The Grévy′s zebra, also known as the imperial zebra, is found in Kenya and Ethiopia. It is the largest extant wild equid and is considered to be endangered and the most threatened of all zebras.

Its population has declined from 15,000 to 3,000 since the 1970′s but has stabilized in recent years.

The Grevy's zebras main predator is the lion, but adults can be hunted by hyenas. Wild dogs, cheetahs and leopards rarely attack adults but sometimes prey on young animals. In addition, these zebras are susceptible to various gastro-intestinal parasites, notably of the Trichostrongylus genus.

The Grevy's zebra, also known as the imperial zebra, is the largest of all wild equines. It is 8 to 9 feet (2.5 to 2.75 m) from head to tail with a 22 to 30 inch (55 to 75 cm) tail, and stands 4.8 to 5.2 feet (1.45 to 1.6 m) high at the shoulder. These zebras weigh 770 to 990 pounds (350 to 450 kg).

This zebra also differs from the other two zebras in its more primitive characteristics. First, it is particularly mule-like in appearance; also, the head is large, long, and narrow with elongated nostril openings; the ears are very large, rounded, and conical; the neck is short but thick; it is a taller animal; and its stripes are narrower. This zebra's muzzle is ash-grey to black in color with the lips having whiskers. Too, the mane is tall and erect; juveniles have a mane that extends to the length of the back and shortens as they reach adulthood

The Grevy's zebra differs from the other zebra species in that it does not live in harems and has few long-lasting social bonds. Male territoriality and mother–foal relationships form the basis of the social system of this species.

The Grevy's zebra is found in Kenya and Ethiopia and lives in semi-arid grasslands where it feeds on grasses, legumes, and browse. It can survive up to five days without water.