Rhinocerotidae

Rhinocerotidae is a family of odd-toed ungulates in the order Perissodactyla, commonly known as rhinoceroses. Five species survive today, the white and black rhinoceroses of Africa and the Indian, Javan, and Sumatran rhinoceroses of South and Southeast Asia. Rhinos are among the largest remaining megafauna, all weighing over half a tonne as adults, and are protected by thick skin formed from layered collagen in a lattice structure; they carry one or two horns, eat mostly leafy plant material, and have relatively small brains for their body size, with African species lacking front teeth and using their lips to feed instead.