Males are usually solitary.
The mountain zebra E. zebra was once common in Cape Colony and Natal and still survives in parts of South Africa and Angola. Grevy's zebra E. grevyi , at 1.6 m and 450 kg, is the largest member of the horse family. It has finer and clearer markings than the mountain zebra and inhabits Ethiopia and Somalia. Whereas other zebra species have a harem system, Grevy's males defend territories that females pass through to graze. The species is classified as endangered.