The yak is native to which country?

The yak is native to China, especially the high-altitude Tibetan Plateau and surrounding regions of western China.

Wild yaks evolved in the cold, oxygen-poor environment of the plateau, where their dense coats, large lungs, and compact bodies help them survive at elevations often above 4,000 metres. Domestic yaks were developed from wild populations and became essential to Tibetan and other highland communities for transport, milk, meat, fibre, hides, and fuel.

The answer is sometimes described more specifically as Tibet, but Tibet is a region of southwestern China rather than a separate sovereign country in the usual modern geographic classification. Yak populations also occur across neighbouring parts of Mongolia, Nepal, Bhutan, India, and Russia, so the broader animal range extends beyond China; the species' principal native homeland, however, is the Tibetan Plateau.

Yaks are not simply long-haired cattle, although domestic yaks can interbreed with cattle. Their scientific name is Bos grunniens, and the wild yak is considerably larger than most domesticated animals.