The Gelada (Theropithecus gelada), sometimes called the Gelada Baboon,'s a species of Old World monkey found only in the Ethiopian Highlands, with large populations in the Semien Mountains. Theropithecus's derived from the Greek root words for "beast-ape." Like its close relatives the baboons (genus Papio), it's largely terrestrial, spending much of its time foraging in grasslands. Since 1979 it's been customary to place the Gelada in its own particular genus (Theropithecus), though some geneti… (More on Theropithecus)