The mandrill is the biggest monkey and the most colorful mammal. It is closely related to the baboon. The mandrill walks on all four legs. These intelligent primates are endangered due to loss of habitat. Mandrills have a life span of about 45 years in captivity.
Mandrills have a large, muscular body, dark brown fur, and a short, stubby tail.
The face and buttocks are hairless and brightly colored. When the male mandrill is angry or otherwise excited, the colors become even brighter. The female has duller colors. Males have large, pointed canine teeth. Mandrills eat mostly plants, but also eat insects and other small animals, including lizards and snakes.