Mandrillus Leucophaeus, also known as the drill monkey or the African drill, is a primarily forest-dwelling primate species found in Central and West Africa. This species is characterized by its distinctive hairless spots on its face, which can vary in color from gray to pink or even bright blue. The drill is closely related to the baboon, and its name is thought to come from its habit of drilling into hard objects in the wild. Synonyms for this species include the white-nosed monkey, the mandrill, and the red-faced drill. The drill is an important species to study due to its unique social behavior, conservation status, and impact on surrounding ecosystems.