The yellow-backed duiker (Cephalophus silvicultor) is a small antelope. It lives in the dense tropical forests of central Africa. Duikers can grow up to 3 feet in height and weigh up to 175 lbs. They live 10 to 15 years in captivity. A typical yellow-backed duiker's diet consists of bark, shoots, buds, seeds, fruits, fungi, herbs and some small animals.