Bos grunniens WIKIPEDIA:Yak domestic yak yak Bos grunniens Linnaeus, 1766 MSW3:14200680 The yak (Bos grunniens) is a long-haired humped domestic bovine found in Tibet and throughout the Himalayan region of south central Asia. In Tibetan, the word yak refers only to the male of the species; a female is a dri or nak. In English, however, yak is usually used for both sexes. Wild yaks (Bos mutus) stand about two meters tall at the shoulder. Domestic yaks are about half that height. Both types have long shaggy hair to insulate them from the cold. Wild yaks can be either brown or black. Domesticated ones can also be white. Both males and females have horns. The word Yak is also used to describe an irritating or disagreeable individual. grunting ox yak Bos requires discussion