Tianzhu white yak
Special Characteristics: 
The breed has a medium body size and fine structure, a well developed forepart but a less-developed rare and strong but short legs. And there are big differences in size between the two sexes. Compared to the females, the males have larger heads with a wider forehead, longer and coarser horns with a visible contour, a larger mouth and broader muzzle, thinner lips, smaller nose and a coarser neck. The sex dimorphism is grater in the Tianzhu white yak than in other breeds.
Main Location: 
Found in Tianzhu county of Gansu province, which is located in the eastern end of the Qilian Mountains and the northern edge of the Qinghai-Tibetan Plateau.