The white rhinoceros is a large and heavy animal that has a big and long head, wide mouth, broad chest, protruded ears, small eyes and a short neck. They can weigh up to 2,300 kg (5,100 lb) or 4 m (13.1 ft) in length. Except the ear fringes and tail bristles, their brownish bodies do not have fur or hair, but the skin is very thick and solid. The feet are stumpy with three toes. What makes rhinoceroses really special is their horn-like bumps on their stumps, one behind the other. The first one is longer than the second and it is about 60 cm (24 in). There is also a distinctive hump on the back of their necks.