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Endangered Zebra Foal on Exhibit at Denver Zoo

1_Dever Zoo Bosley and mom

Denver Zoo announced the birth of a Grevy's Zebra on October 8! The male foal was born, on exhibit, to mother Farasi, and keepers have named him Bosley. Zoo visitors can see the mother and newborn in their outdoor exhibit, weather permitting.

2_Dever Zoo Bosley and mom

3_Dever Zoo Bosley and momPhoto Credits: Denver Zoo

Farasi is not a first-time mother, but this recent birth marked the first time she has given birth at Denver Zoo. The father is 15-year-old Punda, who is the only male in the herd. Punda and Farasi were paired under recommendations of the Association of Zoos and Aquariums' (AZA) Species Survival Plan (SSP), which ensures genetic diversity and healthy populations among zoo animals.

The Grevy’s Zebra (Equus grevyi), also known as the Imperial Zebra, is the largest extant wild equid and the largest and most endangered of the three species of zebra, which includes the Plains Zebra and the Mountain Zebra. Native to Kenya and Ethiopia, the Grevy’s Zebra is named after Jules Grévy, who was president of France in the 1880s. French naturalist Emile Oustalet first described the species in 1882.

Compared to the other zebra species, the Grevy’s Zebra is taller, has larger ears, and narrower stripes. It prefers to live in semi-arid grasslands and feeds on grasses, legumes and browse. It can survive up to five days without water. The Grevy’s Zebra differs from the other species in that it does not live in a harem and does not maintain lasting social bonds.

They can mate and give birth, year-round. Gestation lasts about 390 days. Females with young foals may gather into smaller groups, and mares may leave their foals in ‘kindergartens’ while searching for water, usually protected by a single adult male. In order to adapt to the semi-arid environment they are native to, Grevy’s Zebra foals have longer nursing intervals and wait until they are three months old before they start drinking water. The foals become less dependent on their mothers after 6 months, but they continue their association for up to three years.

The Grevy’s Zebra is classified as “Endangered” on the IUCN Red List. It is estimated there are less than 2,500 Grevy’s Zebras still living the wilds of Africa. The main threats the species faces are: loss of habitat, competition for resources with livestock, and being hunted for their skins.