[2] The zoo is currently home to over 800 animals of about 110 species, including tiger, leopard, clouded leopard, hippopotamus, crocodile, elephants, Himalayan black bear, jackal, black bucks, spotted deer, peafowl, hill myna, gharial, python, Indian rhinoceros, chimpanzee, giraffe, zebra, emu, and white peacock.
[2] Having started as a botanical garden, the park currently houses more than 300 species of trees, herbs and shrubs.
[2] The park also includes an aquarium which is the largest revenue generator after the general admission fee.
[2] The Patna Zoo makes considerable effort to conserve and propagate endangered species from around the world.
Breeding captive wild animals is a difficult challenge that the zoo has met with some notable success.