Domesticated yaks (Bos Grunniens or the grunting ox) are thought to have been domesticated by Qiang herdsmen on the Tibetan (Qinghai) Plateau around 4,500 years ago. The Tibetan culture of the Himalayan Plateau is intertwined with yak just as Native American Plains Indian culture is intertwined with the American Bison.
Zebras are a keystone species in the Kalahari; they are a source of food both for predators such as lions and for scavengers such as brown hyenas and whitebacked vultures. Shown here are birds surveying an injured animal on the Makgadikgadi grasslands. (Adrian Bailey).
Grevy's Zebra has been assessed as Endangered under criterion A2acd. There was a population reduction of 54% over the past three generations (30 years) from an estimated 5,800 in the late 1980s to a current population of about 2,680 individuals.