Young males form bachelor herds from the age of two years and leave the herd, returning when they are old enough to handle a herd of their own. The quest for leadership is often a fierce one in which either the challenger or challenged is severly injured. Cape mountain zebras are found in herds of up to 12 animals, but usually around five or six, consisting of a dominant stallion with mares and foals. Single foals, born mostly in December, nibble at pellets of their mothers' faeces. These contain intestinal micro-organisms which help them digest the grasses that form their staple diet.
They differ from Burchell's (plains) zebra in that the black stripes on their bodies are narrower, and they do not have 'shadow stripes'; also their stripes do not reach under their bellies: they have white underparts. On cold winter mornings they will move, one by one, to the east-facing slopes of their territory and stand at right angles, soaking in the warming rays of the sun.