Domestic yak

The domestic yak (Bos grunniens) also known as the Tartary ox, grunting ox, or hairy cattle is a long-haired domesticated bovid found throughout the Himalayan region of the Indian subcontinent, the Tibetan Plateau and as far north as Mongolia and Russia. It is descended from the wild yak (Bos mutus).

 History 
Scientists have used genetics and archaeology to study the history of yaks.  They have found that there were domesticated yaks on the Tibetan Plateau 2,500 years ago.

 Use 
Yaks are kept for their milk, wool, and meat.  Also, they are used for transportation.  Their dried droppings are burned as fuel in fires.

References

Yak, Domestic
yak
Yak, Domestic
Yak, Domestic