Chongqing Zoo was built in 1953 and lies in the southern suburb of Chongqing. It occupies an area of 45 hectares (112 acres), making it one of the biggest urban zoos in China. The panda house alone is about 2 hectares (5 acres) in size. The zoo is home to more than 230 different animal species, and contains a total of more than 6000 animals. The zoo serves as both a reserve and the base of the breeding program for giant pandas, lesser pandas, South China tigers, and other endangered species.