Antelopes The Bongo , or broad-horned antelope, Boocercus eurycerus , is one of Africa's most elusive animals. Keeping close to the jungle, it never shows itself in the open. The bongo is about four feet high at the shoulder. It is a rich chestnut color with vertical white lines on the sides of the body.
Bulls grow darker with age and become black about the head and neck.
Both male and female have massive horns that spiral in one complete twist, but the female's are not as large as the male's. The Gemsbok , Oryx gazella , may not be the fleetest antelope on the African plains, but it requires an exceptionally fast horse to overtake one. When hard pressed or attacked, the gemsbok will boldly defend itself. Both sexes have horns but the females are longer. Gemsboks are sociable animals, spending time on open plains.