Amazonia, American Trail, Asia Trail, Bird House, Giant Panda Habitat, Great Ape House, Kids' Farm, Reptile Discovery Center, Small Mammal House, Think Tank
The National Zoological Park, commonly known as the National Zoo, is one of the oldest zoos in the United States. The zoo is part of the Smithsonian Institution and does not charge admission. Founded in 1889, its mission is to "provide engaging experiences with animals and create and share knowledge to save wildlife and habitats".[6]
The National Zoo has two campuses. The first is a 163-acre (66 ha) urban park located at Rock Creek Park in the Woodley Park neighborhood of NorthwestWashington, D.C., 20 minutes from the National Mall by MetroRail.[7] The other campus is the 3,200-acre (1,300 ha) Smithsonian Conservation Biology Institute (SCBI; formerly known as the Conservation and Research Center) in Front Royal, Virginia. On this land, there are 180 species of trees, 850 species of woody shrubs and herbaceous plants, 40 species of grasses, and 36 different species of bamboo.[8] The SCBI is a non-public facility devoted to training wildlife professionals in conservation biology and to propagating rare species through natural means and assisted reproduction. The National Zoo is accredited by the Association of Zoos and Aquariums (AZA).
The two facilities host about 2,700 animals of 390 different species.[9] About one-fifth of them are endangered or threatened. Most species are on exhibit at the Rock Creek Park campus.[10] The zoo is home to birds, great apes, big cats, Asian elephants, insects, amphibians, reptiles, aquatic animals, small mammals and many more, but the best-known residents were giant pandas. The SCBI facility houses between 30 and 40 endangered species at any given time depending on research needs and recommendations from the zoo and the conservation community.[3] The zoo was one of the first to establish a scientific research program.[8] Because it is a part of the Smithsonian Institution, the National Zoo receives federal appropriations for operating expenses. A new master plan for the park was introduced in 2008 to upgrade the park's exhibits and layout.
The National Zoo is open every day of the year except for December 25 (Christmas Day), though it was closed for a long period during the COVID-19 pandemic.[11] The zoo reopened following this on May 21, 2021.
History
View at the National Zoo, Washington, D.C., 1909
The zoo first started as the National Museum's Department of Living Animals in 1886.[12] By an act of Congress on March 2, 1889,[13][14][15] for "the advancement of science and the instruction and recreation of the people", the National Zoo was created. In 1890, it became a part of the Smithsonian Institution. Three well-known individuals drew up plans for the zoo: Samuel Langley, third Secretary of the Smithsonian; William Temple Hornaday, noted conservationist and head of the Smithsonian's vertebrate division; and Frederick Law Olmsted, the premier landscape architect of his day. William T. Hornaday was the park's first director and curator of all 185 animals when the park was first opened and took office on May 6, 1889.[12][16] Together, they designed a new zoo to exhibit animals for the public and to serve as a refuge for wildlife, such as bison and beaver, which were rapidly vanishing from North America.[17]
Elephant fed by a zoo attendant through the bars of a fence at the National Zoo in Washington, D.C., c. 1915
For the first 50 years, the National Zoo, like most zoos around the world, focused on exhibiting one or two representative exotic animal species. The number of many species in the wild began to decline drastically because of human activities. In 1899, the Kansas frontiersman Charles "Buffalo" Jones captured a bighorn sheep for the zoo.[18] The fate of animals and plants became a pressing concern. Many of these species were favorite zoo animals, such as elephants and tigers; hence the staff began to concentrate on the long-term management and conservation of entire species.[17]
Several exotic animals were donated by former US presidents; often they were acquired as gifts from foreign dignitaries. Notable among them are Billy the pygmy hippopotamus who is the common ancestor to almost all pygmy hippos in American zoos[19] and Rebecca the raccoon, one of many exotic presidential pets of Calvin Coolidge and First Lady Grace.
In the mid-1950s, the zoo hired its first full-time permanent veterinarian, reflecting a priority placed on professional health care for the animals. In 1958, Friends of the National Zoo (FONZ) was founded. The citizen group's first accomplishment was to persuade Congress to fund the zoo's budget entirely through the Smithsonian; previously, the zoo's budget was divided between appropriations for the Smithsonian and the District of Columbia. Congressional funding placed the zoo on a firmer financial base, allowing for a period of growth and improvement. In 2006, Congress approved an additional $14.6 million for renovations in both facilities.[8] FONZ incorporated as a nonprofit organization and turned its attention to developing education and volunteer programs, supporting these efforts from its operation of concessions at the zoo, and expanding community support for the zoo through a growing membership[17] which annually raises between $4 million and $8 million for the zoo.[8]
In the early 1960s, the zoo turned its attention to breeding and studying threatened and endangered species. Although some zoo animals had been breeding and raising young, it was not understood why some species did so successfully while others did not. In 1965, the zoo created the zoological research division to study the reproduction, behavior, and ecology of zoo species, and to learn how best to meet the needs of the animals.[17]
The Ivy A. Pelzman Memorial Glockenspiel, constructed by the Petit & Fritsen bell foundry, is a 38-foot-tall clock tower standing at the zoo's southeastern entrance consisting of a carillon of 35 bells, four moving figurines of animals, and a 4-faced clock that was dedicated on May 16, 1976. It was designed and donated by the late Dr. Ivy A. Pelzman (1890-1970) as a memorial in honor of his wife Kathrine. The glockenspiel's steam-engine powered rotating display of animals malfunctioned a few years after the glockenspiel's installation due to the steam engine becoming Inoperable. A few years later, the glockenspiel was relocated on the zoo grounds from Connecticut Avenue entrance to the southeastern entrance. The glockenspiel's bells became inoperable in 2003 due to a mechanical malfunction with the carillon keyboard console. The Smithsonian lists the glockenspiel as an "attractive, but dysfunctional gift," and it requires expensive funds for restoration and maintenance.
Tours and classes at the zoo, 1979
In 1975, the zoo established the Conservation and Research Center (CRC). In 2010, the complex was renamed the Smithsonian Conservation Biology Institute (SCBI), a title also used as an umbrella term for the scientific endeavors that take place on both campuses. On 3,200 acres (13 km2) in the Virginia countryside, rare species, such as Mongolian wild horses, scimitar-horned oryx, maned wolves, cranes, and others live and breed in spacious surroundings. SCBI's modern efforts emphasize reproductive physiology, analysis of habitat and species relationships, genetics, husbandry and the training of conservation scientists.[17]
During the COVID-19 pandemic during 2020–21, the zoo was closed for several months as a precautionary effort.[11]
Modern status
A waterfall in the zoo.Two orangutans crossing over visitors via the "O Line"
Expanding knowledge about the needs of zoo animals and commitment to their well-being has changed the look of the National Zoo. Today, animals live in natural groupings rather than individually. Rare and endangered species, such as golden lion tamarins, Sumatran tigers, and sarus cranes, breed and raise their young – showing the success of the zoo's conservation and research programs.[17] The zoo's research team studies animals both in the wild and at the zoo. Its research encompasses reproductive biology, conservation biology, biodiversity monitoring, veterinary medicine, nutrition, behavior, ecology, and bird migration.[8]
The National Zoo has developed public-education programs to help students, teachers and families explore the intricacies of the animal world. The zoo also designed specialized programs to train wildlife professionals from around the world and to form a network to provide crucial support for international conservation. The National Zoo is at the forefront of the use of web technology and programming to expand its programs to an international virtual audience.[17]
Plans for the future include modernizing the zoo's aging facilities and expanding its education, research and conservation efforts in Washington, Virginia and in the wild. As part of a 10-year renewal program, Asia Trail – a series of habitats for seven Asian species including sloth bears, red pandas, and clouded leopards – was created. Kids' Farm exhibit, opened in 2004, was slated for closure in 2011 but is to remain open for another 10 years following a donation to the exhibit.[17][23] Elephant Trails, opened in 2013, provides a new home for the zoo's Asian elephants.
The zoo, which is supported by tax revenues and open to everyone, attracts 2 million visitors per year, according to The Washington Post in 2005.[24]
The National Zoo has a Federal Law Enforcement Agency deployed on its grounds: the National Zoological Park Police (NZPP), which consists of full-time Law Enforcement Officers. The NZPP is an agency that has been recognized by the United States Congress and is one of five original police agencies within the District of Columbia with full police powers. They work very closely with the Metropolitan Police Department, the United States Park Police, Department of State, Capital Police, Federal Bureau of Investigation, and the Department of Defense. The agency is considered the first line of defense in the event of any crisis.[25]
Dennis W. Kelly was named director of the zoo on February 15, 2010, overseeing both campuses. Kelly succeeded John Berry, who was the National Zoo director for three years until February 2009, when he resigned to become the director of the U.S. Office of Personnel Management under the Obama Administration. Steven Monfort, the zoo's associate director for conservation and science, served as the acting director between February 2009 and February 2010. Kelly retired as the zoo's director in November 2017, and Steven Monfort was named acting director.[26] In November, 2021, Brandie Smith was appointed director. Smith is the second woman to serve as director in the zoo's 132-year history.[27]
National Zoological Park Police
The National Zoo maintains its own Police Department, which consists of 50 full-time and part-time officers
US National Zoological Park Police officers are specifically assigned to the National Zoo and the Smithsonian Conservation Biology Institute in Front Royal, Virginia. The National Zoological Park Police is one of the oldest police forces in the District of Columbia. According to the official National Zoo Website, the Zoological Police was one of the original five police agencies in D.C. created in 1889. The 163-acre (0.66 km2) National Zoo is a Smithsonian facility in the District of Columbia and is staffed 24 hours a day by full-time US National Zoological Park police officers.
The National Zoo also maintains a 3,200-acre Research facility (Smithsonian Conservation Biology Institute; SCBI) in Front Royal, Virginia; which is staffed by members of the National Zoological Park Police. NZPP officers are Federal law enforcement officers and carry full law enforcement jurisdiction within the District of Columbia and Virginia that work closely with the Metropolitan Police Department and the US Park Police, as well as other federal law enforcement agencies to include Virginia law enforcement authorities.[28]
The zoo's state-of-the-art giant panda habitat features three outdoor areas with animal enrichment, as well as an indoor area with a rocky outcrop, a waterfall, and viewing areas. The exhibit is designed to replicate the rocky, lush terrain of the pandas' natural habitat.[8] The habitat is currently vacant after the zoo's pandas, Mei Xiang, Tian Tian, and their cub Xiao Qi Ji, left for China in November 2023.[30][31] They are the focus of a research, conservation, and breeding program that aims to preserve the species.
Mei Xiang and Tian Tian, who were on loan from the China Wildlife Conservation Association, have successfully had four surviving cubs together, all by artificial insemination. The first was a male cub, named Tai Shan in 2005. Tai Shan currently lives at the Bifengxia Panda Base in Sichuan, China, taking part in Bifengxia's breeding program. On September 16, 2012, Mei Xiang gave birth to another cub, but the cub died six days after its birth. On August 23, 2013, Mei Xiang gave birth to two cubs; one, a female named Bao Bao, survived, while the other was stillborn.[32] Mei delivered two cubs in August 2015; one died a few days later.[33] The surviving male was given the name Bei Bei on September 25, 2015, and was on public exhibit in January 2016. Bei Bei traveled to China in November 2019. On August 21, 2020, at 6:35, Mei Xiang gave birth to a single male cub, and became the oldest giant panda to give birth in the US at 22 years old. On November 23, he was named Xiao Qi Ji by popular vote which translates to "Little Miracle" in English.
Elephant Trails
Asian elephant at the National Zoo
In spring 2008, the National Zoo began construction on Elephant Trails, a new home for its Asian elephants. The first part of the $52 million project opened in September 2010, expanding the zoo's former elephant area with a 5,700-square-foot (530 m2) barn, two new yards (one with a pool), and a quarter-mile (400 m) walkway through woods,[34] a total of 1.9 acres (0.77 ha) of outdoor space, bringing the total size of Elephant Trails to 2 acres (0.81 ha).[35] Elephant Trails: A Campaign to Save Asian Elephants is a comprehensive breeding, education, and scientific research program. It is designed to help scientists care for elephants in zoos and save them in the wild. The Elephant House (built in 1937) was closed to the public from September 14, 2009, until late March 2013 for construction of the second phase of Elephant Trails. This includes the Elephant Community Center, an indoor exhibit with many interpretive signs and graphics.[36] The seven Asian elephants that live in Elephant Trails are one bull named Spike and six cows named Bozie, Kamala, Swarna, Maharani, Trong Nhi, and Nhi Linh.
The exhibit also features a cafe called Seal Rock Cafe, which offers dishes crafted from local, seasonal, and sustainable ingredients. Menu items include Best Aquaculture Practices (BAP) certified shrimp and Marine Stewardship Council (MSC) certified fish.[40]
Great Ape House
Gorillas at the National Zoo
The Great Ape House opened in 1981 and is separated into two sets of enclosures. One houses six western lowland gorillas (two males named Baraka Ya Mwelu and Moke; three females named Calaya, Mandara and Kibibi; and a female infant named Zahra, born in 2023). The other houses seven orangutans (three males named Kyle, Kiko and Redd; and four females named Batang, Lucy, Iris and Bonnie). The orangutans are allowed access to the Think Tank (see below) by traveling along the "O-Line", a series of high cables supported by metal towers that enable the orangutans to move between the two buildings. Kyle, Batang and Redd are Bornean orangutans while Kiko, Lucy, Iris and Bonnie are all hybrid orangutans.
Think Tank
The Think Tank is an area designed to educate visitors about how animals think and learn about their surroundings. Think Tank was opened in 1995 and features several interactive displays that teach visitors how zoologists conduct their studies. The zoo's orangutans (which are sometimes used in keeper demonstrations) are allowed to move from the Great Ape House to Think Tank, and the building includes suitable enclosures for the apes should they choose to stay there. Other animals kept and studied in the Think Tank include land hermit crabs, brown rats and Allen's swamp monkeys.
Gibbon Ridge
Gibbon Ridge is an enclosure housing four siamangs (two males named Bradley and Guntur and two females named Ronnie and Adinda).
Great Cats
Video of lions in a heated cave at the zoo.
Great Cats opened in May 1976 and is separated into three enclosures with a moat. The zoo rotates four lions (two males named Shaka and Jumbe as well as two lionesses named Shera and Amahle) and three tigers (a Sumatran tigress named Damai and two Siberian tigers, a male named Metis and a female named Nikita) between the three exhibits.
The Kids' Farm opened in 2004 and is aimed primarily at children and housing domesticated livestock. Animals kept in the Kids' Farm include alpacas, hens, miniature Mediterranean donkeys, Hereford and Holstein cows, Kunekune pigs and Nigerian Dwarf goats. The exhibit also has a small pond with koi and channel catfish. In 2011, the zoo announced plans to close The Kids' Farm due to budgetary constraints. However, a $1.4 million donation from State Farm Insurance allowed the exhibit to remain open.[46]
The zoo opened a new American bison exhibit on August 30, 2014, as part of their 125th-anniversary celebration. The exhibit features two female bison, named Lucy and Gally, that were transported to the zoo in 2020 from the American Prairie in northeastern Montana.[47]
Smokey Bear playing in his pool, sometime in the 1950s
One of the most famous animals to have spent much of his life at the zoo was Smokey Bear, the "living symbol" of the cartoon icon created as part of a campaign to prevent forest fires. A black bear cub rescued from a fire, he lived at the zoo from 1950 until his death in 1976. During his time at the zoo, he had millions of visitors and an abundance of personal mail addressed to him – up to 13,000 letters a week – such that the U.S. Post Office designated a special zip code for correspondence addressed to him.[49]
During his time at the zoo, he was "married" to Goldie Bear, with the hope that one of his offspring would continue to hold the title of Smokey Bear. When the pair produced no offspring, an orphaned bear cub was added to their cage. It was named "Little Smokey", with the announcement that the bear couple had "adopted" the new cub. In 1975, an official ceremony was held to recognize the retirement of Smokey Bear and the new title of "Smokey Bear II" for Little Smokey.[49] Upon the death of the original Smokey Bear, The Washington Post printed an obituary, recognizing him as a "New Mexico native" who had resided in Washington, D.C., for many years, working for the government.[50]
Ham was the first great ape ever launched into space in 1961. The chimp would later retire to the National Zoo in 1963 where he would spend 17 years until he was transferred to the North Carolina Zoo for the remaining years of his life.
Giant pandas
Tai Shan at the National ZooVideo of Mei Xiang (adult female) and Bei Bei (male cub)
From 1972 to 2023, one of the zoo's exhibits featured pandas.
During President Richard Nixon's historic 1972 visit to China, the Chinese government donated two giant pandas, Ling-Ling (female) and Hsing-Hsing (male), to the official United States delegation. First Lady Pat Nixon donated the pandas to the zoo, where she welcomed them in an April 1972 ceremony. The first giant pandas in America, Ling-Ling and Hsing-Hsing were among the most popular animals at the zoo.[51] Ling-Ling died in 1992 and Hsing-Hsing in 1999. Although Ling-Ling and Hsing-Hsing had five cubs between 1983 and 1989, all died as infants.[52]
A new pair of pandas, female Mei Xiang ("Beautiful Fragrance") and male Tian Tian ("More and More"), arrived on loan from the Chinese government in late 2000.[53] The zoo paid an estimated 10 million dollars for the 10-year loan. On July 9, 2005, a male panda cub was born at the zoo. It was the first surviving panda birth at the zoo and the product of artificial insemination by the zoo's reproductive research team. The cub was named Tai Shan ("Peaceful Mountain") on October 17, 100 days after his birth; the panda went without a name for its first hundred days, in observance of a Chinese custom. Tai Shan is property of the Chinese government and was scheduled to be sent to China after his second birthday, although that deadline was extended in 2007 by two years. Tai Shan left Washington, D.C., on February 4, 2010, and was taken to the Ya'an Bifengxia Panda Base, part of the Wolong nature reserve's panda conservation center.
On September 16, 2012, Mei Xiang gave birth to another cub, believed by zoo officials to have been a female, which died after about a week. Initial results from a necropsy (animal autopsy) revealed the abnormal presence of fluid in the abdomen and also discoloration of the liver (hepatic) tissue of unknown etiology; the cub had managed to nurse before death because milk was found in its system. Zoo officials said that, while upsetting, they (and, by extension, the public) can hope to learn more about giant panda breeding, reproduction, and health as a result, and will work closely and cooperatively with their Chinese colleagues during the inquiry.[54]
In January 2011, Dennis Kelly, director of the National Zoo, and Zang Chunlin, secretary general of the China Wildlife Conservation Association, signed a new Giant Panda Cooperative Research and Breeding Agreement, extending the zoo's giant panda program for five more years, further cementing the two countries' commitment to the conservation of the species. The agreement, effective through December 5, 2015, stipulates that the zoo will conduct research in the areas of breeding and cub behavior. A new agreement was put in place December 7, 2015, and was in effect until December 7, 2020.[55] In December 2020, the deal got extended until 2023.[56]
Mei Xiang gave birth in August 2015 to two live cubs; the smaller one died a few days later (keepers had to care for it after Mei decided to focus on the larger cub). Sperm from both Tian Tian and another male giant panda based in a China preserve was used. It was determined on August 28, 2015,[57] that both cubs were male and sired by Tian Tian. The larger, surviving cub was named Bei Bei[58] ("precious treasure") on September 25, 2015. In celebration of a state visit, the name was selected by First Lady of the United States, Michelle Obama, and First Lady of the People's Republic of China, Peng Liyuan.
Bao Bao was healthy at that time, eating bamboo and special fruitsicle treats, having been separated from Mei at 18 months of age. She celebrated her second birthday in August 2015, shortly after the cubs were born. Her contract extended to August 2017. Bao Bao left the National Zoo on February 22, 2017, for the Dujiangyan base of the China Panda Conservation and Research Center.[59]
In March 2020 shortly after the National Zoo closed due to the COVID-19 pandemic, Mei Xiang was artificially inseminated using only frozen sperm to avoid too much close contact.[60] In August 2020, the National Zoo announced that Mei Xiang was pregnant. A few days after announcing that they had detected fetal tissue, the zoo tweeted a short video of an ultrasound showing a panda fetus. On August 21, Mei Xiang gave birth to a live male cub named Xiao Qi Ji, making her the oldest panda in the United States to give birth, at 22 years old.[61][62][63] This meant the first success for this type of procedure.[60]
The zoo holds annual fund raisers (ZooFari, Guppy Gala, and Boo at the Zoo) and free events (Sunset Serenades, Fiesta Musical). Proceeds support animal care, conservation science, education and sustainability at the National Zoo.[65][66]
Woo at the Zoo – A Valentine's Day (February 14) talk by some of the zoo's animal experts discussing animal dating, mating, and reproductive habits. All proceeds benefit the zoo's animal care program.
Earth Day: Party for the Planet – Celebrating Earth Day at the National Zoo. Guests can learn simple daily actions they can take to enjoy a more environmentally friendly lifestyle.
Easter Monday – Easter Monday has been a Washington-area multicultural tradition for many years. There is a variety of family activities, entertainment and special opportunities to learn more about the animals. Admission is free, and this event traditionally welcomes thousands of area families. The celebration began in response to the inability of African Americans to participate in the annual Easter Egg Roll held at the White House, until the Dwight Eisenhower presidency.
Zoofari – A casual evening of gourmet foods, fine wines, entertainment and dancing under the stars. Each year, thousands of attendees enjoy delicacies prepared by master chefs from 100 of the D.C. area's finest restaurants. All proceeds benefit the zoo's animal care program.[clarification needed]
Brew at the Zoo – Guests can sample beer from a variety of microbreweries at the zoo. All proceeds benefit the zoo's animal care program.
ZooFiesta – The zoo celebrates Hispanic Heritage Month with an annual fiesta at the National Zoo. Animal demonstrations, Hispanic and Latino music, costumed dancers, traditional crafts and Latin American foods are offered.
Zoolights event at the National Zoological Park in Washington, D.C.
Rock-N-Roar – An event featuring live music, food and drink, and viewings of lion and tiger enrichment.[clarification needed]
Autumn Conservation Festival at Smithsonian Conservation Biology Institute (SCBI) – Visitors can talk with scientists one-on-one and learn about their research, and the tools and technology they use to understand animals and their environments. Guests can get behind-the-scenes looks at some of the SCBI's endangered animals.
Boo at the Zoo – Families with children ages 2 to 12 trick-or-treat at the zoo and receive special treats from more than 40 treat stations. There are animal encounters, keeper talks and festive decorations. All proceeds benefit the zoo's animal care program.
Zoolights – The National Zoo's annual winter celebration. Guests can walk through the zoo when it is covered with thousands of sparkling environmentally-friendly lights and animated exhibits, attend special keeper talks and enjoy live entertainment.
Friends of the National Zoo
Friends of the National Zoo (FONZ) was a non-profit organization working in partnership with the National Zoological Park providing support to wildlife conservation programs at the zoo and around the world since 1958. Starting with Park Operations (guest services, retail and more), Education/Volunteer Services, as well as Membership Services, every area of FONZ works to raise money for the zoo, with $5 Zoo Guidebooks, rentals, souvenir purchases and memberships, with each being a tax write off. FONZ memberships offer free parking, discounts at the zoo's stores and restaurants, ride tickets, and a subscription to the Wild.Life., a magazine with the latest zoo news, research and photos.[67][68]
FONZ has 60,000 members including about 30,000 families, largely in the Washington metropolitan area, and more than 1,000 volunteers. FONZ also offers weekend birthdays to members and seasonal day-camps through Education/Volunteer services, and a residential nature camp is offered at SCBI in Front Royal.[67]
On February 4, 2021, the National Zoo announced that it was ending its 63-year partnership with FONZ.[69] After the partnership ended, FONZ was relaunched as Conservation Nation, which is smaller and remotely-operated. [70]
Kim Terrell (SCBI), Andy Loudon and Dr. Reid Harris (James Madison University) investigate the role of skin microbes and immune function under different climate scenarios
The Smithsonian established its Conservation Biology Institute (SCBI) in 2010 to serve as an umbrella for its global effort to conserve species and train future generations of conservationists. Headquartered in Front Royal, Virginia, the facility was previously known as the National Zoo's Conservation and Research Center.[71]
The SCBI facilitates and promotes research programs based at Front Royal, at the National Zoo in Washington and at field research and training sites around the world. Its efforts support one of the four main goals of the Smithsonian's new strategic plan, which advances "understanding and sustaining a biodiverse planet."[71]
Conservation biology is a field of science based on the premise that the conservation of biological diversity is important and benefits current and future human societies.[71]
Conservation Ecology Center (CEC): focuses on recovering and sustaining at-risk wildlife species and their supporting ecosystems in key marine and terrestrial regions throughout the globe.
Migratory Bird Center: studies neotropical songbirds and wetland birds, the role of disease in bird population declines, and the environmental challenges facing urban and suburban birds. They also train professionals in environmental coffee certification throughout Latin America.
Center for Species Survival (CSS): researches issues in reproductive physiology, endocrinology, cryobiology, embryo biology, animal behavior, wildlife toxicology and assisted reproduction. They strive to create knowledge that ensures self-sustaining populations in zoos and in the wild.
Center for Conservation and Evolutionary Genetics (CCEG): works to understand and conserve biodiversity through genetic research, specializing in the genetic management of wild and captive animal populations, non-invasive and ancient DNA analyses, systematics, disease diagnosis and dynamics, genetic services to the zoo community, and application of genetic methods to animal behavior and ecology.
Center for Conservation Education and Sustainability (CBES): teaches conservation principles and practices, finding ways to help scientists, managers, companies and industries become more environmentally responsible.
Center for Wildlife Health and Husbandry Sciences: provides for the mental and physical well-being of every animal at the zoo through the complex endeavor of animal care.
Incidents
In March 1995, a homeless and mentally ill mother of three, Margaret Davis King, climbed into the lion's protected habitat and was discovered mauled to death early one Saturday morning.[72][73]
In 2002, the zoo's head veterinarian at the time, Dr. Suzan Murray, was accused of altering medical records.[74] Murray responded that the software used "was not designed as a legal document, but rather as a user-friendly way of maintaining and sharing important information."[75] The American Veterinary Medical Association (AVMA) specifically states "Without the express permission of the practice owner, it is unethical for a veterinarian to remove, copy, or use the medical records or any part of any record."[76]
In January 2003, red pandas died after eating rat poison that had been buried in their yard by a pest control contractor. The incident led the city of Washington, D.C., to seek to fine the zoo over its claim of federally granted immunity.[77]
In July 2003, a predator entered an exhibit and killed a bald eagle.[78] Zoo officials later stated that the animal was likely killed by a red fox.[79]
In 2005, a three-year-old Sulawesi macaque named Ripley died in the Think Tank exhibit when two keepers closed a hydraulic door without realizing the monkey was in the doorway.[80]
In January 2005, the National Academy of Sciences released its final report on a two-year investigation into animal care and management at the National Zoo. The committee found that most animals were well cared-for, and there was little to question regarding large mammal deaths from 1999 to 2003. Their evaluation suggested "that the publicized animal deaths were not indicative of a wider, undiscovered problem with animal care".[81] The problems at the zoo, which culminated with Director Lucy Spelman's resignation, included facility and budget shortcomings, although the animal care problems were prominently highlighted. The zoo added a new head pathologist and other veterinarians.[82]
In January 2006, the National Zoo euthanized an Asian elephant named Toni. The elephant had been suffering from arthritis and poor body conditions. Animal rights groups alleged that inadequate care led to her death.[83]
In December 2006, a clouded leopard escaped from its exhibit at the Asia Trail due to faulty fencing. It was recaptured.[83]
During the night of May 3, 2022, a wild red fox from Rock Creek Park entered an enclosure through a baseball-sized hole and killed 25 flamingos and a Northern pintail duck, and injured 3 other flamingos.[84]
^(1) Goode, James M. (1974). The Outdoor Sculpture of Washington, D.C.: A Comprehensive Historical Guide. Washington, D.C.: Smithsonian Institution Press. p. 260. ISBN9780881032338. OCLC2610663. Retrieved July 4, 2016. This 25-foot long replica of a Triceratops ... was placed on the Mall in 1967. ... The full-size Triceratops replica and eight other types of dinosaurs were designed by two prominent paleontologists, Dr. Barnum Brown of the American Museum of Natural History, in New York City, and Dr. John Ostrom of the Peabody Museum, in Peabody, Massachusetts. The sculptor, Louis Paul Jonas, executed these prehistoric animals in fiberglass, after the designs of Barnum and Ostrom, for the Sinclair Refining Company's Pavilion at the New York World's Fair of 1964. After the Fair closed, the nine dinosaurs, which weighed between 2 and 4 tons each, were placed on trucks and taken on a tour of the eastern United States. The Sinclair Refining Company promoted the tour for public relations and advertising purposes, since their trademark was the dinosaur. In 1967, the nine dinosaurs were given to various American museums. This particular replica was used for the filming of The Enormous Egg, a movie made by the National Broadcasting Company for television, based on a children's book of the same name by Oliver Butterworth. The movie features an enormous egg, out of which hatches a baby Tricerotops ; the boy consults with the Smithsonian Institution which accepts Uncle Beasley for the National Zoo. (2) "A Dinosaur at the Zoo". Art at the National Zoo. Washington, D.C.: Smithsonian National Zoological Park. Archived from the original on June 12, 2007. Retrieved July 1, 2016.
^"Small Mammal House". Smithsonian's National Zoo. April 15, 2016. Retrieved July 10, 2018.
^"American Trail". Smithsonian's National Zoo. April 20, 2016. Retrieved July 10, 2018.
^"Meet the Animals". Smithsonian's National Zoo. August 25, 2016. Retrieved July 10, 2018.
^ abBennicoff, Tad (May 27, 2010). "Bearly Survived to become an Icon". blog.photography.si.edu. Smithsonian Institution Archives. Retrieved May 26, 2012.
^Byron, Jimmy (February 1, 2011). "Pat Nixon and Panda Diplomacy". nixonfoundation.org. Richard Nixon Foundation. Archived from the original on March 6, 2012. Retrieved May 26, 2012.
^Committee on the Review of the Smithsonian (January 2005). Animal Care and Management at the National Zoo: Final Report(PDF). National Academies Press. ISBN0-309-09583-2. Archived from the original(PDF) on May 16, 2005. Retrieved July 12, 2017. In total, the committee evaluated 74% of all megavertebrate deaths that occurred at the National Zoo from 1999 to 2003. The committee concluded that in a majority of cases, the animal received appropriate care throughout its lifetime. In particular, the committee's evaluation of randomly sampled megavertebrate deaths at the Rock Creek Park facility revealed few questions about the appropriateness of these animals' care, suggesting that the publicized animal deaths were not indicative of a wider, undiscovered problem with animal care at the Rock Creek Park facility.
Arundel, Kara. Raising America's Zoo: How Two Wild Gorillas Helped Transform the National Zoo. Herndon, Virginia: Mascot Books. ISBN9781684011704. OCLC1000583555.
Meyer, Alfred; Crosby, Thomas; Kamen, Gloria. A Zoo For All Seasons: The Smithsonian Animal World. Smithsonian Exposition Books. ISBN9780895990037. OCLC5537769.
Vandersommers, Daniel. Entangled Encounters at the National Zoo: Stories from the Animal Archive. Lawrence, Kansas: University Press of Kansas. ISBN9780700635689. OCLC1376003490.
Washington Metro 
at Cleveland Park or Woodley Park
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