The Gelada (Theropithecus gelada) is a baboon relative in the Cercopithecidae family of Old World monkeys.
The Mantled Guereza (Colobus guereza) is a monkey in the Cercopithecidae family of old world monkeys.
The Northern Plains Gray Langur (Semnopithecus entellus) is a primate in the Cercopithecidae family…