<P> Although zebra species may have overlapping ranges, they do not interbreed . In captivity, plains zebras have been crossed with mountain zebras . The hybrid foals lacked a dewlap and resembled the plains zebra apart from their larger ears and their hindquarters pattern . Attempts to breed a Grévy's zebra stallion to mountain zebra mares resulted in a high rate of miscarriage . In captivity, crosses between zebras and other (non-zebra) equines have produced several distinct hybrids, including the zebroid, zeedonk, zony, and zorse . In certain regions of Kenya, plains zebras and Grévy's zebra coexist, and fertile hybrids occur . </P> <P> The common plains zebra is about 1.2--1.3 m (47--51 in) at the shoulder with a body ranging from 2--2.6 m (6.6--8.5 ft) long with a 0.5 m (20 in) tail . It can weigh up to 350 kg (770 lb), males being slightly bigger than females . Grévy's zebra is considerably larger, while the mountain zebra is somewhat smaller . </P> <P> It was previously believed that zebras were white animals with black stripes, since some zebras have white underbellies . Embryological evidence, however, shows that the animal's background color is black and the white stripes and bellies are additions . It is likely that the stripes are caused by a combination of factors . </P> <P> The stripes are typically vertical on the head, neck, forequarters, and main body, with horizontal stripes at the rear and on the legs of the animal . </P>

Do zebras have white stripes or black stripes