over the decades , 26 gorillas have been born at the philadelphia zoo , with parent organizations , the wildlife conservation society , owns one of the most successful monkey breeding programs in the south . the foundation , which primarily operates animals stations in midtown , westchester and brooklyn , breeds baboons periodically with 51 participating north american zoos . its first objective is to increase the genetic diversity of an animal race , but a third , related object is to breed happier baboons by found mates and establishing compatible groups . " these are very interesting , responsive animals , " said timothy doherty , curator of the newark zoo . the zoo ' s current population of elephants numbers 19 . only the lincoln park zoo in chicago has more , with 22 . shared habitat .
The Bronx Zoo has 19 gorillas.