Celebes crested macaque Celebes crested macaque 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. Locally known as "yaki" or "wolai", its skin and hairless face is, with the exception of some white hair in the shoulder range, entirely jet black. Unusual for a primate, it has striking reddish-brown eyes. The long muzzle with high cheeks and the long hair tuft, or crest,
Nicobar long-tailed macaque territory measures some on average. The Nicobar long-tailed macaque is a frugivore, with its principal diet consisting of fruits and nuts. In common with other crab-eating macaques it turns to other sources of food—typically in the dry and early rainy tropical seasons—when the preferred fruits are unavailable. This alternate diet includes young leaves, insects, flowers, seeds, and bark; it is also known to eat small crabs, frogs and other creatures taken from the shorelines and mangroves when foraging in these environments. Macaque populations which live in areas close to human settlements and farms frequently raid the croplands for food, and