Celebes crested macaques (Macaca nigra)

Comments
=========
The Celebes crested macaque (Macaca nigra), also known as the crested black macaque, Sulawesi crested macaque, or the black ape, is an Old World monkey that lives in the Tangkoko reserve in the northeastern tip of the Indonesian island of Sulawesi (Celebes), as well as on smaller neighboring islands. Macaca nigra lives typically in groups of five to twenty-five animals, and occasionally in groups of up to seventy-five animals.