Zebra It is an inhabitant of the semi-arid grasslands of Ethiopia and northern Kenya. Grévy's zebra is the rarest species, and is classified as endangered. 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,
Zebra duiker at birth. During the first ten days after birth, referred to as the lactation period, a newborn grows at a rate of about 94 g/day. After that, the growth rate decreases considerably. Females reach sexual maturity at 9–12 months of age and males reach sexual maturity at 12–18 months. "Cephalophus zebra" is the only duiker species with the diploid number 2n=58. Zebra duikers have displayed diurnal activity when living in captive situations, but mostly nocturnal in the wild. They are solitary animals that form pair bonds for breeding purposes. Both the male and female participate in the defense of young