Despite their names, both of these animals are gray. Both have two horns growing from their snouts. The white rhinoceros ranks with the hippopotamus as the largest living land mammal next to the elephant. During the breeding season the males fight each other fiercely. White rhinoceroses live on grassy plains in herds of about a dozen animals.
Black rhinoceroses are smaller than white rhinoceroses.
Instead of grazing like the white rhinoceros, black rhinoceroses browse on trees and bushes. The other three species live in Asia. The two species of Asian one-horned rhinoceroses live in swampy jungles. The Javan rhinoceros is slightly smaller than the greater Indian species and can be distinguished by a continuous fold of skin across the middle of the back. The Javan rhinoceros once ranged over much of southeastern Asia, but today only about 50 animals remain in an isolated preserve on the island.