and the slightly younger Allocyon (early Oligocene, 34–30 Ma), both from North America. These animals looked very different from today's bears, being small and raccoon-like in overall appearanceSONY VAIO PCG-21213V battery, and a diet perhaps more similar to that of a badger. Parictis does not appear in Eurasia and Africa until the Miocene.[8] It is unclear whether late Eocene ursids were also present in Eurasia, although faunal exchange across the Bering land bridge may have been possible during a major sea level low stand as early as the late Eocene (~37 Ma) and continuing into the early Oligocene. SONY VAIO PCG-21212V batteryEuropean genera morphologically very similar to Allocyon, and also the much younger American Kolponomos (~18 Ma), are known from the Oligocene, including Amphicticeps and Amphicynodon.

Plithocyon armagnacensis skull

The raccoon-sized, dog-like Cephalogale is the oldest-known member of the subfamily Hemicyoninae which first appeared during the middle Oligocene in Eurasia ~30 Ma ago. The subfamily also includes the younger genera Phoberocyon (~ 20–15 Ma), and Plithocyon (~ 15–7 Ma) SONY VAIO PCG-21212M battery.

A Cephalogale-like species gave rise to the genus Ursavus during the early Oligocene (30–28 Ma); this genus proliferated into many species in Asia and is ancestral to all living bears. Species of Ursavus subsequently entered North America together with Amphicynodon and Cephalogale during the early Miocene (21–18 Ma) SONY VAIO PCG-21211M battery.

Members of living lineages of bears diverged from Ursavus ~20 Ma ago, likely via the species Ursavus elmensis. Based on genetic and morphological data, the subfamily Ailuropodinae (pandas) was the first to diverge from other living bears ~19 Ma ago, although no fossils of this group have been found pre-dating about 5 Ma. SONY VAIO PCG-51212M battery

The New World short-faced bears (Tremarctinae) differentiated from Ursinae following a dispersal event into North America during the mid Miocene (~13 Ma).[10] They invaded South America (~1 Ma) following formation of the Isthmus of Panama.[11] Their earliest fossil representative is Plionarctos in North America (~ 10–2 Ma). This genus is probably the direct ancestor to the North American short-faced bears (genus Arctodus) SONY VAIO PCG-51211M battery, the South American short-faced bears (Arctotherium), and the spectacled bears, Tremarctos, represented by both an extinct North American species (T. floridanus), and the lone surviving representative of the Tremarctinae, the South American spectacled bear (T. ornatus).

Fossil of Cave bear (Ursus spelaeus)

The subfamily Ursinae experienced a dramatic proliferation of taxa ~5.3–4.5 Ma ago coincident with major environmental changes, with the first members of the genus Ursus also appearing around this time. SONY VAIO PCG-51112M battery The sloth bear is a modern survivor of one of the earliest lineages to diverge during this radiation event (~5.3 Ma); it took on its peculiar morphology related to its diet on termites and ants no later than by the early Pleistocene. By 3–4 Ma ago, the species Ursus minimus appears in the fossil record of Europe, which apart from size is nearly identical to today's Asiatic black bearSONY VAIO PCG-51111M battery. It is likely ancestral to all bears within Ursinae, perhaps aside from the sloth bear. Two lineages evolved from U. minimus, the black bears (including the sun bear, the Asiatic black bear, and the American black bear), and the brown bears. Modern brown bears evolved from U. minimus via Ursus etruscus, which itself is ancestral to both the extinct Pleistocene cave bear and today's brown and polar bearsSONY VAIO PCG-51111V battery. Species of Ursinae have migrated repeatedly into N. America from Eurasia as early as 4 Ma ago during the early Pliocene.[12]

The fossil record of bears is exceptionally good. Direct ancestor-descendent relationships between individual species are often fairly well established, with sufficient intermediate forms known to make the precise cut-off between an ancestral and its daughter species subjective. SONY VAIO PCG-81211V battery

Other extinct bear genera include Agriarctos, Indarctos, and Agriotherium (sometimes placed within hemicyonids).

Taxonomic revisions of living bear species

The giant panda's taxonomy (subfamily Ailuropodinae) has long been debated. Its original classification by Armand David in 1869 was within the bear genus Ursus, but in 1870 it was reclassified by Alphonse Milne-Edwards to the raccoon family. SONY VAIO PCG-81111V battery In recent studies, the majority of DNA analyses suggest that the giant panda has a much closer relationship to other bears and should be considered a member of the family Ursidae.[15] Estimates of divergence dates place the giant panda as the most ancient offshoot among living taxa within Ursidae, having split from other bears 17.9 to 22.1 Ma ago.[10] The red panda was included within Ursidae in the pastSONY VAIO PCG-81212M battery. However, more recent research does not support such a conclusion and instead places it in its own family Ailuridae, in superfamily Musteloidea along with Mustelidae, Procyonidae, and Mephitidae. Multiple similarities between the two pandas, including the presence of false thumbs, are thus thought to represent an example of convergent evolution for feeding primarily on bambooSony VAIO PCG-81112M battery.

There is also evidence that, unlike their neighbors elsewhere, the brown bears of Alaska's ABC islands are more closely related to polar bears than they are to other brown bears in the world. Researchers Gerald Shields and Sandra Talbot of the University of Alaska Fairbanks Institute of Arctic Biology studied the DNA of several samples of the species and found that their DNA is different from that of other brown bearsSONY VAIO PCG-71111M battery. The researchers discovered that their DNA was unique compared to brown bears anywhere else in the world. The discovery has shown that while all other brown bears share a brown bear as their closest relative, those of Alaska's ABC Islands differ and share their closest relation with the polar bear.[19] There is also the very rare Tibetan blue bear, which is a type of brown bear. This animal has never been photographedSONY VAIO PCG-7192V battery.

Koalas are often referred to as bears due to their appearance; they are not bears, however, but marsupials.

Biology

Morphology

Despite being quadrupeds, bears can stand and sit similarly to humans.

Unlike other carnivora, bears have plantigrade hind feet

Bears are generally bulky and robust animals with relatively short legs. Bears are sexually dimorphic with regard to size, with the males being larger. Larger species tend to show increased levels of sexual dimorphism in comparison to smaller species, and where a species varies in size across its distribution individuals from larger sized areas tend also to vary moreSONY VAIO PCG-7191V battery. Bears are the most massive terrestrial members of the order Carnivora, with some Polar Bears and Brown Bears weighing over 750 kilograms (1,700 lb). As to which species is the largest may depend on whether the assessment is based on which species has the largest individuals (brown bears) or on the largest average size (polar bears). The smallest bears are the Sun Bears of Asia, which weigh an average of 65 kilograms (140 lb) for the males and 45 kilograms (99 lb) for the females. SONY VAIO PCG-7196M battery

Unlike other land carnivorans, bears are plantigrade. They distribute their weight toward the hind feet which makes them look lumbering when they walk. They are still quite fast with the brown bear reaching 30 miles per hour (48 km/h) although they are still slower than felines and canines. Bears can stand on their hind feet and sit up straight with remarkable balanceSONY VAIO PCG-7195M battery. Bears have non-retractable claws which are used for digging, climbing, tearing and catching prey. Their ears are rounded.

Bears have an excellent sense of smell, a better sense of smell than the dogs (Canidae), or possibly any other mammal. This sense of smell is used for signalling between bears (either to warn off rivals or detect mates) and for finding food. Smell is the principal sense used by bears to find most of their diet. SONY VAIO PCG-7194M battery

Dentition

Unlike most other members of the Carnivora, bears have relatively undeveloped carnassial teeth, and their teeth are adapted for a diet that includes a significant amount of vegetable matter. The canine teeth are large, and the molar teeth flat and crushing. There is considerable variation in dental formula even within a given species. It has been suggested that this indicates bears are still in the process of evolving from a carnivorous to a predominantly herbivorous dietSONY VAIO PCG-7192M battery. Polar bears appear to have secondarily re-evolved fully functional carnassials, as their diet has switched back towards carnivory.[21] The dental formula for living bears is:

Distribution and habitat

The bears are mostly found in the northern hemisphere, with a single species, the spectacled bear, occurring in South America. The Atlas Bear, a subspecies of the Brown Bear, was the only bear native to Africa. It was distributed in North Africa from Morocco to Libya, but has been extinct since around the 1870sSONY PCG-8113M battery. All the other species are found in North America, Asia and Europe. The most widespread species is the Brown Bear, which occurs from Western Europe eastwards through Asia to the western areas of North America. The American Black Bear is restricted to North America, and the Polar bear is restricted to the Arctic Sea. All the remaining species are Asian.SONY PCG-8112M battery

With the exception of the Polar Bear the bears are mostly forest species. Some species, particularly the Brown Bear, may inhabit or seasonally use other areas such as alpine scrub or tundra.

Behaviour

While many people think that bears are nocturnal, they are in fact generally diurnal, active for the most part during the day. The belief that they are nocturnal apparently comes from the habits of bears that live near humans which engage in some nocturnal activitiesSONY PCG-7134M battery, such as raiding trash cans or crops while avoiding humans. The sloth bear of Asia is the most nocturnal of the bears, but this varies by individual and females with cubs are often diurnal in order to avoid competition with males and nocturnal predators.[20] Bears are overwhelmingly solitary and are considered to be the most asocial of all the Carnivora. Liaisons between breeding bears are briefSONY PCG-7131M battery, and the only times bears are encountered in small groups are mothers with young or occasional seasonal bounties of rich food (such as salmon runs).[20]

Vocalizations

Bears produce a variety of vocalizations such as:

Moaning: produced mostly as mild warnings to potential threats or in fear.

Barking: produced during times of alarm, excitement or to give away the animal's position.

Huffing: made during courtship or between mother and cubs to warn of danger.

Growling: produced as strong warnings to potential threats or in anger.

Roaring: used much for the same reasons as growls and also to proclaim territory and for intimidationSONY PCG-7122M battery.

Diet and interspecific interactions

Asian black bear feeding on berries

Brown bears make use of infrequent but predictable salmon runs in order to feed

Their carnivorous reputation non-withstanding, most bears have adopted a diet of more plant than animal matter and are completely opportunistic omnivores. Some bears will climb trees in order to obtain mast (edible vegatative or reproductive parts such as acorns) SONY PCG-7121M battery ; smaller species which are more able to climb include a greater amount of this in their diet.[22] Such masts can be very important to the diet of these species, and mast failures may result in long range movements by bears looking for alternative sources of food.[23] One exception is the polar bear, which has adopted a diet mainly of marine mammals to survive in the Arctic. The other exception is the giant panda which has adopted a diet mainly of bambooSONY PCG-7113M battery. Stable isotope analysis of the extinct giant short-faced bear (Arctodus simus) shows that it was also an exclusive meat eater, probably a scavenger.[24] The sloth bear, though not as specialized as the previous two species, has lost several front teeth usually seen in bears and developed a long, suctioning tongue in order to feed on the ants, termites and other burrowing insects that they favourSONY PCG-7112M battery. At certain times of the year these insects can make up 90% of their diet.[25] All bears will feed on any food source that becomes available, and the nature of that varies seasonally. A study of Asiatic black bears in Taiwan found that they would consume large numbers of acorns when they were most common, and switch to ungulates in other times of the year. SONY PCG-8Z3M battery

When taking warm-blooded animals, bears will typically take small or young animals, as they are easier to catch. Although (besides polar bears) both species of black bear and the brown bear can sometimes take large prey, such as ungulates.[26][27] Often, bears will feed on other large animals when they encounter a carcass, whether or not the carcass is claimed by or is the kill of another predatorSONY PCG-8Z2M battery. This competition is the main source of interspecies conflict. Bears are typically the apex predators in their range due to their size and power, and can defend a carcass against nearly all comers. Mother bears also can usually defend their cubs against other predators. The tiger is the only known predator known to regularly prey on adult bears, including sloth bears, Asiatic black bears, giant pandas, sun bears and small brown bearsSONY PCG-8Z1M battery .

Breeding

Bear cubs, like this American Black Bear, are sometimes killed by males

The age at which bears reach sexual maturity is highly variable, both between and within species. Sexual maturity is dependent on body condition, which is in turn dependent upon the food supply available to the growing individual. In the females of smaller species may have young in as little as two yearsSONY PCG-8Y3M battery, whereas the larger species may not rear young until they are four or even nine years old. First breeding may be even later in males, where competition for mates may leave younger males without access to females.[20]

American Black Bears mating

The bear's courtship period is very brief. Bears in northern climates reproduce seasonally, usually after a period of inactivity similar to hibernation, although tropical species breed all year round. Cubs are born toothless, blind, and baldSONY PCG-8Y2M battery. The cubs of brown bears, usually born in litters of 1–3, will typically stay with the mother for two full seasons. They feed on their mother's milk through the duration of their relationship with their mother, although as the cubs continue to grow, nursing becomes less frequent and cubs learn to begin hunting with the mother. They will remain with the mother for approximately three yearsSONY PCG-7Z1M battery, until she enters the next cycle of estrus and drives the cubs off. Bears will reach sexual maturity in five to seven years. Male bears, especially Polar and Brown Bears, will kill and sometimes devour cubs born to another father in order to induce a female to breed again. Female bears are often successful in driving off males in protection of their cubs, despite being rather smallerSONY PCG-6W2M battery.

Winter dormancy

Polar bearmother is nursing her cub

Polar bear at Wapusk National Park, Canada

Many bears of northern regions are assumed[by whom?] to hibernate in the winter. While many bear species[which?] do go into a physiological state often colloquially called "hibernation" or "winter sleep", it is not true hibernation. In true hibernators, body temperatures drop to near ambient and heart rate slows drasticallySONY PCG-5J5M battery, but the animals periodically rouse themselves to urinate or defecate and to eat from stored food. The body temperature of bears, on the other hand, drops only a few degrees from normal and heart rate slows only slightly. They normally do not wake during this "hibernation", and therefore do not eat, drink, urinate or defecate the entire periodSONY PCG-5K2M battery . Higher body heat and being easily roused may be adaptations, because females give birth to their cubs during this winter sleep.

Relationship with humans

See also: Bear danger

Some species, such as the polar bear, American black bear, sloth bear and the brown bear, are dangerous to humans, especially in areas where they have become used to people. All bears are physically powerful and are likely capable of fatally attacking a person, but theySONY PCG-5K1M battery, for the most part, are shy, are easily frightened and will avoid humans. Injuries caused by bears are rare, but are often widely reported.[28] The danger that bears pose is often vastly exaggerated, in part by the human imagination. However, when a mother feels her cubs are threatened, she will behave ferociously. It is recommended to give all bears a wide berth because they are behaviorally unpredictableSONY PCG-5J4M battery.

Bears may also come into conflict with humans where they raid crops or attack livestock.[29][30] These problems may be the work of only a few bears but create a climate of conflict as farmers and ranchers may perceive all losses as due to bears and advocate the preventive removal of all bears.[30] Mitigation methods may be used to reduce bear damage to crops, and reduce local antipathy towards bears. SONY PCG-5J1M battery

Bear danger area closure sign of a type used in Denali National Park in Alaska

Wojtek with Polish soldier. During the Battle of Monte Cassino, Wojtek helped move ammunition.

Laws have been passed in many areas of the world to protect bears from hunters' habitat destruction. Public perception of bears is often very positive, as people identify with bears due to their omnivorous diet, ability to stand on two legs, and symbolic importance, SONY PCG-5G2M battery and there is widespread support for bear protection, at least in more affluent societies.[32] In more rural and poorer regions attitudes may be more shaped by the dangers posed by bears and the economic costs that they incur to farmers and ranchers.[30] Some populated areas with bear populations have also outlawed the feeding of bears, including allowing them access to garbage or other food wasteSony VAIO PCG-8131M battery. Bears in captivity have been trained to dance, box, or ride bicycles; however, this use of the animals became controversial in the late 20th century. Bears were kept for baiting in Europe at least since the 16th century.

Bear hunt

Some cultures use bears for food and folk medicine. Their meat is dark and stringy, like a tough cut of beef. In Cantonese cuisine, bear paws are considered a delicacySony VAIO PCG-8152M battery. The peoples of China, Japan, and Korea use bears' body parts and secretions (notably their gallbladders and bile) as part of traditional Chinese medicine. It is believed more than 12,000 bile bears are kept on farms, farmed for their bile, in China, Vietnam and South Korea.[33] Bear meat must be cooked thoroughly as it can often be infected with Trichinella spiralis, which can cause trichinosis. Sony VAIO PCG-31311M battery

Culture

Names

The female first name "Ursula", originally derived from a Christian saint's name and common in English- and German-speaking countries, means "little she-bear" (diminutive of Latin ursa). In Switzerland the male first name "Urs" is especially popular, while the name of the canton and city of Bern is derived from Bär, German for bearSony VAIO PCG-31111M battery.

In Scandinavia, the male personal names Björn (Sweden, Iceland) and Bjørn (Norway, Denmark) meaning "bear" are relatively common. In Finland, male personal name Otso is an old poetic name for bear, similar to Kontio.

In Russian and other Slavic languages, the word for bear, "Medved" (медведь), and variants or derivatives such as Medvedev, are common surnamesSony VAIO PCG-8112M battery.

The Irish family name "McMahon" means "Son of Bear" in Irish.

In East European Jewish communities, the name "Ber" (בער)—Yiddish cognate of "Bear"—has been attested as a common male first name, at least since the 18th century, and was among others the name of several prominent Rabbis. The Yiddish "Ber" is still in use among Orthodox Jewish communities in Israel, the US and other countriesSony VAIO PCG-7186M battery. With the transition from Yiddish to Hebrew under the influence of zionism, the Hebrew word for "bear", "Dov" (דב), was taken up in contemporary Israel and is at present among the commonly used male first names in that country.

"Ten Bears" (Paruasemana) was the name of a well-known 19th century chieftain among the Comanche. Also among other Native American tribes, bear-related names are attestedSony VAIO PCG-7171M battery.

Myth and legend

For bears in mythology, see Jean de l'Ours, Arcturus, Ursa Major, and Berserker.

There is evidence of prehistoric bear worship. Anthropologists such as Joseph Campbell have regarded this as a common feature in most of the fishing and hunting-tribes. The prehistoric Finns, along with most Siberian peoples, considered the bear as the spirit of one's forefathersSony VAIO PCG-9Z1M battery. This is why the bear (karhu) was a greatly respected animal, with several euphemistic names (such as otso, mesikämmen and kontio). The bear is the national animal of Finland.

This kind of attitude is reflected in the traditional Russian fairy tale "Morozko", whose arrogant protagonist Ivan tries to kill a mother bear and her cubs—and is punished and humbled by having his own head turned magically into a bear's head and being subsequently shunned by human societySony VAIO PCG-5S1M battery.

"The Brown Bear of Norway" is a Scottish fairy tale telling the adventures of a girl who married a prince magically turned into a bear, and who managed to get him back into a human form by the force of her love and after many trials and difficulties. In the 1970s this story was adapted into the East German fantasy film The Singing Ringing Tree and broadcast on British televisionSony VAIO PCG-5P1M battery.

There has been evidence about early bear worship in China and among the Ainu culture as well (see Iomante). Korean people in their mythology identify the bear as their ancestor and symbolic animal. According to the Korean legend, a god imposed a difficult test on a she-bear, and when she passed it the god turned her into a woman and married herSony VAIO PCG-5N2M battery.

Legends of saints taming bears are common in the Alpine zone. In the arms of the bishopric of Freising (see illustration) the bear is the dangerous totem animal tamed by St. Corbinian and made to carry his civilised baggage over the mountains. A bear also features prominently in the legend of St. Romedius, who is also said to have tamed one of these animals and had the same bear carry him from his hermitage in the mountains to the city of TrentoSony VAIO PCG-3C2M battery.

Similar stories are told of Saint Gall and Saint Columbanus.

This recurrent motif was used by the Church as a symbol of the victory of Christianity over Paganism.[37] In the Norse settlements of northern England during the tenth century a type of "hogback" grave cover of a long narrow block of stone with a shaped apex like the roof beam of a long house, is carved with a muzzled, thus ChristianisedSony VAIO PCG-8161M battery, bear clasping each gable end. Though the best collection of these is in the church at Brompton, North Yorkshire,[38] their distribution ranges across northern England and southern Scotland, with a scattered few in the north Midlands and single survivals in Wales, Cornwall and Ireland; a late group is found in the Orkney IslandsSony VAIO PCG-8141M battery.

Bears are a popular feature of many children's stories including Goldilocks and The Story of the Three Bears, the Berenstein Bears, and Winnie the Pooh.

Symbolic use

For more details on this topic, see Bears in heraldry.

The British Lion, the Persian Cat and the Russian Bear (see The Great Game)

The Russian bear is a common national personification for Russia (as well as the Soviet Union). The brown bear is also Germany's and Finland's national animal.

The flag of CaliforniaSony VAIO PCG-3J1M battery

In the United States, the black bear is the state animal of Louisiana, New Mexico, and West Virginia; the grizzly bear is the state animal of both Montana and California. Bears also appear in the state seals of California and Missouri.

In the UK, the bear and staff has long featured on the heraldic arms of Warwickshire county.[39]

Bears appear in the canting arms of Bern and BerlinSony VAIO PCG-3H1M battery.

Also, "bear", "bruin", or specific types of bears are popular nicknames or mascots, for example, for sports teams (Chicago Bears, California Golden Bears, UCLA Bruins, Boston Bruins); and a bear cub called Misha was mascot of the 1980 Summer Olympics in Moscow, USSR.

Smokey Bear

Smokey Bear has become a part of American culture since his introduction in 1944. Known to almost all AmericansSony VAIO PCG-3F1M battery, he and his message, "Only you can prevent forest fires" (updated in 2001 to "Only you can prevent wildfires"), have been a symbol of preserving woodlands.[40] Smokey wears a hat similar to one worn by U.S. Forest Service rangers; state police officers in some states wear a similar style, giving rise to the CB slang "bear" or "Smokey" for the highway patrol.

The name Beowulf has been hypothesized to mean "bee-wolf", a kenning for "bear".
Sony VAIO PCG-3C1M battery


Figures of speech

The physical attributes and behaviours of bears are commonly used in figures of speech in English.

In the stock market, a bear market is a period of declining prices. Pessimistic forecasting or negative activity is said to be bearish (due to the stereotypical posture of bears looking downwards), and one who expresses bearish sentiment is a bear. Its opposite is a bull market, and bullish sentiment from bullsSony VAIO PCG-9Z2L battery.

In gay slang, the term "bear" refers to male individuals who possess physical attributes much like a bear, such as a heavy build, abundant body hair, and commonly facial hair.

A bear hug is typically a tight hug that involves wrapping one's arms around another person, often leaving that person's arms immobile. It was used in the Ronald Reagan political ad "Bear in the woods"Sony VAIO PCG-9Z1L battery.

Bear tracking – in the old Western states of the U.S. and, to this day, in the former Dakota Territory, the expression "you ain't just a bear trackin'" is used to mean "you ain't lying" or "that's for sure". This expression evolved as an outgrowth of the experience pioneer hunters and mountainmen had when tracking bear. Bears often lay down false tracks and are notorious for doubling back on anything tracking themSony VAIO PCG-9131L battery. If you are not following bear tracks, you are not following false trails or leads in your thoughts, words or deeds.

In Korean culture a person is referred to as being "like a bear" when they are stubborn or not sensitive to what is happening around their surroundings. Used as a phrase to call a person "stubborn bear"Sony VAIO PCG-8161L battery.

The Bible compares King David's "bitter warriors", who fight with such fury that they could overcome many times their number of opponents, with "a bear robbed of her whelps in the field" (2 Samuel 17:8 s:Bible (King James)/2 Samuel#Chapter 17). The phrase "a bereaved bear" (דב שכול), derived from this Biblical source, is still used in the literary Hebrew of contemporary IsraelSony VAIO PCG-8152L battery.

The hippopotamus (Hippopotamus amphibius), or hippo, from the ancient Greek for "river horse" (ἱπποπόταμος), is a large, mostly herbivorous mammal in sub-Saharan Africa, and one of only two extant species in the family Hippopotamidae (the other is the Pygmy Hippopotamus.) After the elephant and rhinoceros, the hippopotamus is the third largest land mammal and the heaviest extant artiodactylSony VAIO PCG-8141L battery.

The hippopotamus is semi-aquatic, inhabiting rivers, lakes and mangrove swamps, where territorial bulls preside over a stretch of river and groups of 5 to 30 females and young. During the day they remain cool by staying in the water or mud; reproduction and childbirth both occur in water. They emerge at dusk to graze on grass. While hippopotamuses rest near each other in the water, grazing is a solitary activity and hippos are not territorial on landSony VAIO PCG-8131L battery.

Despite their physical resemblance to pigs and other terrestrial even-toed ungulates, their closest living relatives are cetaceans (whales, porpoises, etc.) from which they diverged about 55 million years ago.[3] The common ancestor of whales and hippos split from other even-toed ungulates around 60 million years ago.[4] The earliest known hippopotamus fossilsSony VAIO PCG-81312L battery, belonging to the genus Kenyapotamus in Africa, date to around 16 million years ago.

The hippopotamus is recognizable by its barrel-shaped torso, enormous mouth and teeth, nearly hairless body, stubby legs and tremendous size. It is the third largest land mammal by weight (between 1½ and 3 tonnes), behind the white rhinoceros (1½ to 3½ tonnes) and the three species of elephant (3 to 9 tonnes) Sony VAIO PCG-81214L battery. The hippopotamus is one of the largest quadrupeds (four legged mammals) [5] and despite its stocky shape and short legs, it can easily outrun a human. Hippos have been clocked at 30 km/h (19 mph) over short distances. The hippopotamus is one of the most aggressive creatures in the world and is often regarded as one of the most dangerous animals in AfricaSony VAIO PCG-81214L battery. There are an estimated 125,000 to 150,000 hippos throughout Sub-Saharan Africa; Zambia (40,000) and Tanzania (20,000–30,000) possess the largest populations.[1] They are still threatened by habitat loss and poaching for their meat and ivory canine teeth. There is also a colony of non-zoo hippos in Colombia introduced by Pablo EscobarSony VAIO PCG-81114L battery.

Etymology

Look up hippopotamus in Wiktionary, the free dictionary.

The word "hippopotamus" is derived from the ancient Greek ἱπποπόταμος, hippopotamos, from ἵππος, hippos, "horse", and ποταμός, potamos, "river", meaning "horse of the river".[6] In English, the plural is hippopotamuses, but hippopotami is also used; hippos can be used as a short plural. Hippopotamuses are gregarious, living in groups of up to 30 animalsSony VAIO PCG-81113L battery; such a name is called a pod, herd, dale, or bloat.

In Africa, the hippo is known by several names including Kiboko (Swahili), Ensherre (Nkore), Tomondo (Turu), Nvubu (Luganda), Ifuru (Luhya), Emiria (Ateso), Magawit (Sebei), Kibei (Kalenjin), Olmakau (Maasai) and Jir (Somali) in the east;[8]:256 and Seekoei (Afrikaans), Mvuvu (Venda), Kubu (Lozi) and Mvubu (Xhosa, Siswati and Zulu) in the south.Sony VAIO PCG-7142L battery

Taxonomy and origins

Classification

The hippopotamus is the type genus of the family Hippopotamidae. The Pygmy Hippopotamus belongs to a different genus in Hippopotamidae, either Choeropsis or Hexaprotodon. Hippopotamidae are sometimes known as Hippopotamids. Sometimes the sub-family Hippopotaminae is used. Further, some taxonomists group hippopotamuses and anthracotheres in the super-family Anthracotheroidea or HippopotamoideaSony VAIO PCG-7141L battery.

A pygmy hippopotamus (Hexaprotodon liberiensis)

Hippopotamidae are classified along with other even-toed ungulates in the order Artiodactyla. Other artiodactyls include camels, cows, deer and pigs, although hippopotamuses are not closely related to these groups.

Five subspecies of hippos have been described based on morphological differences in their skulls and geographical differences: Sony VAIO PCG-71111L battery

H. a. amphibius – (the nominate subspecies) which stretched from Egypt, where they are now extinct, south up the Nile River to Tanzania and Mozambique.

H. a. kiboko – in the Horn of Africa, in Kenya and Somalia. Broader nasals and more hollowed interorbital region.

H. a. capensis – from Zambia to South Africa. Most flattened skull of the subspecies.

H. a. tschadensis – throughout Western Africa to, as the name suggests, Chad. Slightly shorter and wider face, with prominent orbitsSony VAIO PCG-61411L battery.

H. a. constrictus – in Angola, the southern Democratic Republic of Congo and Namibia. Named for its deeper preorbital constriction.

The suggested subspecies were never widely used or validated by field biologists; the described morphological differences were small enough that they could have resulted from simple variation in non-representative samples.Sony VAIO PCG-61112L batteryGenetic analyses have tested the existence of three of these putative subspecies. A study examining mitochondrial DNA from skin biopsies taken from 13 sampling locations, considered genetic diversity and structure among hippo populations across the continent. The authors found low but significant genetic differentiation among H. a. amphibius, H. a. capensis, and H. a. kiboko. Neither H.a.tschadensis nor H.a.constrictus have been tested.Sony VAIO PCG-61111L battery

[edit]Evolution

Until 1909, naturalists grouped hippos with pigs, based on molar patterns. Several lines of evidence, first from blood proteins, then from molecular systematics[14] and DNA and the fossil record, show that their closest living relatives are cetaceans—whales, dolphins and porpoises. The common ancestor of hippos and whales branched off from Ruminantia and the rest of the even-toed ungulatesSony VAIO PCG-5T4L battery; the cetacean and hippo lineages split soon afterwards.

The most recent theory of the origins of Hippopotamidae suggests that hippos and whales shared a common semi-aquatic ancestor that branched off from other artiodactyls around 60 million years ago.[15][17] This hypothesized ancestral group likely split into two branches around 54 million years ago.[14] One branch would evolve into cetaceansSony VAIO PCG-5T3L battery, possibly beginning about 52 million years ago with the proto-whale Pakicetus and other early whale ancestors collectively known as Archaeoceti, which eventually underwent aquatic adaptation into the completely aquatic cetaceans.[19]

Hippopotamus madagascariensis skeleton with a modern hippopotamus skullSony VAIO PCG-5T2L battery.

The other branch became the anthracotheres, a large family of four-legged beasts, the earliest of whom in the late Eocene would have resembled skinny hippopotamuses with comparatively small and narrow heads. All branches of the anthracotheres, except that which evolved into Hippopotamidae, became extinct during the Pliocene without leaving any descendants. Sony VAIO PCG-5S3L battery

A rough evolutionary lineage can be traced from Eocene and Oligocene species: Anthracotherium and Elomeryx to the Miocene Merycopotamus and Libycosaurus and the very latest anthracotheres in the Pliocene.[20] Merycopotamus, Libycosaurus and all hippopotamids can be considered to form a clade, with Libycosaurus being more closely related to hipposSony VAIO PCG-5S2L battery. Their common ancestor would have lived in the Miocene, about 20 million years ago.

Hippopotamids are therefore deeply nested within the family Anthracotheriidae. The Hippopotamidae are believed to have evolved in Africa; the oldest known hippopotamid is the genus Kenyapotamus which lived in Africa from 16 to 8 million years ago. While hippopotamid species spread across Asia and EuropeSony VAIO PCG-5S1L battery, no hippopotamuses have ever been discovered in the Americas, although various anthracothere genera emigrated into North America during the early Oligocene. From 7.5 to 1.8 million years ago an ancestor to the modern hippopotamus, Archaeopotamus, lived in Africa and the Middle East.[21]

While the fossil record of hippos is still poorly understood, the two modern genera, Hippopotamus and Choeropsis (sometimes Hexaprotodon) Sony VAIO PCG-5R2L battery, may have diverged as far back as 8 million years ago. Taxonomists disagree whether or not the modern Pygmy Hippopotamus is a member of Hexaprotodon —an apparently paraphyletic genus also embracing many extinct Asian hippopotamuses that is more closely related to Hippopotamus, or Choeropsis —an older and basal genus. Sony VAIO PCG-5R1L battery

Extinct species

Three species of Malagasy Hippopotamus became extinct during the Holocene on Madagascar, one of them within the past 1,000 years. The Malagasy Hippos were smaller than the modern hippopotamus, likely through the process of insular dwarfism.[22] There is fossil evidence that many Malagasy Hippos were hunted by humans, a likely factor in their eventual extinction. Sony VAIO PCG-5P4L battery Isolated members of Malagasy Hippopotamus may have survived in remote pockets; in 1976, villagers described a living animal called the Kilopilopitsofy, which may have been a Malagasy Hippopotamus.[23]

Two species of Hippopotamus, the European Hippopotamus (H. antiquus) and H. gorgops ranged throughout continental Europe and the British Isles. Both species became extinct before the last glaciationSony VAIO PCG-5P2L battery. Ancestors of European Hippos found their way to many islands of the Mediterranean during the Pleistocene.[24] Both species were larger than the modern hippopotamus, averaging about 1 meter (3.3 feet) longer.

The Pleistocene also saw a number of dwarf species evolve on several Mediterranean islands including Crete (H. creutzburgi), Cyprus (H. minor), Malta (H. melitensis) and Sicily (H. pentlandi). Of these, the Cyprus Dwarf HippopotamusSony VAIO PCG-5N4L battery, survived until the end of the Pleistocene or early Holocene. Evidence from an archaeological site Aetokremnos, continues to cause debate on whether or not the species was encountered, and was driven to extinction, by man.

Description

A hippo's skull, showing the large canine teeth used for fighting

Hippopotamuses are among the largest living mammals; only elephants and some rhinoceroses and whales are heavier. They can live in the water or on landSony VAIO PCG-5N2L battery. Their specific gravity allows them to sink and walk or run along the bottom of a river. Hippos are considered megafauna, but unlike all other African megafauna, hippos have adapted for a semi-aquatic life in freshwater lakes and rivers.[11]:3

Because of their enormous size, hippopotamuses are difficult to weigh in the wild. Most estimates of the weight come from culling operations that were carried out in the 1960sSony VAIO PCG-51513L battery. The average weights for adult males ranged between 1,500–1,800 kg (3,300–4,000 lb). Females are smaller than their male counterparts, with average weights measuring between 1,300–1,500 kg (2,900–3,300 lb). Older males can get much larger, reaching at least 3,200 kg (7,100 lb) and occasionally weighing 4,500 kg (9,900 lb). Male hippos appear to continue growing throughout their lives; females reach a maximum weight at around age 25. Sony VAIO PCG-51511L battery

Hippos measure 3.3 to 5.2 meters (11 to 17 ft) long, including a tail of about 56 centimeters (22 in) in length and average about 1.5 meters (5 ft) tall at the shoulder.[29][30] The range of hippopotamus sizes overlaps with the range of the White Rhinoceros; use of different metrics makes it unclear which is the largest land animal after elephantsSony VAIO PCG-51412L battery. Even though they are bulky animals, hippopotamuses can run faster than a human on land. Estimates of their running speed vary from 30 km/h (18 mph) to 40 km/h (25 mph), or even 50 km/h (30 mph). The hippo can maintain these higher speeds for only a few hundred meters. Despite being semi-aquatic and having webbed feet, an adult hippo is not a particularly good swimmer nor can it floatSony VAIO PCG-51411L battery. It is rarely found in deep water; when it is, the animal moves by porpoise-like leaps from the bottom.[11]:3

An open mouth signals that the hippo feels threatened.

The eyes, ears, and nostrils of hippos are placed high on the roof of the skull. This allows them to be in the water with most of their body submerged in the waters and mud of tropical rivers to stay cool and prevent sunburn. Their skeletal structure is graviportalSony VAIO PCG-51312L battery, adapted to carrying the animals' enormous weight. Hippopotamuses have small legs (relative to other megafauna) because the water in which they live reduces the weight burden. Unlike most other semi-aquatic animals, the hippopotamus has very little hair.[8]:260 The skin is 6 in (15 cm) thick,[31] providing it great protection against conspecifics and predatorsSony VAIO PCG-51311L battery. The animals's upper parts are purplish-gray to blue-black while the under parts and areas around the eyes and ears can be brownish-pink.[8]:260

The hippo's jaw is powered by a large masseter and a well developed digastric; the latter loops up behind the former to the hyoid.[8]:259 The animal has a distinctive gape, which can reach 150°.[31] On the National Geographic Channel television programSony VAIO PCG-51211L battery, "Dangerous Encounters with Brady Barr", Dr. Brady Barr measured the bite force of an adult female hippo at 8100 N (1821 lbf); Barr also attempted to measure the bite pressure of an adult male hippo, but had to abandon the attempt due to the male's aggressiveness.[32] Hippopotamus teeth sharpen themselves as they grind together. The lower canines and lower incisors are enlarged, especially in males, and grow continuously. The incisors can reach 40 cm (16 in) while the canines reach up to 50 cm (20 in). Sony VAIO PCG-41112L battery

Their skin secretes a natural sunscreen substance which is red-colored. The secretion is sometimes referred to as "blood sweat," but is neither blood nor sweat. This secretion is initially colorless and turns red-orange within minutes, eventually becoming brown. Two distinct pigments have been identified in the secretions, one red (hipposudoric acid) and one orange (norhipposudoric acid) Sony VAIO PCG-3A4L battery. The two pigments are highly acidic compounds. Both pigments inhibit the growth of disease-causing bacteria; as well, the light absorption of both pigments peaks in the ultraviolet range, creating a sunscreen effect. All hippos, even those with different diets, secrete the pigments, so it does not appear that food is the source of the pigments. Instead, the animals may synthesize the pigments from precursors such as the amino acid tyrosine. Sony VAIO PCG-3A3L battery

A hippo's lifespan is typically 40–50 years.[8]:277 Donna the Hippo, 60, is the oldest living hippo in captivity. She lives at the Mesker Park Zoo in Evansville, Indiana, USA.[34][35] The oldest hippo ever recorded was called Tanga; she lived in Munich, Germany, and died in 1995 at the age of 61. Sony VAIO PCG-3A2L battery

Distribution

Hippopotamus amphibius was widespread in North Africa and Europe during the Eemian[37] and late Pleistocene until about 30,000 years ago. The species was common in Egypt's Nile region until historic times but has since been extirpated. Pliny the Elder writes that, in his time, the best location in Egypt for capturing this animal was in the Saite nome; Sony VAIO PCG-3A1L battery the animal could still be found along the Damietta branch after the Arab Conquest in 639. Hippos are still found in the rivers and lakes of Uganda, Sudan, Somalia, Kenya, northern Democratic Republic of the Congo and Ethiopia, west through Ghana to Gambia, and also in Southern Africa (Botswana, Republic of South Africa, Zimbabwe, Zambia). A separate population exists in Tanzania and MozambiqueSony VAIO PCG-394L battery.

[edit]Conservation status

The Hippopotamus Hunt (1617), by Peter Paul Rubens

Genetic evidence suggests that common hippos in Africa experienced a marked population expansion during or after the Pleistocene Epoch, attributed to an increase in water bodies at the end of the era. These findings have important conservation implications as hippo populations across the continent are currently threatened by loss of access to fresh water. Sony VAIO PCG-393L batteryHippos are also subject to unregulated hunting and poaching. In May 2006 the hippopotamus was identified as a vulnerable species on the IUCN Red List drawn up by the World Conservation Union (IUCN), with an estimated population of between 125,000 and 150,000 hippos, a decline of between 7% and 20% since the IUCN's 1996 study. Sony VAIO PCG-391L battery

The hippo population declined most dramatically in the Democratic Republic of the Congo.[39] The population in Virunga National Park had dropped to 800 or 900 from around 29,000 in the mid 1970s.[40] The decline is attributed to the disruptions caused by the Second Congo War.[40] The poachers are believed to be former Hutu rebelsSony VAIO PCG-384L battery, poorly paid Congolese soldiers, and local militia groups.[40] Reasons for poaching include the belief that hippos are harmful to society, and also for money.[41] The sale of hippo meat is illegal, but black-market sales are difficult for Virunga National Park officers to track.

[edit]Invasive potential

In the late 1980s, Pablo Escobar kept four hippos in a private menagerie at his residence in Hacienda Napoles, 100 km east of Medellín, Colombia, after buying them in New OrleansSony VAIO PCG-383L battery. They were deemed too difficult to seize and move after Escobar's fall, and hence left on the untended estate. By 2007, the animals had multiplied to 16 and had taken to roaming the area for food in the nearby Magdalena River.[42] In 2009, two adults and one calf escaped the herd, and after attacking humans and killing cattle, one of the adults (called "Pepe") was killed by hunters under authorization of the local authorities. Sony VAIO PCG-382L batteryIt is unknown what kind of effects the presence of hippos might have on the ecosystem in Colombia. According to experts interviewed by W Radio Colombia, the animals could survive in the Colombian jungles. It is believed that the lack of control from the Colombian government, which is not used to dealing with this species, could result in human fatalitiesSony VAIO PCG-381L battery.

Behavior

A bull hippo out of water during daylight

Hippos spend most of their days wallowing in the water or the mud, with the other members of their pod. The water serves to keep their body temperature down, and to keep their skin from drying out. With the exception of eating, most of hippopotamuses' lives —from childbirth, fighting with other hippos, to reproduction— occur in the waterSony VAIO PCG-7185L battery.

Hippos leave the water at dusk and travel inland, sometimes up to 8 kilometers (5 mi), to graze on short grass, their main source of food. They spend four to five hours grazing and can consume 68 kilograms (150 lb) of grass each night.[45] Like almost any herbivore, they will consume many other plants if presented with themSony VAIO PCG-7184L battery, but their diet in nature consists almost entirely of grass, with only minimal consumption of aquatic plants.[46] Hippos have (rarely) been filmed eating carrion, usually close to the water. There are other reports of meat-eating, and even cannibalism and predation.[47] The stomach anatomy of a hippo is not suited to carnivory, and meat-eating is likely caused by aberrant behavior or nutritional stress. Sony VAIO PCG-7183L battery

The diet of hippos consists mostly of terrestrial grasses, even though they spend most of their time in the water. Most of their defecation occurs in the water, creating allochthonous deposits of organic matter along the river beds. These deposits have an unclear ecological function.[46] Because of their size and their habit of taking the same paths to feedSony VAIO PCG-7182L battery, hippos can have a significant impact on the land they walk across, both by keeping the land clear of vegetation and depressing the ground. Over prolonged periods hippos can divert the paths of swamps and channels.[48]

Adult hippos move at speeds up to 8 km/h (5 mph) in water. Adult hippos typically resurface to breathe every three to five minutesSony VAIO PCG-7181L battery. The young have to breathe every two to three minutes.[11]:4 The process of surfacing and breathing is automatic, and even a hippo sleeping underwater will rise and breathe without waking. A hippo closes its nostrils when it submerges.

As with fish and turtles on a coral reef, hippo occasionally visit cleaning stations and signal by wide-open mouth their readiness for being cleaned of parasites by certain species of fishSony VAIO PCG-7174L battery. This situation is an example of mutualism in which the hippo benefits from the cleansing while the fish receive food.[49]

Social life

A hippopotamus pod

Studying the interaction of male and female hippopotamuses has long been complicated by the fact that hippos are not sexually dimorphic and thus females and young males are almost indistinguishable in the field.[50] Although hippos like to lie close to each other, they do not seem to form social bonds except between mothers and daughtersSony VAIO PCG-7173L battery, and are not social animals. The reason they huddle close together is unknown.[11]:49

Hippopotamuses are territorial only in water, where a bull presides over a small stretch of river, on average 250 meters in length, and containing ten females. The largest pods can contain over 100 hippos.[11]:50 Other bachelors are allowed in a bull's stretchSony VAIO PCG-7172L battery, as long as they behave submissively toward the bull. The territories of hippos exist to establish mating rights. Within the pods, the hippos tend to segregate by gender. Bachelors will lounge near other bachelors, females with other females, and the bull on his own. When hippos emerge from the water to graze, they do so individually. Sony VAIO PCG-7171L battery

Hippopotamuses appear to communicate verbally, through grunts and bellows, and it is thought that they may practice echolocation, but the purpose of these vocalizations is currently unknown. Hippos have the unique ability to hold their head partially above the water and send out a cry that travels through both water and air; hippos above and under water will respond. Sony VAIO PCG-7162L battery

Reproduction

Hippos are born underwater.

Female hippos reach sexual maturity at five to six years of age and have a gestation period of 8 months. A study of endocrine systems revealed that female hippopotamuses may begin puberty as early as 3 or 4 years of age.[52] Males reach maturity at around 7.5 years.

A study of hippopotamus reproductive behavior in Uganda showed that peak conceptions occurred during the end of the wet season in the summerSony VAIO PCG-7161L battery, and peak births occurred toward the beginning of the wet season in late winter. This is because of the female's estrous cycle; as with most large mammals, male hippopotamus spermatozoa is active year round. Studies of hippos in Zambia and South Africa also showed evidence of births occurring at the start of the wet season. After becoming pregnant, a female hippopotamus will typically not begin ovulation again for 17 months. Sony VAIO PCG-7154L battery

Mating occurs in the water with the female submerged for most of the encounter,[11]:63 her head emerging periodically to draw breath. Hippos are one of the few mammals that give birth under water, along with Cetaceans and Sirenians (manatees and dugongs). Baby hippos are born underwater at a weight between 25 and 45 kg (60–110 lb) and an average length of around 127 cm (50 in) and must swim to the surface to take their first breathSony VAIO PCG-7153L battery. A mother typically gives birth to only one hippo, although twins also occur. The young often rest on their mothers' backs when in water that is too deep for them, and they swim underwater to suckle. They also will suckle on land when the mother leaves the water. Weaning starts between six and eight months after birth and most calves are fully weaned after a year. Sony VAIO PCG-7152L battery

Like many other large mammals, hippos are described as K-strategists, in this case typically producing just one large, well-developed infant every couple of years (rather than large numbers of small, poorly developed young several times per year as is common among small mammals such as rodents). Sony VAIO PCG-7151L battery

Aggression

Male hippos fighting

Hippopotamuses are by nature very aggressive animals, especially when young calves are present. Frequent targets of their aggression include crocodiles, which often inhabit the same river habitat as hippos. Nile crocodiles, lions and spotted hyenas are known to prey on young hippos.[54] Hippos are very aggressive towards humansSony VAIO PCG-7148L battery, whom they commonly attack whether in boats or on land with no apparent provocation.[55] They are widely considered to be one of the most dangerous large animals in Africa.[56][57]

To mark territory, hippos spin their tails while defecating to distribute their excrement over a greater area.[58] Likely for the same reason, hippos are retromingent – that is, they urinate backwards. Sony VPCW21M2E/WI battery

When in combat, male hippos use their incisors to parry each others attacks, and their lower canines to inflict damage.[8] Hippos rarely kill each other, even in territorial challenges. Usually a territorial bull and a challenging bachelor will stop fighting when it is clear that one hippo is stronger. When hippos become overpopulatedSony VPCW21C7E battery, or when a habitat starts to shrink, bulls will sometimes attempt to kill infants, but this behavior is not common under normal conditions.[53] Some incidents of hippo cannibalism have been documented, but it is believed to be the behavior of distressed or sick hippos, and not healthy behavior.

Hippos and humans

A faience sculpture, from the New Kingdom of Egypt, 18th/19th dynasty, c. 1500–1300 BC, when hippos were still widespread along the NileSony VPCW12S1E/WZ battery

Obaysch lounging at the London Zoo in 1852

The earliest evidence of human interaction with hippos comes from butchery cut marks upon hippo bones at Bouri Formation dated around 160,000 years ago.[60] Later rock paintings and engravings showing hippos being hunted have been found in the mountains of the central Sahara dated 4,000–5,000 years ago near Djanet in the Tassili n'Ajjer MountainsSony VPCW12S1E/W battery. Hippos were also well-known to the ancient Egyptians, where the hippo was recognized as a ferocious denizen of the Nile.

The Hippopotamus was also known to the Greeks and Romans. The Greek historian Herodotus described the hippopotamus in The Histories (written circa 440 BC) and the Roman Historian Pliny the Elder wrote about the hippopotamus in his encyclopedia Naturalis Historia (written circa 77 AD). Sony VPCW12S1E/T batteryHippopotamus was one of the many exotic animals brought to fight gladiators in Rome by the emperor Philip I the Arab to commemorate Rome's 1000 years anniversary in 248 AD. Silver coins with hippo's image were minted that year.

Zulu warriors preferred to be as brave as a hippopotamus, since even lions were not considered as braveSony VPCW12S1E/P battery. "In 1888, Captain Baden-Powell was part of a column searching for the Zulu chief Dinizulu, who was leading the Usutu people in revolt against the British colonists. The column was joined by John Dunn, a white Zulu chief, who led an impi (army) of 2000 Zulu warriors to join the British." [62]

The words of the Zulu anthem sounded like this:

"Een-gonyama Gonyama! "Invooboo! Yah-bo! Yah-bo! Invooboo!" Sony VPCW11S1E/W battery

"John Dunn was at the head of his impi. [Baden Powell] asked him to translate the Zulu anthem his men had been singing. Dunn laughed and replied: "He is a lion. Yes, he is better than a lion—he is a hippopotamus." [63]

[edit]Hippos in zoos

Hippopotamuses have long been popular zoo animals. The first zoo hippo in modern history was Obaysch who arrived at the London Zoo on May 25, 1850, where he attracted up to 10,000 visitors a day and inspired a popular song, the Hippopotamus Polka. Sony VPCW11S1E/T battery Hippos have remained popular zoo animals since Obaysch, and generally breed well in captivity. Their birth rates are lower than in the wild, but this is attributed to zoos' not wanting to breed as many hippos as possible, since hippos are large and relatively expensive animals to maintain.

Like many zoo animals, hippos were traditionally displayed in concrete exhibits. In the case of hippos, they usually had a pool of water and patch of grassSony VPCW11S1E/P battery. In the 1980s, zoo designers increasingly designed exhibits that reflected the animals' native habitats. The best known of these, the Toledo Zoo Hippoquarium, features a 360,000 gallon pool for hippos.[65] In 1987, researchers were able to tape, for the first time, an underwater birth (as in the wild) at the Toledo Zoo. The exhibit was so popular that the hippos became the logo of the Toledo Zoo. Sony VPCYA1S1E/B battery

Cultural depictions

The cover of the Hippopotamus Polka. The unlikely portrayal of dancing hippos was echoed in Disney's Fantasia.

A red hippo represented the Ancient Egyptian god Set; the thigh is the 'phallic leg of set' symbolic of virility. Set's consort Tawaret was also seen as part hippo.[67] The hippopotamus-headed Tawaret was a goddess of protection in pregnancy and childbirthSony VPCYA1V9E/B battery, because ancient Egyptians recognized the protective nature of a female hippopotamus toward her young.[68] The Behemoth from the Book of Job, 40:15–24 is also thought to be based on a hippo.[69] The Ijo people wore masks of aquatic animals like the hippo when practicing their water spirit cults. Sony VPCY21S1E/SI battery

Hippos have been the subjects of various African folktales. According to a Bushmen story; when the Creator assigned each animal their place in nature, the hippos wanted to live in the water, but were refused out of fear that they might eat all the fish. After begging and pleading, the hippos were finally allowed to live in the water on the conditions that they would eat grass instead of fish and would fling their dung so he can inspect it for fish bones. Sony VPCY21S1E/L battery In a Ndebele tale, the hippo originally had long, beautiful hair but was set on fire by a jealous hare and had to jump into a nearby pool. The hippo lost most of his hair and was too embarrassed to leave the water.[71]

Ever since Obaysch inspired the Hippopotamus Polka, hippos have been popular animals in Western culture for their rotund appearance that many consider comical.[64] Stories of hippos like Huberta who became a celebrity in South Africa in the 1930s for trekking across the country; Sony VPCY21S1E/G battery or the tale of Owen and Mzee, a hippo and tortoise who developed an intimate bond; have amused people who have bought hippo books, merchandise, and many a stuffed hippo toy.[73][74] Hippos were mentioned in the novelty Christmas song "I Want a Hippopotamus for Christmas" that became a hit for child star Gayla Peevey in 1953. Sony VPCY11S1E/S batteryThey also feature in the songs "The Hippopotamus" and "Hippo Encore" by Flanders and Swann, with the famous refrain Mud, Mud, Glorious Mud. They even inspired a popular board game, Hungry Hungry Hippos.

Hippos have also been popular cartoon characters, where their rotund frame is used for humorous effect. The Disney film Fantasia featured a ballerina hippopotamus dancing to the opera, La Gioconda. Sony VPCY11S1E batteryOther cartoon hippos have included Hanna-Barbera's Peter Potamus, the book and TV series George and Martha, Flavio and Marita on the Animaniacs, Pat of the French duo Pat et Stanley, The Backyardigan's Tasha, and Gloria and Moto-Moto from the Madagascar franchise. A Sesame Street cartoon from the early 1970s features a hippo who lives in the country and likes it quiet, while being disturbed when the mouse who likes it loud moves in with herSony VPCZ11X9E/B battery.

The hippopotamus characters "Happy Hippos" were created in 1988 by the French designer Andre Roche [78] based in Munich, to be hidden in the "Kinder Surprise egg" of the Italian chocolate company Ferrero SpA. These characters were not placid like real hippos but rather cute and lively, and had such a success that they reappeared several times in different products of this company in the following years, increasing their popularity worldwide each timeSony VPCZ11Z9E/B battery. The Nintendo Company published in the years 2001 and 2007 Game Boy adventures of them. In the game of chess, the hippopotamus lends its name to the Hippopotamus Defense, an opening system, which is generally considered weak.The River Horse is a popular outdoor sculpture at George Washington University, Washington, D.CSony VPCZ12M9E/B battery.

 
A butterfly is a mainly day-flying insect of the order Lepidoptera, which includes the butterflies and moths. Like other holometabolous insects, the butterfly's life cycle consists of four parts: egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured wings, and conspicuous, fluttering flightSony VAIO PCG-31114V battery. Butterflies comprise the true butterflies (superfamily Papilionoidea), the skippers (superfamily Hesperioidea) and the moth-butterflies (superfamily Hedyloidea). All the many other families within the Lepidoptera are referred to as moths. The earliest known butterfly fossils date to the mid Eocene epoch, between 40–50 million years agoSony VAIO PCG-31113V battery.

Butterflies exhibit polymorphism, mimicry and aposematism. Some, like the Monarch, will migrate over long distances. Some butterflies have evolved symbiotic and parasitic relationships with social insects such as ants. Some species are pests because in their larval stages they can damage domestic crops or treesSony VAIO PCG-31112V battery; however, some species are agents of pollination of some plants, and caterpillars of a few butterflies (e.g., Harvesters) eat harmful insects. Culturally, butterflies are a popular motif in the visual and literary arts.

Etymology

The name is derived from Middle English buterflie, butturflye, boterflye, from Old English butorflēoge, buttorflēoge, buterflēoge, perhaps a compound of butor (beater), mutation of bēatan (to beat), and flēoge (fly). Sony VAIO PCG-31111V battery

Alternate etymology connects the first element to butere (butter) as the name may have originally been applied solely to butterflies of a yellowish or butter-colour. This may have merged later with the belief that butterflies ate milk and butter (compare Middle High German molkendiep -literally “milk-thief”; Modern German Molkendieb and Low German BotterlickerSony VAIO PCG-31114M battery - literally “butter-licker”), or that they excreted a butter-like substance (compare Middle Dutch boterschijte - literally “butter-shitter”, also Middle Dutch botervliege, Dutch botervlieg, German butterfliege).

Life cycle

It is a popular belief that butterflies have very short life spans.[by whom?] However, butterflies in their adult stage can live from a week to nearly a year depending on the species. Many species have long larval life stages while others can remain dormant in their pupal or egg stages and thereby survive winters. Sony VAIO PCG-31113M battery

Butterflies may have one or more broods per year. The number of generations per year varies from temperate to tropical regions with tropical regions showing a trend towards multivoltinism.

Eggs

Egg of Ariadne merione

Butterfly eggs are protected by a hard-ridged outer layer of shell, called the chorion. This is lined with a thin coating of wax which prevents the egg from drying out before the larva has had time to fully developSony VAIO PCG-31112M battery. Each egg contains a number of tiny funnel-shaped openings at one end, called micropyles; the purpose of these holes is to allow sperm to enter and fertilize the egg. Butterfly and moth eggs vary greatly in size between species, but they are all either spherical or ovate.

Butterfly eggs are fixed to a leaf with a special glue which hardens rapidly. As it hardens it contracts, deforming the shape of the eggSony VAIO PCG-31111M battery. This glue is easily seen surrounding the base of every egg forming a meniscus. The nature of the glue is unknown and is a suitable subject for research. The same glue is produced by a pupa to secure the setae of the cremaster. This glue is so hard that the silk pad, to which the setae are glued, cannot be separatedSony VAIO PCG-41111V battery.

Eggs are almost invariably laid on plants. Each species of butterfly has its own hostplant range and while some species of butterfly are restricted to just one species of plant, others use a range of plant species, often including members of a common family.

The egg stage lasts a few weeks in most butterflies but eggs laid close to winter, especially in temperate regions, go through a diapause (resting) stageSony VAIO PCG-41112M battery, and the hatching may take place only in spring. Other butterflies may lay their eggs in the spring and have them hatch in the summer. These butterflies are usually northern species, such as the Mourning Cloak (Camberwell Beauty) and the Large and Small Tortoiseshell butterflies.Sony VAIO PCG-41111M battery

Caterpillars

Caterpillars of Junonia coenia.

Butterfly larvae, or caterpillars, consume plant leaves and spend practically all of their time in search of food. Although most caterpillars are herbivorous, a few species such as Spalgis epius and Liphyra brassolis are entomophagous (insect eating).

Some larvae, especially those of the Lycaenidae, form mutual associations with ants. They communicate with the ants using vibrations that are transmitted through the substrate as well as using chemical signals. SONY VAIO PCG-21214V batteryThe ants provide some degree of protection to these larvae and they in turn gather honeydew secretions.

Caterpillars mature through a series of stages called instars. Near the end of each instar, the larva undergoes a process called apolysis, in which the cuticle, a tough outer layer made of a mixture of chitin and specialized proteins, is released from the softer epidermis beneath, and the epidermis begins to form a new cuticle beneathSONY VAIO PCG-21213V battery. At the end of each instar, the larva moults the old cuticle, and the new cuticle expands, before rapidly hardening and developing pigment. Development of butterfly wing patterns begins by the last larval instar.

Butterfly caterpillars have three pairs of true legs from the thoracic segments and up to 6 pairs of prolegs arising from the abdominal segments. These prolegs have rings of tiny hooks called crochets that help them grip the substrate.SONY VAIO PCG-21212V battery

Some caterpillars have the ability to inflate parts of their head to appear snake-like. Many have false eye-spots to enhance this effect. Some caterpillars have special structures called osmeteria which are everted to produce smelly chemicals. These are used in defense.

Host plants often have toxic substances in them and caterpillars are able to sequester these substances and retain them into the adult stageSONY VAIO PCG-21212M battery. This makes them unpalatable to birds and other predators. Such unpalatibility is advertised using bright red, orange, black or white warning colours, a practice known as aposematism. The toxic chemicals in plants are often evolved specifically to prevent them from being eaten by insects. Insects in turn develop countermeasures or make use of these toxins for their own survivalSONY VAIO PCG-21211M battery. This "arms race" has led to the coevolution of insects and their host plants.[7]

Wing development

Last instar wing disk, Junonia coenia

Detail of a butterfly wing

Wings or wing pads are not visible on the outside of the larva, but when larvae are dissected, tiny developing wing disks can be found on the second and third thoracic segments, in place of the spiracles that are apparent on abdominal segmentsSONY VAIO PCG-51212M battery. Wing disks develop in association with a trachea that runs along the base of the wing, and are surrounded by a thin peripodial membrane, which is linked to the outer epidermis of the larva by a tiny duct.

Wing disks are very small until the last larval instar, when they increase dramatically in size, are invaded by branching tracheae from the wing base that precede the formation of the wing veins, and begin to develop patterns associated with several landmarks of the wingSONY VAIO PCG-51211M battery.

Near pupation, the wings are forced outside the epidermis under pressure from the hemolymph, and although they are initially quite flexible and fragile, by the time the pupa breaks free of the larval cuticle they have adhered tightly to the outer cuticle of the pupa (in obtect pupae). Within hours, the wings form a cuticle so hard and well-joined to the body that pupae can be picked up and handled without damage to the wings. SONY VAIO PCG-51112M battery

Pupa

Chrysalis of Gulf Fritillary

When the larva is fully grown, hormones such as prothoracicotropic hormone (PTTH) are produced. At this point the larva stops feeding and begins "wandering" in the quest of a suitable pupation site, often the underside of a leaf.

The larva transforms into a pupa (or chrysalis) by anchoring itself to a substrate and moulting for the last time. The chrysalis is usually incapable of movement, although some species can rapidly move the abdominal segments or produce sounds to scare potential predatorsSONY VAIO PCG-51111M battery.

The pupal transformation into a butterfly through metamorphosis has held great appeal to mankind. To transform from the miniature wings visible on the outside of the pupa into large structures usable for flight, the pupal wings undergo rapid mitosis and absorb a great deal of nutrients. If one wing is surgically removed early onSONY VAIO PCG-51111V battery, the other three will grow to a larger size. In the pupa, the wing forms a structure that becomes compressed from top to bottom and pleated from proximal to distal ends as it grows, so that it can rapidly be unfolded to its full adult size. Several boundaries seen in the adult color pattern are marked by changes in the expression of particular transcription factors in the early pupa. SONY VAIO PCG-81211V battery

Adult or imago

The adult, sexually mature, stage of the insect is known as the imago. As Lepidoptera, butterflies have four wings that are covered with tiny scales (see photo). The fore and hindwings are not hooked together, permitting a more graceful flight. An adult butterfly has six legs, but in the nymphalids, the first pair is reduced. After it emerges from its pupal stageSONY VAIO PCG-81111V battery, a butterfly cannot fly until the wings are unfolded. A newly emerged butterfly needs to spend some time inflating its wings with blood and letting them dry, during which time it is extremely vulnerable to predators. Some butterflies' wings may take up to three hours to dry while others take about one hour. Most butterflies and moths will excrete excess dye after hatching. This fluid may be white, red, orange, or in rare cases, blue. SONY VAIO PCG-81212M battery

External morphology

Adult butterflies have four wings: a forewing and hindwing on both the left and the right side of the body. The body is divided into three segments: the head, thorax, and the abdomen. They have two antennae, two compound eyes, and a proboscis.

Scales

Butterflies are characterized by their scale-covered wings. The coloration of butterfly wings is created by minute scalesSony VAIO PCG-81112M battery. These scales are pigmented with melanins that give them blacks and browns, but blues, greens, reds and iridescence are usually created not by pigments but the microstructure of the scales. This structural coloration is the result of coherent scattering of light by the photonic crystal nature of the scales. The scales cling somewhat loosely to the wing and come off easily without harming the butterflySONY VAIO PCG-71111M battery.

Polymorphism

Main article: Polymorphism (biology)

Many adult butterflies exhibit polymorphism, showing differences in appearance. These variations include geographic variants and seasonal forms. In addition many species have females in multiple forms, often with mimetic forms. Sexual dimorphism in coloration and appearance is widespread in butterfliesSONY VAIO PCG-7192V battery. In addition many species show sexual dimorphism in the patterns of ultraviolet reflectivity, while otherwise appearing identical to the unaided human eye. Most of the butterflies have a sex-determination system that is represented as ZW with females being the heterogametic sex (ZW) and males homogametic (ZZ). SONY VAIO PCG-7191V battery

Genetic abnormalities such as gynandromorphy also occur from time to time. In addition many butterflies are infected by Wolbachia and infection by the bacteria can lead to the conversion of males into females[12] or the selective killing of males in the egg stage.[13]

Mimicry

The Heliconius butterflies from the tropics of the Western Hemisphere are the classical model for Müllerian mimicry.SONY VAIO PCG-7196M battery

Batesian and Mullerian mimicry in butterflies is common. Batesian mimics imitate other species to enjoy the protection of an attribute they do not share, aposematism in this case. The Common Mormon of India has female morphs which imitate the unpalatable red-bodied swallowtails, the Common Rose and the Crimson RoseSONY VAIO PCG-7195M battery. Mullerian mimicry occurs when aposematic species evolve to resemble each other, presumably to reduce predator sampling rates, the Heliconius butterflies from the Americas being a good example.

Wing markings called eyespots are present in some species; these may have an automimicry role for some species. In others, the function may be intraspecies communicationSONY VAIO PCG-7194M battery, such as mate attraction. In several cases, however, the function of butterfly eyespots is not clear, and may be an evolutionary anomaly related to the relative elasticity of the genes that encode the spots.[15][16]

Seasonal polyphenism

Many of the tropical butterflies have distinctive seasonal forms. This phenomenon is termed seasonal polyphenism and the seasonal forms of the butterflies are called the dry-season and wet-season formsSONY VAIO PCG-7192M battery. How the season affects the genetic expression of patterns is still a subject of research.[17] Experimental modification by ecdysone hormone treatment has demonstrated that it is possible to control the continuum of expression of variation between the wet and dry-season forms.[18] The dry-season forms are usually more cryptic and it has been suggested that the protection offered may be an adaptationSONY PCG-8113M battery. Some also show greater dark colours in the wet-season form which may have thermoregulatory advantages by increasing ability to absorb solar radiation.[19]

Bicyclus anynana is a species of butterfly that exhibits a clear example of seasonal polyphenism. These butterflies, endemic to Africa, have two distinct phenotypic forms that alternate according to the seasonSONY PCG-8112M battery. The wet-season forms have large, very apparent ventral eyespots whereas the dry-season forms have very reduced, oftentimes nonexistent, ventral eyespots. Larvae that develop in hot, wet conditions develop into wet-season adults whereas those growing in the transition from the wet to the dry season, when the temperature is declining, develop into dry-season adults. SONY PCG-7134M battery This polyphenism has an adaptive role in B. anynana. In the dry-season it is disadvantageous to have conspicuous eyespots because B. anynana blend in with the brown vegetation better without eyespots. By not developing eyespots in the dry-season they can more easily camouflage themselves in the brown brush. This minimizes the risk of visually mediated predationSONY PCG-7131M battery. In the wet-season, these brown butterflies cannot as easily rely on cryptic coloration for protection because the background vegetation is green. Thus, eyespots, which may function to decrease predation, are beneficial for B. anynana to express.[21]

Habits

Antennal shape in the Lepidoptera from C. T. Bingham (1905)

The Australian painted lady feeding on a flowering shrub

Butterflies feed primarily on nectar from flowers. Some also derive nourishment from pollen,[22] tree sap, rotting fruit, dung, decaying fleshSONY PCG-7122M battery , and dissolved minerals in wet sand or dirt. Butterflies are important as pollinators for some species of plants although in general they do not carry as much pollen load as bees. They are however capable of moving pollen over greater distances.[23] Flower constancy has been observed for at least one species of butterfly. SONY PCG-7121M battery

As adults, butterflies consume only liquids which are ingested by means of their proboscis. They sip water from damp patches for hydration and feed on nectar from flowers, from which they obtain sugars for energy as well as sodium and other minerals vital for reproduction. Several species of butterflies need more sodium than that provided by nectar and are attracted by sodium in saltSONY PCG-7113M battery; they sometimes land on people, attracted by the salt in human sweat. Some butterflies also visit dung, rotting fruit or carcasses to obtain minerals and nutrients. In many species, this mud-puddling behaviour is restricted to the males, and studies have suggested that the nutrients collected may be provided as a nuptial gift along with the spermatophore, during mating. SONY PCG-7112M battery

Butterflies use their antennae to sense the air for wind and scents. The antennae come in various shapes and colours; the hesperids have a pointed angle or hook to the antennae, while most other families show knobbed antennae. The antennae are richly covered with sensory organs known as sensillaeSONY PCG-8Z3M battery. A butterfly's sense of taste, 200 times stronger than humans,[26] is coordinated by chemoreceptors on the tarsi, or feet, which work only on contact, and are used to determine whether an egg-laying insect's offspring will be able to feed on a leaf before eggs are laid on it.[27] Many butterflies use chemical signals, pheromones, and specialized scent scales (androconia) and other structures SONY PCG-8Z2M battery (coremata or "hair pencils" in the Danaidae) are developed in some species.

Vision is well developed in butterflies and most species are sensitive to the ultraviolet spectrum. Many species show sexual dimorphism in the patterns of UV reflective patches.[28] Color vision may be widespread but has been demonstrated in only a few species.[29][30]

Some butterflies have organs of hearing and some species are also known to make stridulatory and clicking sounds.SONY PCG-8Z1M battery

Monarch butterflies

Many butterflies, such as the Monarch butterfly, are migratory and capable of long distance flights. They migrate during the day and use the sun to orient themselves. They also perceive polarized light and use it for orientation when the sun is hidden.[32]

Many species of butterfly maintain territories and actively chase other species or individuals that may stray into themSONY PCG-8Y3M battery. Some species will bask or perch on chosen perches. The flight styles of butterflies are often characteristic and some species have courtship flight displays. Basking is an activity which is more common in the cooler hours of the morning. Many species will orient themselves to gather heat from the sun. Some species have evolved dark wingbases to help in gathering more heat and this is especially evident in alpine forms. SONY PCG-8Y2M battery

Flight

Heteronympha merope taking off

See also Insect flight

Like many other members of the insect world, the lift generated by butterflies is more than what can be accounted for by steady-state, non-transitory aerodynamics. Studies using Vanessa atalanta in a windtunnel show that they use a wide variety of aerodynamic mechanisms to generate force. These include wake capture, vortices at the wing edgeSONY PCG-7Z1M battery, rotational mechanisms and Weis-Fogh 'clap-and-fling' mechanisms. The butterflies were also able to change from one mode to another rapidly.[34]

Migration

The Monarch butterfly migrates large distances

Main article: Lepidoptera migration

See also Insect migration

Many butterflies migrate over long distances. Particularly famous migrations are those of the Monarch butterfly from Mexico to northern USA and southern Canada, a distance of about 4000 to 4800 km (2500–3000 miles) SONY PCG-6W2M battery . Other well known migratory species include the Painted Lady and several of the Danaine butterflies. Spectacular and large scale migrations associated with the Monsoons are seen in peninsular India.[35] Migrations have been studied in more recent times using wing tags and also using stable hydrogen isotopes. SONY PCG-5J5M battery

Butterflies have been shown to navigate using time compensated sun compasses. They can see polarized light and therefore orient even in cloudy conditions. The polarized light in the region close to the ultraviolet spectrum is suggested to be particularly important.[38]

It is suggested that most migratory butterflies are those that belong to semi-arid areas where breeding seasons are short. SONY PCG-5K2M battery  The life-histories of their host plants also influence the strategies of the butterflies.[40]

Defense

Wings of a butterfly (Leopard Lacewing Cethosia cyane) become increasingly damaged as they age, and do not repair

See also Defense in insects

Butterflies are threatened in their early stages by parasitoids and in all stages by predators, diseases and environmental factors. They protect themselves by a variety of means.

Chemical defenses are widespread and are mostly based on chemicals of plant originSONY PCG-5K1M battery. In many cases the plants themselves evolved these toxic substances as protection against herbivores. Butterflies have evolved mechanisms to sequester these plant toxins and use them instead in their own defense.[41] These defense mechanisms are effective only if they are also well advertised and this has led to the evolution of bright colours in unpalatable butterfliesSONY PCG-5J4M battery. This signal may be mimicked by other butterflies. These mimetic forms are usually restricted to the females.

Eyespots on wings of Speckled Wood, Pararge aegeria, appear to distract predators from attacking the head. The left hind wing has been badly damaged by birds, but the insect is alive and able to fly.

Cryptic coloration is found in many butterflies. Some like the oakleaf butterfly are remarkable imitations of leaves.SONY PCG-5J1M battery  As caterpillars, many defend themselves by freezing and appearing like sticks or branches. Some papilionid caterpillars resemble bird dropping in their early instars. Some caterpillars have hairs and bristly structures that provide protection while others are gregarious and form dense aggregations. Some species also form associations with ants and gain their protection (See Myrmecophile) SONY PCG-5G2M battery.

Behavioural defenses include perching and wing positions to avoid being conspicuous. Some female Nymphalid butterflies are known to guard their eggs from parasitoid wasps.[43]

Eyespots and tails are found in many lycaenid butterflies. It is thought that their function is to divert the attention of predators from the more vital head region. An alternative theory is that these cause ambush predators such as spiders to approach from the wrong end and allow for early visual detection. Sony VAIO PCG-8131M battery

A butterfly's hind wings are thought to allow them to take swift, tight turns to evade predators.[45]

Notable species

Rusty-tipped Page (Siproeta epaphus), Butterfly World (Florida)

There are between 15,000 and 20,000 species of butterflies worldwide. Some well-known species from around the world include:

Swallowtails and Birdwings, Family Papilionidae

Common Yellow Swallowtail, Papilio machaon

Spicebush Swallowtail, Papilio troilus

Lime Butterfly, Papilio demoleus

Ornithoptera genus (Birdwings; the largest butterflies)

Whites and Yellows, Family PieridaeSony VAIO PCG-8152M battery

Small White, Pieris rapae

Green-veined White, Pieris napi

Common Jezebel, Delias eucharis

Blues and Coppers or Gossamer-Winged Butterflies, Family Lycaenidae

Xerces Blue, Glaucopsyche xerces (extinct)

Karner Blue, Lycaeides melissa samuelis (endangered)

Red Pierrot, Talicada nyseus

Metalmark butterflies, Family Riodinidae

Duke of Burgundy, Hamearis lucina

Plum Judy, Abisara echerius

Brush-footed butterflies, Family Nymphalidae

Painted Lady, or Cosmopolitan, Vanessa cardui

Monarch butterfly, Danaus plexippus

Morpho genusSony VAIO PCG-31311M battery

Speckled Wood, Pararge aegeria

Skippers, Family Hesperiidae

Mallow Skipper, Carcharodus alceae

Zabulon Skipper, Poanes zabulon

In culture

Art

Artistic depictions of butterflies have been used in many cultures including Egyptian hieroglyphs 3500 years ago.[46]

In the ancient Mesoamerican city of Teotihuacan, the brilliantly colored image of the butterfly was carved into many temples, buildings, jewelry, and emblazoned on incense burners in particularSony VAIO PCG-31111M battery. The butterfly was sometimes depicted with the maw of a jaguar and some species were considered to be the reincarnations of the souls of dead warriors. The close association of butterflies to fire and warfare persisted through to the Aztec civilization and evidence of similar jaguar-butterfly images has been found among the Zapotec, and Mayan civilizationsSony VAIO PCG-8112M battery.

A serving tray decorated with butterfly wings

Today, butterflies are widely used in various objects of art and jewelry: mounted in frame, embedded in resin, displayed in bottles, laminated in paper, and used in some mixed media artworks and furnishings.[48] Butterflies have also inspired the "butterfly fairy" as an art and fictional character, including in the Barbie Mariposa filmSony VAIO PCG-7186M battery.

Symbolism

According to Kwaidan: Stories and Studies of Strange Things, by Lafcadio Hearn, a butterfly was seen in Japan as the personification of a person's soul; whether they be living, dying, or already dead. One Japanese superstition says that if a butterfly enters your guestroom and perches behind the[bamboo screen, the person whom you most love is coming to see youSony VAIO PCG-7171M battery. However, large numbers of butterflies are viewed as bad omens. When Taira no Masakado was secretly preparing for his famous revolt, there appeared in Kyoto so vast a swarm of butterflies that the people were frightened — thinking the apparition to be a portent of coming evil.[49]

The Russian word for "butterfly", бабочка (bábochka), also means "bow tie". It is a diminutive of "baba" or "babka" (= "woman, grandmother, cake"), whence also "babushka" = "grandmother"Sony VAIO PCG-9Z1M battery.

The ancient Greek word for "butterfly" is ψυχή (psȳchē), which primarily means "soul" or "mind".[50]

According to Mircea Eliade's Encyclopedia of Religion, some of the Nagas of Manipur trace their ancestry from a butterfly.

Butterfly and Chinese wisteriaflowers, by Xü Xi (c.886–c.975), painted around 970 during the early Song DynastySony VAIO PCG-5S1M battery.

In Chinese culture, two butterflies flying together symbolize love. Also, Butterfly Lovers is a famous Chinese folktale. The Taoist philosopher, Zhuangzi, once had a dream about being a butterfly that flew without care about humanity; however; when he awoke and realized that it was just a dream, he thought to himself, "Was I before a man who dreamt about being a butterfly, or am I now a butterfly who dreams about being a manSony VAIO PCG-5P1M battery?"

In some old cultures, butterflies also symbolize rebirth after being inside a cocoon for a period of time.

Jose Rizal delivered a speech in 1884 at a banquet and mentioned "the Oriental chrysalis ... is about to leave its cocoon", comparing the emergence of a "new Philippines" with that of butterfly metamorphosis. Sony VAIO PCG-5N2M battery He has also often used the butterfly imagery in his poems and other writings to express the Spanish Colonial Filipinos' longing for liberty.[53] Much later, in a letter to Ferdinand Blumentritt, Rizal compared his life in exile to a weary butterfly with sun-burnt wings.

Der Schmetterlingsjäger (The butterfly hunter) by Carl Spitzweg (1840), a depiction from the era of butterfly collectionSony VAIO PCG-3C2M battery.

Some people say that when a butterfly lands on you it means good luck.[citation needed] However, in Devonshire, people would traditionally rush around to kill the first butterfly of the year that they see, or else face a year of bad luck.[55] Also, in the Philippines, a lingering black butterfly or moth in the house is taken to mean that someone in the family has died or will soon die. Sony VAIO PCG-8161M battery

The idiom "butterflies in the stomach" is used to describe a state of nervousness.

In the NBC television show Kings, butterflies are the national symbol of the fictional nation of Gilboa and a sign of God's favor.

Technological inspiration

Researches on the wing structure of Palawan Birdwing butterflies led to new wide wingspan kite and aircraft designs.[57]

Studies on the reflection and scattering of light by the scales on wings of swallowtail butterflies led to the innovation of more efficient light-emitting diodes. Sony VAIO PCG-8141M battery

The structural coloration of butterflies is inspiring nanotechnology research to produce paints that do not use toxic pigments and in the development of new display technologies.

The discoloration and health of butterflies in butterfly farms, is now being studied for use as indicators of air quality in several cities.

The silkworm is the larva or caterpillar of the domesticated silkmoth, Bombyx mori (Latin: "silkworm of the mulberry tree")Sony VAIO PCG-3J1M battery. It is an economically important insect, being a primary producer of silk. A silkworm's preferred food is white mulberry leaves, but it may also eat the leaves of any other mulberry tree (i.e., Morus rubra or Morus nigra)[citation needed] as well as the Osage Orange. It is entirely dependent on humans for its reproduction and does not occur naturally in the wildSony VAIO PCG-3H1M battery. Sericulture, the practice of breeding silkworms for the production of raw silk, has been underway for at least 5,000 years in China,[1] from where it spread to Korea and Japan, and later to India and the West. The silkworm was domesticated from the wild silkmoth Bombyx mandarina which has a range from northern India to northern China, KoreaSony VAIO PCG-3F1M battery, Japan and far the eastern regions of Russia. The domesticated silkworm derives from Chinese rather than Japanese or Korean stock.[2][3] It is unlikely that silkworms were domestically bred before the Neolithic age: it was not until then that the tools required to facilitate the manufacturing of larger quantities of silk thread had been developed
Sony VAIO PCG-3C1M battery
. The domesticated B. mori and the wild B. mandarina can still breed and sometimes produce hybrids.

Types

Mulberry silkworms can be categorized into 3 different, but connected groups or types. The major groups of silkworms fall under the univoltine and bivoltine categories. The Univoltine breed is generally linked with the geographical area within greater Europe. The eggs of this type hibernate during winter due to the cold climate, and cross fertilise only by springSony VAIO PCG-9Z2L battery, generating silk only once annually. The second type of breed is called Bivoltine and is normally found in Asian regions such as China, Japan, and Korea. The breeding process of this type takes place twice annually, a feat made possible through the slightly warmer climates and the resulting two lifecycles. The Polyvoltine breed of mulberry silkworm can only be located in the tropicsSony VAIO PCG-9Z1L battery. The eggs are laid by female moths and hatch within nine to twelve days, so the resulting type can have up to 8 separate lifecycles throughout the year.[5]

Process

Eggs take about fourteen days to hatch into larvae, which eat continuously. They have a preference for white mulberry, having an attraction to the mulberry odorant cis-jasmone. They are not monophagous since they can eat other species of Morus as well as some other MoraceaeSony VAIO PCG-9131L battery. Their droppings are black. Hatchlings and second-instar larvae are called kego and chawki in India. They are covered with tiny black hairs. When the color of their heads turns darker, it indicates that they are about to molt. After molting, the instar phase of the silkworm emerges white, naked, and with little horns on the backs.

After they have molted four times (i.e., in the fifth instar phase), their bodies become slightly yellow and the skin becomes tighterSony VAIO PCG-8161L battery. The larvae will then enter the pupa phase of their life cycle and enclose themselves in a cocoon made up of raw silk produced by the salivary glands. The cocoon provides a vital layer of protection during the vulnerable, almost motionless pupal state. Many other Lepidoptera produce cocoons, but only a few—the Bombycidae, in particular the Bombyx genusSony VAIO PCG-8152L battery, and the Saturniidae, in particular the Antheraea genus—have been exploited for fabric production.

If the animal is allowed to survive after spinning its cocoon and through the pupa phase of its life cycle, it will release proteolytic enzymes to make a hole in the cocoon so that it can emerge as a moth. These enzymes are destructive to the silk and can cause the silk fibers to break down from over a mile in length to segments of random length, which ruins the silk threadsSony VAIO PCG-8141L battery. To prevent this, silkworm cocoons are boiled. The heat kills the silkworms and the water makes the cocoons easier to unravel. Often, the silkworm itself is eaten (see Cuisine). The moth – the adult phase of the life cycle – cannot fly. Silkmoths have a wingspan of 3–5 cm (1.5–2 inches) and a white hairy body. Females are about two to three times bulkier than males (for they are carrying many eggs) Sony VAIO PCG-8131L battery, but are similarly colored. Adult Bombycidaes have reduced mouth parts and do not feed, though a human caretaker can also[clarification needed] feed them.

Cocoon

Cocoon

The cocoon is made of a thread of raw silk from 300 to about 900 meters (1,000 to 3,000 feet) long. The fibers are very fine and lustrous, about 10 micrometers (1/2,500th of an inch) in diameter. About 2,000 to 3,000 cocoons are required to make a pound of silk (0,4kg) Sony VAIO PCG-81312L battery. At least 70 million pounds of raw silk are produced each year, requiring nearly 10 billion pounds of mulberry leaves. The FAO estimates the world production of raw silk at 164971 tonnes in 2009[6] . According to E. L. Palmer, one pound of silk represents about 1,000 miles of filament. The annual world production represents 70 billion miles of silk filament. This silk is usually processed to remove natural waxes or gums such as the sericinSony VAIO PCG-81214L battery, a water-soluble protective layer that solidifies immediately when exposed to air. It is sometimes subsequently dyed.

Research

Due to its miniature size and ease of culture, the silkworm has become a model organism in the study of Lepidopteran and arthropod biology. Fundamental findings on pheromones, hormones, brain structures and physiology have been made with the silkworm. One example of this was the molecular identification of the first known pheromoneSony VAIO PCG-81115L battery, bombykol which required extracts from 500,000 individuals, due to the very small quantities of pheromone produced by any individual worm.[citation needed]

Currently, research is focusing on genetics of silkworms and the possibility of genetic engineering. Many hundreds of strains are maintained, and over 400 Mendelian mutations have been described. Sony VAIO PCG-81114L batteryAnother source suggests 1000 inbred domesticated strains are kept worldwide.[8] One useful development for the silk industry are silkworms that can feed on food other than mulberry leaves, including an artificial diet.[citation needed] Research on the genome also raises the possibility of genetically engineering silkworms to produce proteins, including pharmacological drugs, in the place of silk proteinsSony VAIO PCG-81113L battery.

Kraig Biocraft Laboratories[9] has used research from the Universities of Wyoming and Notre Dame in a collaborative effort to create a silkworm that is genetically altered to produce spider silk. In September 2010 it was announced at a press conference at the University of Notre Dame that the effort had been successful. Sony VAIO PCG-7142L battery

In January 2010, National University of Singapore together with Republic Polytechnic were in the process of creating "super" silk.[11] The "super" silk are produced by coaxing "silkworms to spin stronger silk by exposing them (silkworms) to an electric field before they (silkworms) spin" .[12] Silk produced through this new method is so strong as to be bullet-proofSony VAIO PCG-7141L battery.

Researchers at Tufts developed scaffolds made of spongy silk that feel and look similar to human tissue. They are implanted during reconstructive surgery to support or restructure damaged ligaments, tendons, and other tissue. They also created implants made of silk and drug compounds which can be implanted under the skin for steady and gradual time release of medications. Sony VAIO PCG-71111L battery

Domestication

The domesticated variety, compared to the wild form, has increased cocoon size, growth rate and efficiency of its digestion. It has also gained tolerance to human presence and handling and living in crowded conditions. It also cannot fly and lacks fear of potential predators. These changes have made it entirely dependent upon humans for survival.Sony VAIO PCG-61411L battery

Silkworm breeding

Pupa

The silkworm is one of the world's most genetically modified animals. Silkworms were first domesticated in China over 5000 years ago.[15][16] Since then, the silk production capacity of the species has increased nearly tenfold. Silkworm is one of the few organisms wherein the principles of genetics and breeding were applied to harvest maximum outputSony VAIO PCG-61112L battery. It is next only to maize in exploiting the principles of 'heterosis' and 'cross breeding'. Silkworm breeding is aimed at the overall improvement of silkworm from a commercial point of view. The major objectives of silkworm breeding are improving fecundity, healthiness of larvae, quantity of cocoon and silk production, disease resistance, etc. Fecundity refers to the egg laying capacity of a breedSony VAIO PCG-61111L battery. It is a very important factor, since commercial sericulture is strongly dependent on silkworm egg availability. Healthiness of larvae leads to a healthy cocoon crop. Healthiness is dependent on factors such as better pupation rate, fewer dead larvae in the mountage, shorter larval duration (the shorter the larval duration, the lesser the chances of infection) and bluish tinged fifth instar larvaeSony VAIO PCG-5T4L battery (it is observed that bluish colored fifth instar larvae are healthier than the reddish brown ones). Quantity of cocoon and silk produced is directly related to the pupation rate and larval weight. Healthier larvae have greater pupation rates and cocoon weights. Quality of cocoon and silk depends on a number of factors including genetics. Specific purposes apart from commercial purpose are given attention by advanced countries to breed development for specific purposes like sericin productionSony VAIO PCG-5T3L battery, sex limited breeds, thin/thick filament production etc. Disease resistance breeding is important, as the major reason for crop losses is pathogen infection. Efforts are being made to select breeds which are tolerant or resistant to various pathogens. [1]

Silkworm raising as hobby and school science project

In the USA, teachers may sometimes introduce insect life cycle to their students by raising silkworms in the classroom as a science project. Students have a chance to observe complete life cycles of insect from egg stage to larvae, pupa, moth and eggsSony VAIO PCG-5T2L battery.

The silkworm has been raised as a hobby in China and South Africa. Children often pass on the eggs, creating a noncommercial population. The experience provides children with the opportunity to witness the lifecycle of silkworms. The practice of raising silkworms by children as pets has, in the non-silkfarming country of South Africa, led to the development of extremely hardy landraces of silkwormSony VAIO PCG-5S3L battery. This is because they are invariably subjected to hardships not encountered by commercially-farmed members of the species.[17] However, these worms, not being selectively bred as such, are possibly inferior in silk production and may exhibit other undesirable traits.

Genome

The full genome of the silkworm was published in 2008 by the International Silkworm Genome Consortium. Sony VAIO PCG-5S2L battery

The genome of the silkworm is mid-range with a genome size of ~432 Mb. It was published in 2008 by the International Silkworm Genome Consortium.[8] A draft sequence was published in 2004.[18]

High genetic variability has been found in domestic lines of silkworms, though this is less than that among wild silkmoths (~83%)Sony VAIO PCG-5S1L battery. This suggests a single event of domestication, and that it happened over a short period of time, with a large number of wild worms having been collected for domestication.[19] Major questions, however, remain unanswered: “Whether this event was in a single location or in a short period of time in several locations cannot be deciphered from the data,” Research also has yet to identify the area in China where domestication arose. Sony VAIO PCG-5R2L battery

Cuisine

Silkworm pupae dishes

Like many insect species, silkworm pupae are eaten in some cultures (see Entomophagy). This unusual food may go by the English phrase "ground cucumber."

In Assam, India, they are boiled for extracting silk and the boiled pupa is taken directly with salt or fried with chilli pepper and or herbs to take as snack or dish.

In Korea, they are boiled and seasoned to make a popular snack food known as beondegi.

In China, street vendors sell roasted silkworm pupaeSony VAIO PCG-5R1L battery.

In Vietnam, this is known as con nhộng.

Silkworms have also been proposed for cultivation by astronauts as space food on long-term missions.[21]

Silkworm legends

In China, there is a legend that the discovery of the silkworm's silk was by an ancient empress Lei Zu, the wife of the Yellow Emperor and the daughter of XiLing-Shi. She was drinking tea under a tree when a silk cocoon fell into her teaSony VAIO PCG-5P4L battery. As she picked it out and started to wrap the silk thread around her finger, she slowly felt a warm sensation. When the silk ran out, she saw a small larva. In an instant, she realized that this caterpillar larva was the source of the silk. She taught this to the people and it became widespread. There are many more legends about the silkwormSony VAIO PCG-5P2L battery.

The Chinese guarded their knowledge of silk, but, according to one story, a Chinese princess given in marriage to a Khotan prince brought to the oasis the secret of silk-manufacture, "hiding silkworms in her hair as part of her dowry", probably in the first half of the 1st century CE.[22] It is also said that about AD 550, Christian monks smuggled silkworms, in a hollow stick, out of China and sold the secret to the Byzantine EmpireSony VAIO PCG-5N4L battery.

Silkworm diseases

Nosema bombycis is a microsporidium that kills 100% of silkworms hatched from infected eggs. This disease can be carried over from worms to moths, then eggs and worms again. This microsporidium comes from the food that silkworms eat. If silkworms get this microsporidium in their worm stage, there are no visible symptomsSony VAIO PCG-5N2L battery. However, mother moths will pass the disease onto the eggs, and 100% of worms hatching from the diseased eggs will die in their worm stage. To prevent this disease, it is therefore extremely important to rule out all eggs from infected moths by checking the moth’s body fluid under a microscopeSony VAIO PCG-51513L battery.

Botrytis bassiana is a fungus that destroys the entire silkworm body. This fungus usually appears when silkworms are raised under cold conditions with high humidity. This disease is not passed on to the eggs from moths, as the infected silkworms cannot survive to the moth stage. This fungus can spread to other insectsSony VAIO PCG-51511L battery.

Grasserie: If grasserie is observed in chawkie stage, then the chawkie larvae must have been infected while hatching or during chawkie rearing. Infected eggs can be disinfected by cleaning their surface prior to hatching. Infections can occur as a result of improper hygiene in the chawkie rearing house. This disease develops faster in early instar rearingSony VAIO PCG-51412L battery.

Pebrine is a disease caused by a parasitic microsporidian, Nosema bombycis Nageli. Diseased larvae show slow growth, an undersized, pale and flaccid body, and poor appetite. Tiny black spots appear on larval integument. Additionally, dead larvae will remain rubbery and do not undergo putrefaction after deathSony VAIO PCG-51411L battery.

Traditional Chinese medicine

Silkworm is the source of the "stiff silkworm", which is made from dried 4th or 5th instar larvae which have died of white muscardine disease (a lethal fungal infection). Its uses are to dispel flatulence, dissolve phlegm and relieve spasmsSony VAIO PCG-51312L battery.

 
A fish is any member of a paraphyletic group of organisms that consist of all gill-bearing aquatic craniate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups. Most fish are ectothermic ("cold-blooded")(Dell 1691P battery), allowing their body temperatures to vary as ambient temperatures change, though some of the large active swimmers like white shark and tuna can hold a higher core temperature. Fish are abundant in most bodies of water. They can be found in nearly all aquatic environments, from high mountain streams (e.g., char and gudgeon) to the abyssal and even hadal depths of the deepest oceans (e.g., gulpers and anglerfish) (Dell 310-6321 battery). At 32,000 species, fish exhibit greater species diversity than any other group of vertebrates.

Fish are an important resource worldwide, especially as food. Commercial and subsistence fishers hunt fish in wild fisheries (see fishing) or farm them in ponds or in cages in the ocean (see aquaculture). They are also caught by recreational fishers, kept as pets, raised by fishkeepers, and exhibited in public aquaria. Fish have had a role in culture through the ages(Dell 312-0068 battery), serving as deities, religious symbols, and as the subjects of art, books and movies.

Because the term "fish" is defined negatively, and excludes the tetrapods (i.e., the amphibians, reptiles, birds and mammals) which descend from within the same ancestry, it is paraphyletic, and is not considered a proper grouping in systematic biology. The traditional term pisces (also ichthyes) is considered a typological, but not a phylogenetic classification(Dell 312-0078 battery).

The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms(Dell 312-0079 battery). Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods.

Diversity of fish

Fish come in many shapes and sizes. This is a sea dragon, a close relative of the seahorse. Their leaf-like appendages enable them to blend in with floating seaweed(Dell 312-0305 battery).

Main article: Diversity of fish

The term "fish" most precisely describes any non-tetrapod craniate (i.e. an animal with a skull and in most cases a backbone) that has gills throughout life and whose limbs, if any, are in the shape of fins.[4] Unlike groupings such as birds or mammals, fish are not a single clade but a paraphyletic collection of taxa, including hagfishes, lampreys, sharks and rays(Dell 312-0326 battery), ray-finned fish, coelacanths, and lungfish.[5][6] Indeed, lungfish and coelacanths are closer relatives of tetrapods (such as mammals, birds, amphibians, etc.) than of other fish such as ray-finned fish or sharks, so the last common ancestor of all fish is also an ancestor to tetrapods. As paraphyletic groups are no longer recognised in modern systematic biology, the use of the term "fish" as a biological group must be avoided(Dell 312-0518 battery).

Many types of aquatic animals commonly referred to as "fish" are not fish in the sense given above; examples include shellfish, cuttlefish, starfish, crayfish and jellyfish. In earlier times, even biologists did not make a distinction – sixteenth century natural historians classified also seals, whales, amphibians, crocodiles, even hippopotamuses, as well as a host of aquatic invertebrates(Dell 312-0566 battery), as fish.[7] However, according the definition above, all mammals, including cetaceans like whales and dolphins, are not fish. In some contexts, especially in aquaculture, the true fish are referred to as finfish (or fin fish) to distinguish them from these other animals.

A typical fish is ectothermic, has a streamlined body for rapid swimming, extracts oxygen from water using gills or uses an accessory breathing organ to breathe atmospheric oxygen(Dell 312-0585 battery), has two sets of paired fins, usually one or two (rarely three) dorsal fins, an anal fin, and a tail fin, has jaws, has skin that is usually covered with scales, and lays eggs.

Each criterion has exceptions. Tuna, swordfish, and some species of sharks show some warm-blooded adaptations—they can heat their bodies significantly above ambient water temperature.[5] Streamlining and swimming performance varies from fish such as tuna, salmon(Dell 312-0831 battery), and jacks that can cover 10–20 body-lengths per second to species such as eels and rays that swim no more than 0.5 body-lengths per second.[5] Many groups of freshwater fish extract oxygen from the air as well as from the water using a variety of different structures. Lungfish have paired lungs similar to those of tetrapods, gouramis have a structure called the labyrinth organ that performs a similar function, while many catfish(Dell BAT30WL battery), such as Corydoras extract oxygen via the intestine or stomach.[8] Body shape and the arrangement of the fins is highly variable, covering such seemingly un-fishlike forms as seahorses, pufferfish, anglerfish, and gulpers. Similarly, the surface of the skin may be naked (as in moray eels), or covered with scales of a variety of different types usually defined as placoid (typical of sharks and rays) (Dell D6400 battery), cosmoid (fossil lungfish and coelacanths), ganoid (various fossil fish but also living gars and bichirs), cycloid, and ctenoid (these last two are found on most bony fish).[9] There are even fish that live mostly on land. Mudskippers feed and interact with one another on mudflats and go underwater to hide in their burrows.[10] The catfish Phreatobius cisternarum lives in underground, phreatic habitats, and a relative lives in waterlogged leaf litter(Dell HF674 battery).

Fish range in size from the huge 16-metre (52 ft) whale shark to the tiny 8-millimetre (0.3 in) stout infantfish.

Fish species diversity is roughly divided equally between marine (oceanic) and freshwater ecosystems. Coral reefs in the Indo-Pacific constitute the center of diversity for marine fishes, whereas continental freshwater fishes are most diverse in large river basins of tropical rainforests, especially the Amazon, Congo, and Mekong basins(Dell N3010 battery). More than 5,600 fish species inhabit Neotropical freshwaters alone, such that Neotropical fishes represent about 10% of all vertebrate species on the Earth.

Taxonomy

Fish are a paraphyletic group: that is, any clade containing all fish also contains the tetrapods, which are not fish. For this reason, groups such as the "Class Pisces" seen in older reference works are no longer used in formal classifications(Dell Inspiron N4010 battery).

Traditional classification divide fish into three extant classes, and with extinct forms sometimes classified within the tree, sometimes as their own classes:

Class Agnatha (jawless fish)

Subclass Cyclostomata (hagfish and lampreys)

Subclass Ostracodermi (armoured jawless fish)

Class Chondrichthyes (cartilaginous fish)

Subclass Elasmobranchii (sharks and rays)

Subclass Holocephali (chimaeras and extinct relatives)

Class Placodermi (armoured fish)

Class Acanthodii ("spiny sharks", sometimes classified under bony fishes)

Class Osteichthyes (bony fish) (Dell INSPIRON 1100 battery)

Subclass Actinopterygii (ray finned fishes)

Subclass Sarcopterygii (fleshy finned fishes, ancestors of tetrapods)

The above scheme is the one most commonly encountered in non-specialist and general works. Many of the above groups are paraphyletic, in that they have given rise to successive groups: Agnathans are ancestral to Chondrichthyes, who again have given rise to Acanthodiians, the ancestors of Osteichthyes. With the arrival of phylogenetic nomenclature(Dell Inspiron 1200 battery), the fishes has been split up into a more detailed scheme, with the following major groups:

Some palaeontologists contend that because Conodonta are chordates, they are primitive fish. For a fuller treatment of this taxonomy, see the vertebrate article.

The position of hagfish in the phylum chordata is not settled. Phylogenetic research in 1998 and 1999 supported the idea that the hagfish and the lampreys form a natural group, the Cyclostomata, that is a sister group of the Gnathostomata. (Dell Inspiron 1420 battery)

The various fish groups account for more than half of vertebrate species. There are almost 28,000 known extant species, of which almost 27,000 are bony fish, with 970 sharks, rays, and chimeras and about 108 hagfish and lampreys.[17] A third of these species fall within the nine largest families; from largest to smallest, these families are Cyprinidae, Gobiidae, Cichlidae, Characidae(Dell Inspiron 1464 battery), Loricariidae, Balitoridae, Serranidae, Labridae, and Scorpaenidae. About 64 families are monotypic, containing only one species. The final total of extant species may grow to exceed 32,500.[18]

Anatomy

Main article: Fish anatomy

The anatomy of Lampanyctodes hectoris

(1) – operculum (gill cover), (2) – lateral line, (3) – dorsal fin, (4) – fat fin, (5) – caudal peduncle, (6) – caudal fin, (7) – anal fin, (8) – photophores, (9) – pelvic fins (paired), (10) – pectoral fins (paired)

Respiration(Dell Inspiron 1564 battery)

Most fish exchange gases using gills on either side of the pharynx. Gills consist of threadlike structures called filaments. Each filament contains a capillary network that provides a large surface area for exchanging oxygen and carbon dioxide. Fish exchange gases by pulling oxygen-rich water through their mouths and pumping it over their gills(Dell Inspiron 1764 battery). In some fish, capillary blood flows in the opposite direction to the water, causing countercurrent exchange. The gills push the oxygen-poor water out through openings in the sides of the pharynx. Some fish, like sharks and lampreys, possess multiple gill openings. However, bony fish have a single gill opening on each side. This opening is hidden beneath a protective bony cover called an operculum(Dell Inspiron 1520 battery).

Juvenile bichirs have external gills, a very primitive feature that they share with larval amphibians.

Fish from multiple groups can live out of the water for extended time periods. Amphibious fish such as the mudskipper can live and move about on land for up to several days, or live in stagnant or otherwise oxygen depleted water(Dell Inspiron 1521 battery). Many such fish can breathe air via a variety of mechanisms. The skin of anguillid eels may absorb oxygen directly. The buccal cavity of the electric eel may breathe air. Catfish of the families Loricariidae, Callichthyidae, and Scoloplacidae absorb air through their digestive tracts.[19] Lungfish, with the exception of the Australian lungfish(Dell inspiron 1525 battery), and bichirs have paired lungs similar to those of tetrapods and must surface to gulp fresh air through the mouth and pass spent air out through the gills. Gar and bowfin have a vascularized swim bladder that functions in the same way. Loaches, trahiras, and many catfish breathe by passing air through the gut. Mudskippers breathe by absorbing oxygen across the skin (similar to frogs) (Dell inspiron 1526 battery). A number of fish have evolved so-called accessory breathing organs that extract oxygen from the air. Labyrinth fish (such as gouramis and bettas) have a labyrinth organ above the gills that performs this function. A few other fish have structures resembling labyrinth organs in form and function, most notably snakeheads, pikeheads, and the Clariidae catfish family(Dell Inspiron 1720 battery).

Breathing air is primarily of use to fish that inhabit shallow, seasonally variable waters where the water's oxygen concentration may seasonally decline. Fish dependent solely on dissolved oxygen, such as perch and cichlids, quickly suffocate, while air-breathers survive for much longer, in some cases in water that is little more than wet mud(Dell Inspiron 2000 battery). At the most extreme, some air-breathing fish are able to survive in damp burrows for weeks without water, entering a state of aestivation (summertime hibernation) until water returns.

Tuna gills inside of the head. The fish head is oriented snout-downwards, with the view looking towards the mouth.

Air breathing fish can be divided into obligate air breathers and facultative air breathers. Obligate air breathers, such as the African lungfish(Dell INSPIRON 2600 battery), must breathe air periodically or they suffocate. Facultative air breathers, such as the catfish Hypostomus plecostomus, only breathe air if they need to and will otherwise rely on their gills for oxygen. Most air breathing fish are facultative air breathers that avoid the energetic cost of rising to the surface and the fitness cost of exposure to surface predators. (Dell INSPIRON 3800 battery)

Circulation

Fish have a closed-loop circulatory system. The heart pumps the blood in a single loop throughout the body. In most fish, the heart consists of four parts, including two chambers and an entrance and exit.[20] The first part is the sinus venosus, a thin-walled sac that collects blood from the fish's veins before allowing it to flow to the second part, the atrium(Dell INSPIRON 4000 battery), which is a large muscular chamber. The atrium serves as a one-way antechamber, sends blood to the third part, ventricle. The ventricle is another thick-walled, muscular chamber and it pumps the blood, first to the fourth part, bulbus arteriosus, a large tube, and then out of the heart. The bulbus arteriosus connects to the aorta, through which blood flows to the gills for oxygenation(Dell Inspiron 5000 battery).

Digestion

Jaws allow fish to eat a wide variety of food, including plants and other organisms. Fish ingest food through the mouth and break it down in the esophagus. In the stomach, food is further digested and, in many fish, processed in finger-shaped pouches called pyloric caeca, which secrete digestive enzymes and absorb nutrients(Dell INSPIRON 500M battery). Organs such as the liver and pancreas add enzymes and various chemicals as the food moves through the digestive tract. The intestine completes the process of digestion and nutrient absorption.

Excretion

As with many aquatic animals, most fish release their nitrogenous wastes as ammonia. Some of the wastes diffuse through the gills. Blood wastes are filtered by the kidneys(Dell INSPIRON 5100 battery).

Saltwater fish tend to lose water because of osmosis. Their kidneys return water to the body. The reverse happens in freshwater fish: they tend to gain water osmotically. Their kidneys produce dilute urine for excretion. Some fish have specially adapted kidneys that vary in function, allowing them to move from freshwater to saltwater(Dell INSPIRON 510M battery).

Scales

Main article: Scale (zoology)#Fish scales

The scales of fish originate from the mesoderm (skin); they may be similar in structure to teeth.

Sensory and nervous system

Dorsal view of the brain of the rainbow trout

Central nervous system

Fish typically have quite small brains relative to body size compared with other vertebrates, typically one-fifteenth the brain mass of a similarly sized bird or mammal.[21] However, some fish have relatively large brains, most notably mormyrids and sharks, which have brains about as massive relative to body weight as birds and marsupials. (Dell INSPIRON 6000 battery)

Fish brains are divided into several regions. At the front are the olfactory lobes, a pair of structures that receive and process signals from the nostrils via the two olfactory nerves.[21] The olfactory lobes are very large in fish that hunt primarily by smell, such as hagfish, sharks, and catfish. Behind the olfactory lobes is the two-lobed telencephalon(Dell INSPIRON 600M battery), the structural equivalent to the cerebrum in higher vertebrates. In fish the telencephalon is concerned mostly with olfaction.[21] Together these structures form the forebrain.

Connecting the forebrain to the midbrain is the diencephalon (in the diagram, this structure is below the optic lobes and consequently not visible). The diencephalon performs functions associated with hormones and homeostasis. (Dell Inspiron 6400 battery) The pineal body lies just above the diencephalon. This structure detects light, maintains circadian rhythms, and controls color changes.[21]

The midbrain or mesencephalon contains the two optic lobes. These are very large in species that hunt by sight, such as rainbow trout and cichlids.[21]

The hindbrain or metencephalon is particularly involved in swimming and balance.[21] The cerebellum is a single-lobed structure that is typically the biggest part of the brain(Dell INSPIRON 7000 battery). Hagfish and lampreys have relatively small cerebellae, while the mormyrid cerebellum is massive and apparently involved in their electrical sense.

The brain stem or myelencephalon is the brain's posterior. As well as controlling some muscles and body organs, in bony fish at least, the brain stem governs respiration and osmoregulation. (Dell INSPIRON 700M battery)

Sense organs

Most fish possess highly developed sense organs. Nearly all daylight fish have color vision that is at least as good as a human's (see vision in fishes). Many fish also have chemoreceptors that are responsible for extraordinary senses of taste and smell. Although they have ears, many fish may not hear very well. Most fish have sensitive receptors that form the lateral line system(Dell Inspiron 710m battery), which detects gentle currents and vibrations, and senses the motion of nearby fish and prey.[23] Some fish, such as catfish and sharks, have organs that detect weak electric currents on the order of millivolt.[24] Other fish, like the South American electric fishes Gymnotiformes, can produce weak electric currents, which they use in navigation and social communication(Dell INSPIRON 8200 battery).

Fish orient themselves using landmarks and may use mental maps based on multiple landmarks or symbols. Fish behavior in mazes reveals that they possess spatial memory and visual discrimination.[25]

Vision

Main article: Vision in fishes

Vision is an important sensory system for most species of fish. Fish eyes are similar to those of terrestrial vertebrates like birds and mammals(Dell INSPIRON 8600 battery), but have a more spherical lens. Their retinas generally have both rod cells and cone cells (for scotopic and photopic vision), and most species have colour vision. Some fish can see ultraviolet and some can see polarized light. Amongst jawless fish, the lamprey has well-developed eyes, while the hagfish has only primitive eyespots.[26] Fish vision shows adaptation to their visual environment(Dell INSPIRON 9100 battery), for example deep sea fishes have eyes suited to the dark environment.

Hearing

Main article: Hearing in fishes

Hearing is an important sensory system for most species of fish. Fish sense sound using their lateral lines and their ears.

Capacity for pain

Further information: Pain in fish

Experiments done by William Tavolga provide evidence that fish have pain and fear responses. For instance, in Tavolga’s experiments, toadfish grunted when electrically shocked and over time they came to grunt at the mere sight of an electrode. (Dell INSPIRON 9200 battery)

In 2003, Scottish scientists at the University of Edinburgh and the Roslin Institute concluded that rainbow trout exhibit behaviors often associated with pain in other animals. Bee venom and acetic acid injected into the lips resulted in fish rocking their bodies and rubbing their lips along the sides and floors of their tanks, which the researchers concluded were attempts to relieve pain(Dell INSPIRON 9300 battery), similar to what mammals would do. Neurons fired in a pattern resembling human neuronal patterns.[30]

Professor James D. Rose of the University of Wyoming claimed the study was flawed since it did not provide proof that fish possess "conscious awareness, particularly a kind of awareness that is meaningfully like ours".[31] Rose argues that since fish brains are so different from human brains(Dell Inspiron 9400 battery), fish are probably not conscious in the manner humans are, so that reactions similar to human reactions to pain instead have other causes. Rose had published a study a year earlier arguing that fish cannot feel pain because their brains lack a neocortex.[32] However, animal behaviorist Temple Grandin argues that fish could still have consciousness without a neocortex because "different species can use different brain structures and systems to handle the same functions." (Dell Inspiron E1505 battery)

Animal welfare advocates raise concerns about the possible suffering of fish caused by angling. Some countries, such as Germany have banned specific types of fishing, and the British RSPCA now formally prosecutes individuals who are cruel to fish.[33]

Muscular system

Main article: Fish locomotion

Swim bladder of a Rudd (Scardinius erythrophthalmus)

Most fish move by alternately contracting paired sets of muscles on either side of the backbone. These contractions form S-shaped curves that move down the body(Dell Inspiron E1705 battery). As each curve reaches the back fin, backward force is applied to the water, and in conjunction with the fins, moves the fish forward. The fish's fins function like an airplane's flaps. Fins also increase the tail's surface area, increasing speed. The streamlined body of the fish decreases the amount of friction from the water. Since body tissue is denser than water, fish must compensate for the difference or they will sink(Dell Inspiron Mini 9 battery). Many bony fish have an internal organ called a swim bladder that adjusts their buoyancy through manipulation of gases.

A 3-tonne (3.0-long-ton; 3.3-short-ton) great white shark off Isla Guadalupe

Homeothermy

Although most fish are exclusively ectothermic, there are exceptions.

Certain species of fish maintain elevated body temperatures. Endothermic teleosts (bony fish) are all in the suborder Scombroidei and include the billfishes, tunas, and one species of "primitive" mackerel (Gasterochisma melampus) (Dell Latitude D400 battery). All sharks in the family Lamnidae – shortfin mako, long fin mako, white, porbeagle, and salmon shark – are endothermic, and evidence suggests the trait exists in family Alopiidae (thresher sharks). The degree of endothermy varies from the billfish, which warm only their eyes and brain, to bluefin tuna and porbeagle sharks who maintain body temperatures elevated in excess of 20 °C above ambient water temperatures. (Dell STUDIO 1450 battery)See also gigantothermy. Endothermy, though metabolically costly, is thought to provide advantages such as increased muscle strength, higher rates of central nervous system processing, and higher rates of digestion.

Reproductive system

Further information: Spawn (biology)

Organs

Organs: 1. Liver, 2. Gas bladder, 3. Roe, 4. Pyloric caeca, 5. Stomach, 6. Intestine

Fish reproductive organs include testes and ovaries. In most species, gonads are paired organs of similar size, which can be partially or totally fused. (Dell Vostro 1400 battery) There may also be a range of secondary organs that increase reproductive fitness.

In terms of spermatogonia distribution, the structure of teleosts testes has two types: in the most common, spermatogonia occur all along the seminiferous tubules, while in Atherinomorph fish they are confined to the distal portion of these structures. Fish can present cystic or semi-cystic spermatogenesis in relation to the release phase of germ cells in cysts to the seminiferous tubules lumen. (Dell Vostro 1500 battery)

Fish ovaries may be of three types: gymnovarian, secondary gymnovarian or cystovarian. In the first type, the oocytes are released directly into the coelomic cavity and then enter the ostium, then through the oviduct and are eliminated. Secondary gymnovarian ovaries shed ova into the coelom from which they go directly into the oviduct(Dell XPS GEN 2 battery). In the third type, the oocytes are conveyed to the exterior through the oviduct.[36] Gymnovaries are the primitive condition found in lungfish, sturgeon, and bowfin. Cystovaries characterize most teleosts, where the ovary lumen has continuity with the oviduct.[35] Secondary gymnovaries are found in salmonids and a few other teleosts(Dell XPS M1210 battery).

Oogonia development in teleosts fish varies according to the group, and the determination of oogenesis dynamics allows the understanding of maturation and fertilization processes. Changes in the nucleus, ooplasm, and the surrounding layers characterize the oocyte maturation process. (Dell XPS M1330 battery)

Postovulatory follicles are structures formed after oocyte release; they do not have endocrine function, present a wide irregular lumen, and are rapidly reabsorbed in a process involving the apoptosis of follicular cells. A degenerative process called follicular atresia reabsorbs vitellogenic oocytes not spawned. This process can also occur, but less frequently, in oocytes in other development stages. (Dell XPS 1340 battery)

Some fish are hermaphrodites, having both testes and ovaries either at different phases in their life cycle or, as in hamlets, have them simultaneously.

Reproductive method

Over 97% of all known fish are oviparous,[37] that is, the eggs develop outside the mother's body. Examples of oviparous fish include salmon, goldfish, cichlids, tuna, and eels. In the majority of these species, fertilisation takes place outside the mother's body, (Dell XPS M1530 battery) with the male and female fish shedding their gametes into the surrounding water. However, a few oviparous fish practice internal fertilization, with the male using some sort of intromittent organ to deliver sperm into the genital opening of the female, most notably the oviparous sharks, such as the horn shark, and oviparous rays, such as skates. In these cases, the male is equipped with a pair of modified pelvic fins known as claspers(Dell XPS M170 battery).

Marine fish can produce high numbers of eggs which are often released into the open water column. The eggs have an average diameter of 1 millimetre (0.039 in).

Egg of chimaera

An example of zooplankton

The newly hatched young of oviparous fish are called larvae. They are usually poorly formed, carry a large yolk sac (for nourishment) and are very different in appearance from juvenile and adult specimens. The larval period in oviparous fish is relatively short (usually only several weeks) (Dell XPS M1710 battery), and larvae rapidly grow and change appearance and structure (a process termed metamorphosis) to become juveniles. During this transition larvae must switch from their yolk sac to feeding on zooplankton prey, a process which depends on typically inadequate zooplankton density, starving many larvae.

In ovoviviparous fish the eggs develop inside the mother's body after internal fertilization but receive little or no nourishment directly from the mother(Dell XPS M1730 battery), depending instead on the yolk. Each embryo develops in its own egg. Familiar examples of ovoviviparous fish include guppies, angel sharks, and coelacanths.

Some species of fish are viviparous. In such species the mother retains the eggs and nourishes the embryos. Typically, viviparous fish have a structure analogous to the placenta seen in mammals connecting the mother's blood supply with that of the embryo. Examples of viviparous fish include the surf-perches(Dell XPS M2010 battery), splitfins, and lemon shark. Some viviparous fish exhibit oophagy, in which the developing embryos eat other eggs produced by the mother. This has been observed primarily among sharks, such as the shortfin mako and porbeagle, but is known for a few bony fish as well, such as the halfbeak Nomorhamphus ebrardtii.[38] Intrauterine cannibalism is an even more unusual mode of vivipary(Dell Latitude E5400 battery), in which the largest embryos eat weaker and smaller siblings. This behavior is also most commonly found among sharks, such as the grey nurse shark, but has also been reported for Nomorhamphus ebrardtii.[38]

Aquarists commonly refer to ovoviviparous and viviparous fish as livebearers.

Immune system

Immune organs vary by type of fish.[39] In the jawless fish (lampreys and hagfish), true lymphoid organs are absent. These fish rely on regions of lymphoid tissue within other organs to produce immune cells(Dell Latitude E5500 battery). For example, erythrocytes, macrophages and plasma cells are produced in the anterior kidney (or pronephros) and some areas of the gut (where granulocytes mature.) They resemble primitive bone marrow in hagfish. Cartilaginous fish (sharks and rays) have a more advanced immune system. They have three specialized organs that are unique to chondrichthyes; the epigonal organs (Dell Latitude E6400 battery) (lymphoid tissue similar to mammalian bone) that surround the gonads, the Leydig's organ within the walls of their esophagus, and a spiral valve in their intestine. These organs house typical immune cells (granulocytes, lymphocytes and plasma cells). They also possess an identifiable thymus and a well-developed spleen (their most important immune organ) where various lymphocytes(Dell Latitude E6500 battery), plasma cells and macrophages develop and are stored. Chondrostean fish (sturgeons, paddlefish and bichirs) possess a major site for the production of granulocytes within a mass that is associated with the meninges (membranes surrounding the central nervous system.) Their heart is frequently covered with tissue that contains lymphocytes, reticular cells and a small number of macrophages(Dell Inspiron Mini 12 battery). The chondrostean kidney is an important hemopoietic organ; where erythrocytes, granulocytes, lymphocytes and macrophages develop.

Like chondrostean fish, the major immune tissues of bony fish (or teleostei) include the kidney (especially the anterior kidney), which houses many different immune cells.[40] In addition, teleost fish possess a thymus, spleen and scattered immune areas within mucosal tissues (Dell XPS M140 battery) (e.g. in the skin, gills, gut and gonads). Much like the mammalian immune system, teleost erythrocytes, neutrophils and granulocytes are believed to reside in the spleen whereas lymphocytes are the major cell type found in the thymus. In 2006, a lymphatic system similar to that in mammals was described in one species of teleost fish, the zebrafish. Although not confirmed as yet(Dell XPS 13 battery), this system presumably will be where naive (unstimulated) T cells accumulate while waiting to encounter an antigen.[43]

Diseases

Main article: Fish diseases and parasites

Like other animals, fish suffer from diseases and parasites. To prevent disease they have a variety of defenses. Non-specific defenses include the skin and scales, as well as the mucus layer secreted by the epidermis that traps and inhibits the growth of microorganisms. If pathogens breach these defenses(Dell XPS 16 battery), fish can develop an inflammatory response that increases blood flow to the infected region and delivers white blood cells that attempt to destroy pathogens. Specific defenses respond to particular pathogens recognised by the fish's body, i.e., an immune response.[44] In recent years, vaccines have become widely used in aquaculture and also with ornamental fish, for example furunculosis vaccines in farmed salmon and koi herpes virus in koi(Dell XPS 1640 battery).

Some species use cleaner fish to remove external parasites. The best known of these are the Bluestreak cleaner wrasses of the genus Labroides found on coral reefs in the Indian and Pacific Oceans. These small fish maintain so-called "cleaning stations" where other fish congregate and perform specific movements to attract the attention of the cleaners. (Dell XPS 1645 battery) Cleaning behaviors have been observed in a number of fish groups, including an interesting case between two cichlids of the same genus, Etroplus maculatus, the cleaner, and the much larger Etroplus suratensis.[48]

Evolution

See also: prehistoric fish

Outdated evolutionary view of continual gradation (animation)

Dunkleosteus was a gigantic, 10 meter (33 feet) long prehistoric fish.

Fish do not represent a monophyletic group, and therefore the "evolution of fish" is not studied as a single event. (Dell XPS 1647 battery)

Proliferation of fish was apparently due to the hinged jaw, because jawless fish left very few descendants.[51] Lampreys may approximate pre-jawed fish. The first jaws are found in Placodermi fossils. It is unclear if the advantage of a hinged jaw is greater biting force, improved respiration, or a combination of factors(Dell Latitude 131L battery).

Fish may have evolved from a creature similar to a coral-like Sea squirt, whose larvae resemble primitive fish in important ways. The first ancestors of fish may have kept the larval form into adulthood (as some sea squirts do today), although perhaps the reverse is the case.

Conservation

The 2006 IUCN Red List names 1,173 fish species that are threatened with extinction.[52] Included are species such as Atlantic cod,[53] Devil's Hole pupfish,[54] coelacanths, (Dell Latitude C400 battery) and great white sharks.[56] Because fish live underwater they are more difficult to study than terrestrial animals and plants, and information about fish populations is often lacking. However, freshwater fish seem particularly threatened because they often live in relatively small water bodies. For example, the Devil's Hole pupfish occupies only a single 3 by 6 metres (10 by 20 ft) pool. (Dell Latitude C500 battery)

Overfishing

A Whale shark, the world's largest fish, is classified as Vulnerable.

Main article: Overfishing

Overfishing is a major threat to edible fish such as cod and tuna.[58][59] Overfishing eventually causes population (known as stock) collapse because the survivors cannot produce enough young to replace those removed. Such commercial extinction does not mean that the species is extinct, merely that it can no longer sustain a fishery(Dell Latitude C510 battery).

One well-studied example of fishery collapse is the Pacific sardine Sadinops sagax caerulues fishery off the California coast. From a 1937 peak of 790,000 long tons (800,000 t) the catch steadily declined to only 24,000 long tons (24,000 t) in 1968, after which the fishery was no longer economically viable. (Dell Latitude C540 battery)

The main tension between fisheries science and the fishing industry is that the two groups have different views on the resiliency of fisheries to intensive fishing. In places such as Scotland, Newfoundland, and Alaska the fishing industry is a major employer, so governments are predisposed to support it. On the other hand, scientists and conservationists push for stringent protection(Dell Latitude C600 battery), warning that many stocks could be wiped out within fifty years.

Habitat destruction

See also: Environmental effects of fishing

A key stress on both freshwater and marine ecosystems is habitat degradation including water pollution, the building of dams, removal of water for use by humans, and the introduction of exotic species.[65] An example of a fish that has become endangered because of habitat change is the pallid sturgeon, a North American freshwater fish that lives in rivers damaged by human activity. (Dell Latitude C610 battery)

Exotic species

Introduction of non-native species has occurred in many habitats. One of the best studied examples is the introduction of Nile perch into Lake Victoria in the 1960s. Nile perch gradually exterminated the lake's 500 endemic cichlid species. Some of them survive now in captive breeding programmes, but others are probably extinct. (Dell Latitude C640 battery) Carp, snakeheads,[68] tilapia, European perch, brown trout, rainbow trout, and sea lampreys are other examples of fish that have caused problems by being introduced into alien environments.

Importance to humans

Avatar of Vishnu as a Matsya

Coat of arms of Narva, Estonia

Saint Benno of Meissen depicted with a fish in hand (Church of Saint Benno in Munich)

Aquarium collecting

Main article: Fishkeeping#Conservation_and_Science

Economic importance

Main articles: Fish as food, Fishing industry, Aquaculture, and Fish farming

Recreation(Dell Latitude C800 battery)

Main articles: Fishkeeping, Recreational fishing, and Angling

Culture

In the Book of Jonah a "great fish" swallowed Jonah the Prophet. Legends of half-human, half-fish mermaids have featured in stories like those of Hans Christian Andersen and movies like Splash (See Merman, Mermaid).

Among the deities said to take the form of a fish are Ika-Roa of the Polynesians, Dagon of various ancient Semitic peoples, the shark-gods of Hawaiʻi and Matsya of the Hindus(Dell Latitude C810 battery). The astrological symbol Pisces is based on a constellation of the same name, but there is also a second fish constellation in the night sky, Piscis Austrinus.

Fish have been used figuratively in many different ways, for example the ichthys used by early Christians to identify themselves, through to the fish as a symbol of fertility among Bengalis.[69]

Fish feature prominently in art and literature(Dell Latitude C840 battery), in movies such as Finding Nemo and books such as The Old Man and the Sea. Large fish, particularly sharks, have frequently been the subject of horror movies and thrillers, most notably the novel Jaws, which spawned a series of films of the same name that in turn inspired similar films or parodies such as Shark Tale, Snakehead Terror, and Piranha(Dell Latitude D410 battery).

Fish riders in a 1920s poster of the Republic of China.

In the semiotic of Ashtamangala (buddhist symbolism) the golden fish (Sanskrit: Matsya), represents the state of fearless suspension in samsara, perceived as the harmless ocean, referred to as 'buddha-eyes' or 'rigpa-sight'. The fish symbolizes the auspiciousness of all living beings in a state of fearlessness without danger of drowning in the Samsaric Ocean of Suffering(Dell Latitude D420 battery), and migrating from teaching to teaching freely and spontaneously just as fish swim.

They have religious significance in Hindu, Jain and Buddhist traditions but also in Christianity who is first signified by the sign of the fish, and especially referring to feeding the multitude in the desert. In the dhamma of Buddha the fish symbolize happiness as they have complete freedom of movement in the water(Dell Latitude D430 battery). They represent fertility and abundance. Often drawn in the form of carp which are regarded in the Orient as sacred on account of their elegant beauty, size and life-span.[3]

The name of the Canadian city of Coquitlam, British Columbia is derived from Kwikwetlem, which is said to be derived from a Coast Salish term meaning "little red fish".[70]

Terminology

Main article: Shoaling and schooling

These goldband fusiliers are schooling because their swimming is synchronised

A random assemblage of fish merely using some localised resource such as food or nesting sites is known simply as an aggregation(Dell Latitude D500 battery). When fish come together in an interactive, social grouping, then they may be forming either a shoal or a school depending on the degree of organisation. A shoal is a loosely organised group where each fish swims and forages independently but is attracted to other members of the group and adjusts its behaviour, such as swimming speed, so that it remains close to the other members of the group(Dell Latitude D505 battery). Schools of fish are much more tightly organised, synchronising their swimming so that all fish move at the same speed and in the same direction. Shoaling and schooling behaviour is believed to provide a variety of advantages.[71]

Examples:

Cichlids congregating at lekking sites form an aggregation.

Many minnows and characins form shoals.

Anchovies, herrings and silversides are classic examples of schooling fish.

While school and shoal have different meanings within biology, they are often treated as synonyms by non-specialists(Dell Latitude D510 battery), with speakers of British English using "shoal" to describe any grouping of fish, while speakers of American English often using "school" just as loosely.

Fish or fishes?

Though often used interchangeably, these words have different

Shrimp are swimming, decapod crustaceans classified in the infraorder Caridea, found widely around the world in both fresh and salt water. Adult shrimp are filter feeding benthic animals living close to the bottom(Dell Latitude D520 battery). They can live in schools and can swim rapidly backwards. Shrimp are an important food source for larger animals from fish to whales. They have a high tolerance to toxins in polluted areas, and may contribute to high toxin levels in their predators. Together with prawns, shrimp are widely caught and farmed for human consumption(Dell Latitude D600 battery).

Taxonomy

A number of more or less unrelated crustaceans share the word "shrimp" in their common name. Examples are the mantis shrimp and the opossum or mysid shrimp, both of which belong to the same class (Malacostraca) as decapods including shrimp, but constitute two different orders within it, the Stomatopoda and the Mysidacea(Dell Latitude D610 battery). Triops longicaudatus and Triops cancriformis are also popular animals in freshwater aquaria, and are often called shrimp, although they belong instead to the Notostraca, a quite unrelated group.

Biological definition

Shrimp (Caridea), such as Pandalus borealis, typically have two pairs of claws, and the second segment of the abdomen overlaps the segments on either side. The abdomen shows a pronounced caridean bend(Dell Latitude D620 battery).

Prawns (Dendrobanchiata), such as Penaeus monodon, typically have three pairs of claws, and even-sized segments on the abdomen. There is no pronounced bend in the abdomen.

The class Malacostraca contains about half of the crustaceans. The members of this class have a primitive body plan that can be described as shrimp-like, consisting of a 5-8-7 body plan. They have a small carapace that encloses the head and the thorax(Dell Latitude D630 battery), and have a muscular abdomen for swimming. They also have a thin exoskeleton to maintain a light weight. These general characteristics are common in all members of the class.

The class can be further divided into the decapods, which are even still divided into the dendrobranchiates (prawns) and the carideans (shrimp and snapping shrimp).[1]

The prawns have sequentially overlapping body segments (segment one covers the segment two, segment two covers segment three, etc.), chelate (claw like) first three leg pairs, and have a very basic larval body type(Dell Latitude D800 battery).

The shrimps also have overlapping segments, however, in a different pattern (segment two overlaps segments one and three), only the first two leg pairs are chelate, and they have a more complex larval form.

Biologists distinguish the true shrimp from the true prawn because of the differences in their gill structures(Dell Latitude D810 battery). The gill structure is lamellar in shrimp but branching in prawns. The easiest practical way to separate true shrimps from true prawns is to examine the second abdominal segment. The second segment of a shrimp overlaps both the first and the third segment, while the second segment of a prawn overlaps only the third segment(Dell Latitude D820 battery).

Commercial and culinary definition

While in biological terms shrimps and prawns belong to different suborders of Decapoda, they are very similar in appearance. In commercial farming and fisheries, the terms "shrimp" and "prawn" are often used interchangeably. However, recent aquaculture literature increasingly uses the term "prawn" only for the freshwater forms of palaemonids and "shrimp" for the marine penaeids. (Dell Latitude D830 battery)

In the United Kingdom, the word “prawn” is more common on menus than “shrimp”; while the opposite is the case in North America. The term “prawn” is also loosely used to describe any large shrimp, especially those that come 15 (or fewer) to the pound (such as “king prawns”, yet sometimes known as “jumbo shrimp”) (Dell Latitude 2100 battery). Australia and some other Commonwealth nations follow this British usage to an even greater extent, using the word “prawn” almost exclusively. When Australian comedian Paul Hogan used the phrase, “I'll slip an extra shrimp on the barbie for you” in an American television advertisement,[5] it was intended to make what he was saying easier for his American audience to understand(Dell Latitude 2110 battery), and was thus a deliberate distortion of what an Australian would typically say.

In Britain very small crustaceans with a brownish shell are called shrimp, and are used to make potted shrimp. They are also used in dishes where they are not the primary ingredient.

Consumption

A fresh catch of brown shrimp, Crangon crangon

As with other seafood, shrimp is high in calcium, iodine and protein but low in food energy. A shrimp-based meal is also a significant source of cholesterol, from 122 mg to 251 mg per 100 g of shrimp, depending on the method of preparation. (Dell Latitude E4300 battery) Shrimp consumption, however, is considered healthy for the circulatory system because the lack of significant levels of saturated fat in shrimp means that the high cholesterol content in shrimp actually improves the ratio of LDL to HDL cholesterol and lowers triglycerides.[7]

Shrimp and other shellfish are among the most common food allergens.[8] The Jewish laws of Kashrut forbid the eating of shrimp. (Dell Vostro 1310 battery) According to the King James version of the Old Testament, it is alright to eat finfish, but shrimp are an abomination and should not be eaten.[10] In Islam, the Shafi'i, Maliki and Hanbali schools allow the eating of shrimp, while the Hanafi school does not allow it in Sunni Islam. Nor does the Shi'ite school (Ja'fari) allow it(Dell Vostro 1320 battery).

Commercial fishing

Main article: Shrimp fishery

Double-rigged shrimp trawler hauling in the nets

Common commercial methods for catching shrimp and prawns include otter trawls, cast nets, seines, shrimp baiting and dip netting. Trawling involves the use of a system of nets. In some parts of the Pacific Northwest, fishing with baited traps is also common.

The following table shows the yearly weight of shrimp and prawns captured globally in millions of tonnes(Dell Vostro 1510 battery):

The highest rates of incidental catch of non-target species is associated with shrimp trawling. In 1997, the FAO documented the estimated bycatch and discard levels from shrimp fisheries around the world. They found discard rates as high as 20 pounds for every pound of shrimp, with a world average of 5.7 pounds for every pound of shrimp. (Dell Vostro 1520 battery)

Trawl nets in general, and shrimp trawls in particular, have been identified as sources of mortality for species of finfish and cetaceans.[13] Bycatch is often discarded dead or dying by the time it is returned to the sea, and may alter the ecological balance in discarded regions.[14] Worldwide, shrimp trawl fisheries generate about 2% of the world’s catch of fish in weight, but result in more than one third of the global bycatch total(Dell Vostro 2510 battery).

Farming

Tanks in a shrimp hatchery

Main articles: Shrimp farm and Freshwater prawn farm

A shrimp farm is an aquaculture business for the cultivation of marine shrimp or prawns for human consumption. Commercial shrimp farming began in the 1970s, and production grew steeply, particularly to match the market demands of the United States, Japan and Western Europe(Dell Vostro 1014 battery). The total global production of farmed shrimp reached more than 1.6 million tonnes in 2003, representing a value of nearly 9 billion U.S. dollars. About 75% of farmed shrimp are produced in Asia, in particular in China, Thailand and in the Philippines (normally shrimp or prawns are caught in lake, river and sea and are not farmed in tanks). The other 25% are produced mainly in Latin America(Dell Inspiron 1410 battery), where Brazil is the largest producer. The largest exporting nation is Thailand. In Southeast Asia, mangroves are continually taken over then discarded after several years, leading to the equivalent of a ton of carbon dioxide emissions per pound of shrimp produced.[15]

Marketing

Main article: Shrimp marketing

Shrimp are marketed and commercialized with several issues in mind. Most shrimp are sold frozen and marketed based on their categorization of presentation, grading, colour, and uniformity. (Dell Vostro 1014N battery)

Preparation

A steamed tail-on shrimp

Wikibooks Cookbook has a recipe/module on

shrimp

Traditional preparation of tiger shrimp curry in Bengali cuisine

Preparing shrimp for consumption usually involves removing the head, shell, tail, and "sand vein".

To de-shell a shrimp, the tail is held while gently removing the shell around the body. The tail can be detached completely at this point, or left attached for presentation purposes.

Removing the "sand vein" (a euphemism for the digestive tract) is referred to as "deveining"(Dell Vostro 1015 battery). The sand vein can be removed by making a shallow cut lengthwise down the outer curve of the shrimp's body, allowing the dark ribbon-like digestive tract to be removed with a pointed utensil. Alternatively, if the tail has been detached, the vein can be pinched at the tail end and pulled out completely with the fingers. On large shrimp, the "blood vein" (a euphemism for the ventral nerve cord) (Dell Inspiron 1088 battery) along the inner curve of the shrimp's body is typically removed as well. The shrimp is then rinsed under cold running water.

Shrimp and prawns are versatile ingredients, and are often used as an accompaniment to fried rice. Common methods of preparation include baking, boiling, frying, and grilling.

Recipes using shrimp form part of the cuisine of many cultures. Strictly speaking, dishes containing scampi should be made from the Norway lobster(Dell Vostro A840 battery), a shrimp-like crustacean more closely related to the lobster than shrimp, but in some places it is quite common for large shrimp to be used instead.

Wet shrimp is commonly used as a flavouring and as a soup base in Asian cuisines while fried shrimp is popular in North America. In Europe, shrimp is very popular, forming a necessary ingredient in Spanish paella de marisco, Italian cacciucco(Dell Vostro A860 battery), Portuguese caldeirada and many other seafood dishes. Shrimp curry is very popular in South Asia and Southeast Asia. Shrimp are also found in Latin and Caribbean dishes such as enchiladas and coconut shrimp. Other recipes include jambalaya, okonomiyaki, poon choi and bagoong. Shrimp are also consumed as salad, by frying, with rice, and as shrimp guvec (a dish baked in a clay pot) in the Western and Southern coasts of Turkey(Dell Inspiron Mini 1012 battery).

Deveining

Deveining is the removal of the gastrointestinal tract of a shrimp, a common part of preparing them for human consumption. The digestive tract is a dark band running from the head to the tail of the animal, where the spine would be if they were vertebrates. In females, the reproductive canal is also in the same area(SONY PCG-5G2L battery).

One must first cut a slit in the shell at the back of the shrimp. Special deveining tools are sometimes used but knives, skewers, and even toothpicks can be used to devein.

Removing the vein is not essential, as it is not poisonous and is mostly tasteless. Deveining does slightly change the flavour and makes it more consistent. Shrimp also sometimes consume small amounts of sand by accident and the vein thus might be gritty(SONY PCG-5G3L battery).

Life cycle

Most shrimp mature and breed only in a marine habitat, although there are a small number of freshwater species. The females lay 50,000 to 1 million eggs, which hatch after some 24 hours into tiny nauplii. These nauplii feed on yolk reserves within their body and then undergo a metamorphosis into zoeae(SONY PCG-F305 battery). This second larval stage feeds in the wild on algae and after a few days metamorphoses again into the third stage to become myses. At this stage the myses already begin to appear like tiny versions of fully developed adults and feed on algae and zooplankton. After another three to four days they metamorphose a final time into postlarvae: young shrimp having all the characteristics of adults(SONY PCG-5J1L battery). The whole process takes about 12 days from hatching. In the wild, the marine postlarvae then migrate into estuaries, which are rich in nutrients and low in salinity. There they grow and eventually migrate back into open waters when they mature. Most adult shrimp are benthopelagic, living primarily near the sea floor(SONY PCG-5J2L battery).

Common shrimp species include pink, brown and snapping shrimp. Depending on the species and location, they grow from about 1.2 to 30 centimetres (0.47 to 12 in) long, and live between one and 6.5 years.

Fossil record

The fossil record of shrimp is sparse, with only 57 exclusively fossil species known.[3] The earliest of these cannot be assigned to any family, but date from the Lower Jurassic and Cretaceous. (SONY PCG-5K2L battery)

Home aquaria

Lysmata debelius, a popular aquarium shrimp

Several types of shrimp are kept in home aquaria. Some are purely ornamental, while others are useful in controlling algae and removing debris.[23] Freshwater shrimp commonly available for aquaria include the Bamboo shrimp, Japanese marsh shrimp (Caridina multidentata, also called "Amano shrimp," as their use in aquaria was pioneered by Takashi Amano) (SONY PCG-5L1L battery), cherry shrimp (Neocaridina heteropoda), and ghost or glass shrimp (Palaemonetes spp.). Popular saltwater shrimp include the cleaner shrimp Lysmata amboinensis, the fire shrimp (Lysmata debelius) and the harlequin shrimp (Hymenocera picta).

Etymology

The term shrimp originated around the 14th century with the Middle English shrimpe, akin to the Middle Low German schrempen, and meaning to contract or wrinkle; and the Old Norse skorpna, meaning to shrivel up(SONY PCG-6S2L battery).