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  • Yak en Zoo Aquarium de Madrid. Zoológico Madrid.
  • Yak en Zoo Aquarium de Madrid. Zoológico Madrid.

Common name:


Scientific name:

Bos mutus grunniens


300-1,000 kg


1.6-2 metros
Mountain plateau



Who is it?

It is a large bovid with woolly fur which protects it from low temperatures in winter, it is native to the mountainous regions of Central Asia. It lives in the high plateaus and mountains of Tibet, in high areas (between 2,000 and 6,000 metres).

Wild yaks are larger than their domesticated relatives (they may weigh as much as 1,000kg and be as much as 2 metres tall).

There are currently few of the living in the wild; most of them are part of the domesticated livestock of Tibetans, to whom they provide meat, milk, wool and even protection.

They are animals whose characteristics make them very useful to humans in those areas, since they may be ridden and serve as beasts of burden; its dung is both fertiliser and fuel.

What are its habits?

They usually group into herds, when they are in herds consisting of females (the “groups” of males do not generally contains more than two).

The breeding season comprises September and October. In the mating season, the males grunt and fight among themselves, causing serious injuries. The females, who only procreate once every two years, give birth to a calf after a gestation of 270 days. Sexual maturity of the yak occurs between the ages of six and eight years.

These mammals feed on all types of vegetation, which they find in their path depending on the period of the year.

Did you know…

Its fur helps it withstand temperatures which reach -40ºC. n spring, however, its fur loses thickness and becomes shinier.

Children under 3 years free!