Zebras' stripes makes them one of the easiest animals to spot while on safari in African savanna and grasslands. There are three primary species of Zebra: plains, Grevy's, and mountain, of which the latter two are endangered. Zebra are known to form herds of up to 200 (known as a "dazzle") and have recently been identified as traversing the longest migration in Africa - some 300 miles from Namibia to Botswana and back - within the Kavango-Zambezi Transfrontier Conservation Area (KAZA), every year.
No one knows exactly why Zebras have stripes, but there are several theories. No two zebras are alike, so one theory is that it serves as a form identification within the herd. Another, is that it designed to confuse their predators when trying to single one out within the fleeing herd. The latest theory is that the stripes deter potential disease-carrying flies from landing on and biting the zebra, however, that theory has yet to be tested in Africa.
One of the best places to spot and photograph zebra is Etosha National Park in Namibia, seen here. The landscape is flat and uninterrupted. While sunrise and sunset game drives generally provide the best lighting, I find zebra photograph well all times of day.