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 faced extinction as numbers declined drastically to less than 60 individuals at the beginning of the 20th century. However, due to conservation efforts, an estimated 4,872 of these zebras in 76 sub-populations throughout South Africa was recorded in 2015. Their population grows an estimated 9% each year.Read More: The Quagga - A lost species of Zebra