Yaki or Monkey wolai or black monkey sulawesi (Macaca nigra) are endemic species of Indonesia which only exist north Sulawesi island and some islands around it.Yaki is the largest type of monkey macaque on the island of Sulawesi.Characteristic characteristic of yaki is the color of his entire body is black and has a hair crested on top of his head, and has a pink buttock.
His trademark is a black head that has a crest to resemble a punk style hairstyle.Yaki only has a tail 20 centimeters long, unlike other types of monkeys that generally have a relatively long tail.Thus, they will appear to have no tail at a glance.In addition, his most striking feature is his pink buttocks.Tungging bearings are shaped like kidneys, and are yellow.Yaki female and younger body color is more pale when compared with adult male Yaki.
Yaki can be found in both primary and secondary forests, coastal areas or upland to 2000 levels above sea level (asl).Of the several habitats of his life, yaki prefers to stay in the primary forest, because it is suitable for bed and foraging.They also often descend to plantations for foraging and harvesting crops, so yaki is often regarded as a plant pest.