In 1943, it was the first to obtain progeny from the African elephants. The review is based on the materials from the Library of Leningradsky Zoo. In modern China there are 54 zoos located in large cities. Besides this, about 60 towns and settlements have their own small zoological gardens, some of them being a part of recreation parks or national reserves. The largest in China Pekin Zoo possesses a unique collection of rarest birds and animals.
Many zoological gardens have a certain specialization.
Some of them exhibit mainly birds, Alpine fauna, or reptiles. Others collect and demonstrate both animals and plants - these are the so called zoobotanical gardens and parks. Several zoological gardens have organized small zoological museums where one can see both staffed birds and animals that once lived in the zoo, as well as their skins, horns, etc. On Malta there exists a zoo specializing in demonstration of various species of the dolphin. Many zoological gardens have a certain specialization.