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,
Japanese macaque the winter to warm up. The Japanese macaque is omnivorous and eats a variety of foods. Over 213 species of plants are included on the macaque's diet. It also eats insects, bark, and soil. On Yakushima Island, fruit, mature leaves, and fallen seeds are primarily eaten. The macaque also eats fungi, ferns, invertebrates, and other parts of plants. In addition, on Yakushima, their diets vary seasonally with fruits being eaten in the summer and herbs being eaten in the winter. Further north, macaques mostly eat foods such as fruit and nuts to store fat for the winter, when food is