There large mammals—such as elephants, hippopotamuseshippopotamusesThe order Artiodactyla contains nine families of living mammals, of which the Bovidae (antelopes, cattle, sheep, and goats) is by far the largest, containing nearly 100 species. The two hippopotamus species (Hippopotamidae) are African.https://www.britannica.com › animal › artiodactylartiodactyl | Definition, Diet, and Facts | Britannica, rhinoceroses, warthogs, giraffes, antelopes, lions, leopards, and cheetahs—coexist with a wide assortment of birds and reptiles. The rivers and the lake are among the richest in fish of all African waters.