Ragunan Zoological Gardens, zoo in Jakarta, Indonesia, that is one of the world’s notable collections of Southeast Asian flora and fauna. More than 3,500 specimens of approximately 450 animal species are exhibited on the 200-hectare (494-acre) park grounds. Among these are the orangutan, Sumatran serow, and various other rare animals of Indonesia. The zoo was founded in 1864 on a 4-hectare (11-acre) site and was moved to a new and much more spacious site in the late 1960s. It is operated by the Indonesian government.