Species Name: Lophocebus albigena
The gray-cheeked mangabey (Lophocebus albigena), also called the white-cheeked mangabey, is an Old World monkey found in the forests of central Africa. Gray-cheeked mangabeys belong to the same family (Cercopithecinae) and phylum (Papionini) as mandrills, macaques, and baboons.
Species Name: Mandrillus leucophaeus
The Drill is a primate in the Cercopithecidae family (Old-World monkeys), related to baboons and even more closely to mandrills. Like mandrills, drills are highly social animals that live in groups of around 20 individuals with multiple males and females, with one male dominating reproductive decisions.