The Chacma Baboon (Papio ursinus), also known as the Cape Baboon, is, like all other baboons, from the Old World monkey family. With a body length of up to 115 cm and a weight from 15 to 31 kg, it is among the largest and heaviest baboon species. The Chacma is generally dark brown to gray in color, with a patch of rough hair on the nape of its neck. Unlike the northern baboon species (the Guinea, Hamadryas, and Olive Baboons), Chacma males do not have a mane. Perhaps the most distinctive feature of this baboon is its long, downwardly-pointed face. Males can have canine teeth as long as 2 inches (longer than a lion's canine teeth). Baboons are sexually dimorphic, males being considerably larger than females.