One of three species of striped, horselike mammals belonging to the family Equidae and found wild in Africa. Zebras are classified in the order Perissodactyla (odd-toed ungulates), a group of mammals in which the middle toe is functional and the second and fourth digits are vestigial. All equids walk on the tips of their toes (unguligrade locomotion). Zebras stand 1.2 to 1.5 m (4–5 ft) high at the withers. Adults weigh 106–202 kg (235–450 lb). The dental formula is I 3/3, C 1/1, PM 3/3, M 3/3 × 2 for a total of 40 teeth.