Back caption: Plenty of room for the gorilla / Bronx Zoo, New York City / The Great Apes House in the Bronx Zoo has five large out-of-doors moated enclosures for the Gorillas, Orang-utans and Chimpanzees. This yard is the summer home of Oka, the big Lowland Gorilla. Around the corner is the home of little Sumaili, the only Mountain Gorilla in the United States.