Opened in 1875 in Cincinnati's Avondale neighborhood, the Cincinnati Zoo and Botanical Garden is one of the oldest zoos in the States. It started with 65.4 acres in the heart of the city and has since been extended to 75 acres. It offers a home to 1,896 animals from 500 species. Cincinnati Zoo has a successful breeding program and was the first to breed California sea lions, but it also breeds a number of other endangered animals such as South African cheetahs, Sumatran rhinoceros, western lowland gorillas, Malayan tigers, Masai giraffes, and pottos.

The last living passenger pigeon, named Martha, spent her last days in Cincinnati Zoo. The latest zoo attraction is a baby hippo named Fiona, born in January 2017, the first hippo born at Cincinnati Zoo in 75 years. What is the best zoo in the U.S.? Keep reading to see the full list.

Cincinnati Zoo, 3400 Vine St, Cincinnati, OH 45220, Phone: 513-281-4700

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