This is the Preuss’s monkey (Allochrocebus preussi)! Also called Preuss’s guenons. Endemic to Cameroon, Nigeria, and Bioko Island in Equatorial Guinea. Their distribution is restricted to only 8 population segments. Semi-terrestrial, they make their homes in the forest’s understory. They live in groups of 9-12 individuals, consisting of one or more males, several females, and their young. Threatened by habitat loss and fragmentation and hunting; populations are rapidly declining. Listed as...