The Tibetan wild donkey, its scientific name is Equus kiang, which is a large mammal of the order Perissodactyla and equine. There are three subspecies, the western subspecies Equus kiang kiang ,the eastern subspecies Equus kiang holdereri and the southern subspecies Equus kiang polyodon.It is native to the Qinghai-Tibet Plateau and distributes in western China, Nepal, Pakistan and northern India. In China, it is mainly distributed in Yushu, Guoluo, Haibei and Haixi prefectures in Qinghai, northwestern Sichuan, Aksai, Sunan and Maqu in Gansu, Altun Mountain in southern Xinjiang, and central and western Tibet. It has the largest shape among all wild donkeys. The head is short, the ears are longer, and the ear shells are more than 170mm long ,which can be turned flexibly. The kiss end is round and blunt, and the color is darker. The whole body coat is mainly reddish-brown, the ear tips, back ridges, mane, and tail ends are dark in color, and the top of the snout, under the neck, chest, abdomen, limbs, etc. are stained white, and the color borders on both sides of the trunk distinct. Tibetan wild donkeys have the habit of group activities, but they are also common in individual activities. Generally, the group size is between 10 and 100, but there are also groups with more than 100 horses. It can even be seen that thousands of them are gathered in large groups, mostly 5 or 6 donkeys form a small group, the small group is led by a male donkey, camping and moving. They are good at running with high alertness. It mainly feeds on grasses,especially Stipa .It also consumes a small amount of Cyperaceae.