Western red colobus

The western red colobus, Piliocolobus badius, also known as the bay red colobus, rust red colobus or Upper Guinea red colobus, is an Old World monkey of West African forests, and all other red colobuses were once treated as its subspecies. Two subspecies are recognised, the bay red colobus and Temminck's red colobus, and both are endangered. Its range includes scattered populations in Sierra Leone and continuous ones in Liberia, Guinea and western Ivory Coast. It is arboreal and typically found in primary rainforest, though it also uses secondary and gallery forest. It has a head and body length of 450 to 670 mm, a tail of 520 to 800 mm and a weight of 5 to 11 kg, with a red or chestnut-brown head and limbs and black, slate-grey or dark brown upper parts. It lives in colonies of twelve to eighty and is frequent prey of the common chimpanzee; in 1994 monkeys of this species passed Ebola virus to many chimpanzees that had hunted and eaten them.