21. The grey-cheeked mangabey is a dark monkey, looking in shape overall like a small, hairy baboon. 22. Trypanolytic factors are found only in a few species including humans, gorillas, mandrills, baboons and sooty mangabeys . 23. Inside these tents, primates like colobus monkeys and red-capped mangabeys can play and climb on twisting vines. 24. The collared mangabey is listed as vulnerable on the IUCN Red List due to habitat loss and hunting for bushmeat. 25. The Tana River mangabey is found on the continent of Africa in the southeastern portion of Kenya along the bush babies. 26. It had been was considered a subspecies of the gray-cheeked mangabey ( " L . albigena " ), 27. He constructed maternal family trees for the monkeys from extensive records of pigtail macaques, rhesus macaques and mangabeys held at the university. 28. Yerkes'proposal to do AIDS-related research on endangered sooty mangabey monkeys drew opposition from numerous primatologists, including Jane Goodall. 29. The Tana River mangabey is a polygynous species with two or more males within each group depending on the size of the group. 30. The collared mangabey has grey fur covering its body, but its common names refer to the colours on its head and neck.
