There are three species of zebra, one of which is the Grevy's (Equus grevyi). The other two are the common zebra (Equus burchelli) and the mountain zebra (Equus zebra). The common zebra is widely distributed throughout southern and eastern Africa, south of the Sahara. This species displays differences in markings because of its wide distribution and this once resulted in the assumption that there were a great many different species of zebra in Africa. Today it is generally accepted that there are four subspecies of common zebra. These are Grant's zebra (Equus burchelli boehmi), Chapman's zebra (Equus burchelli antiquuorum), Selous' zebra (Equus burchelli borensis) and the true Burchell's zebra (Equus burchelli burchelli), which is now an extinct race.
Two subspecies of mountain zebra are recognized, living in southern Africa. These are Hartmann's zebra (Equus zebra hartmannae) and the Cape mountain zebra (Equus zebra zebra) which is endangered - in 1937 this subspecies was reduced to only 45 individuals as a result of relentless hunting by farmers. The 45 animals were given protection in a national park in South Africa and their numbers have now increased to about 500.Read More: The Quagga - A lost species of Zebra