The Elephant Gate: one of two zoo entrances
|Land area||35 hectares (86.5 acres)|
|No. of animals||20,219 (December 2017)|
|No. of species||1,373 (December 2017)|
|Annual visitors||More than 3.5 million (2017)|
The Berlin Zoological Garden (German: Zoologischer Garten Berlin) is the oldest and best-known zoo in Germany. Opened in 1844, it covers 35 hectares (86.5 acres) and is located in Berlin's Tiergarten. With about 1,380 different species and over 20,200 animals, the zoo presents one of the most comprehensive collections of species in the world.
The zoo and its aquarium had more than 3.5 million visitors in 2017. It is the most-visited zoo in Europe and one of the most popular worldwide. Regular animal feedings are among its most famous attractions. Globally known animals like Knut, the polar bear, and Bao Bao, the giant panda have contributed to the zoo's public image.
The zoo collaborates with many universities, research institutes, and other zoos around the world. It maintains and promotes European breeding programmes, helps safeguard several endangered species, and participates in several species reintroduction programs.
Opened on 1 August 1844, the Zoologischer Garten Berlin was the first zoo in Germany. The aquarium opened in 1913. The first animals were donated by Frederick William IV, King of Prussia, from the menagerie and pheasantry of the Tiergarten. The nearby U-Bahn station was opened the same year.
In 1938, the Berlin Zoo got rid of Jewish board members and forced Jewish shareholders to sell their stocks at a loss, before re-selling the stocks in an effort to "Aryanize" the institution. The zoo has now commissioned a historian to identify these past shareholders and track down their descendants, according to a report by AFP. Zoo director Lutz Heck was named chief of the Oberste Naturschütz Behörde im Reichsforstamt (highest nature preservation agency in the state department of forestry) by his friend Hermann Göring in the summer of 1938 and in this capacity he was the senior responsible person for the entire nature management.
World War II
During World War II, the zoo area was hit by Allied bombs for the first time on 8 September 1941. Most damage was done during the bombardments on 22 and 23 November 1943. In less than 15 minutes, 30% of the zoo population was killed on the first day. On the second day the aquarium building was completely destroyed by a direct hit. Of the eight elephants only one survived, the bull Siam. 2-year-old hippo bull Knautschke was saved from the fire in his animal house. Most damage was done during the Battle of Berlin. From 22 April 1945 onwards, the zoo was under constant artillery fire of the Red Army. Heavy fighting took place on the zoo area till 30 April. Because of safety measures, some predators and other dangerous animals were killed by the zoo keepers.
By the end of the war, the zoo was fortified with the Zoo Tower, a huge flak tower that was one of the last remaining areas of Nazi German resistance against the Red Army, with its bunkers and anti-aircraft weapons defending against Allied air forces. At the entrance of the zoo, there was a small underground shelter for zoo visitors and keepers. During the battle, wounded German soldiers were taken care for here by female personnel and the wives of zookeepers. On 30 April, the zoo flak bunker surrendered.
A count on May 31, 1945, revealed only 91 of 3,715 animals had survived, including two lion cubs, two hyenas, Asian bull elephant Siam, hippo bull Knautschke, ten hamadryas baboons, a chimpanzee, and a black stork. After the battle, some animals disappeared or were eaten by Red Army soldiers. Following the zoo's destruction, it and the associated aquarium was reconstructed on modern principles so as to display the animals in as close to their natural environment as feasible. The success in breeding animals, including some rare species, demonstrates the efficacy of these new methods.
The Berlin Zoo is the most visited zoo in Europe, with more than 3.3 million visitors per year from all over the world. It is open all year long and can easily be reached by public transportation. The Berlin Zoologischer Garten railway station (also simply known as Zoo) is one of Berlin's most important stations. Several modes of transport such as U-Bahn, S-Bahn and buses are interlinked here. Visitors can either enter the zoo through the exotically designed Elephant Gate beside the aquarium on Budapester Straße or through the Lion Gate on Hardenbergplatz.
The zoo maintains studbooks for black and Indian rhinoceroses and gaurs. The populations of rare deer and pigs are part of several captive breeding projects. Berlin Zoo supports conservationists in other countries (for instance, in Madagascar) and as a partner of the Stiftung Artenschutz, a species protection foundation.
Most of the animals are housed in enclosures designed to recreate their natural habitat.
The carnivore house displays all big cats and many rare small predators, such as ring-tailed mongooses and narrow-striped mongooses from Madagascar. In the basement, visitors are invited to a view into the world of nocturnal animals.
The bird house presents a walk-through aviary and offers a broad variety of forms, including several regularly breeding species of hornbills and many parrots. Numerous big aviaries show waders, herons and many other species. The Berlin Zoo is one of the few zoos to exhibit tuatara (in the aquarium) and Luzon tarictic hornbills.
The aquarium was built in 1913 as part of the Zoologischer Garten complex. In addition to fish and other aquatic life, it is home to most of the zoo's reptiles, amphibians and invertebrates.
Polar bear Knut was born in captivity at the zoo on 5 December 2006. He and his twin brother or sister were directly rejected by their mother at day of birth. He was subsequently raised by zookeeper Thomas Dörflein and became the center of a mass media phenomenon that spanned the globe, quickly spawning numerous toys, media specials, DVDs, and books. Because of this, the cub was largely responsible for a significant increase in revenue, estimated at about five million euros, at the Berlin Zoo in 2007. Zoo attendance figures for the year increased by an estimated 30%, making it the most profitable year in its 165-year history. Knut died on 19 March 2011 after collapsing in his exhibit.
Bao Bao (1978–2012) was one of the first two giant pandas in Germany and became – for a time – the oldest known panda in zoos. He was together with the female panda Tjen Tjen (who died in 1984) given to West Germany by China in 1980. Between 1991 and 1993 Bao Bao was loaned to London Zoo. In 1995, back in his Berlin home, another female named Yan Yan was sent on loan from China in an attempt to mate Bao Bao. In spite of several artificial insemination experiments there were no offspring. Yan Yan died in 2007. In summer 2017, giant pandas returned to Berlin, when Jiao Quing and Meng Meng arrived on breeding loan from China. In September 2019, Meng Meng gave birth to twin panda cubs.
Fatou the female gorilla was born on the 13th of April 1957. She came to the zoo at an estimated age of two. In 1974 she gave birth to the first gorilla to be raised in Berlin, Dufte. Since the death of Colo in January 2017, she is the oldest living gorilla in captivity of the world (now together with American gorilla Trudy).
In 2008, Claudia Hämmerling, a Green Party MP, accused the zoo director, Bernhard Blaszkiewitz, of selling hundred of animals for slaughter, in some cases to breeders in China for potency-boosting drugs. 
In 2009, a woman was mauled by polar bears after jumping into their exhibit. She was rushed to the hospital and survived.
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as a result of division, Berlin has two planetariums, two philharmonic orchestras and concert halls, two Grand Hotels and two zoos. The Tierpark, not to be confused with the Tiergarten, in Friedrichsfelde [is the new one in East Berlin.]
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- Official website (in German and English)