Muna-Buton macaque Muna-Buton macaque The Muna-Buton macaque ("Macaca ochreata brunnescens") is one of seven Sulawesi macaques in Indonesia. It is only found on two small islands off the south-east coast; the islands of Buton and Muna. This Old World monkey is diurnal and arboreal, although it can spend significant amounts of time on the ground. It is black with grey "boots" and a brownish colour to the fur on its back. Like other Sulawesi macaques it has a reduced tail of only about 35mm in length. Its body is about 475 - 495mm in length. The Muna-Buton macaque feeds on fruits for
Arunachal macaque and 3500 m above sea level, making it one of the highest-dwelling primates. It belongs to the "M. sinica" species-group of macaques, along with the Assamese macaque ("M. assamensis"), the Tibetan macaque ("M. thibetana"), the bonnet macaque ("M. radiata") and the toque macaque ("M. sinica"). The Arunachal macaque is apparently physically similar to the Assam and Tibetan macaques, while genetically closely related to the bonnet macaque of southern India. This is probably the result of convergent evolution, where organisms evolve similar physical features due to similar environmental selection pressure, while genetically they may have different origins. However, its full specific