What's the difference between wild yak and domestic yak?
Because natural yak is not a wild yak, it is very big, because the composition of natural yak lactation is irregular and it is also very risky to meet the outside world. Domestic yaks are actually raised by wild yaks. Wild yak is much smaller than wild yak. The difference between them mainly lies in the design. Wild yaks are bigger and thicker than domestic yaks. Wild yaks have prominent shoulders and domestic yaks have flat shoulders. Wild yaks have long hair on their chests and dark purple on their backs. Domestic yaks have short hair on the chest and black and red on the back.
How long is the origin of yak?
Domestic yak originated in Tibet, China, and wild yak is the ancestor of domestic yak. However, the yak fossils found in North China, Inner Mongolia, Siberia and Alaska, whether wild yak in Kunlun Mountain area of northern Tibet Plateau or domestic yak raised by wild yak, are primitive yaks that survived more than 3 million years ago and are widely distributed in the northeast of Eurasia. Later, due to plate movement and climate change, they moved southward to the Qinghai-Tibet Plateau in China, the roof of the world, and adapted to the cold climate.
Therefore, it can be said that yak began to communicate in the northeast of the subcontinent. Today's domestic yak and natural yak are descendants of the same ancestor, and there will be no kinship. Wild yak is not the ancestor, origin or ancestor of domestic yak. In addition, in the history of China, during the Yin and Zhou Dynasties, we tried to cross with ordinary cattle and tumor cattle. At present, there is a wide contact area on the edge of Qinghai-Tibet Plateau, and gene exchange is carried out according to fertile cows. Therefore, we should think that the existing yaks have absorbed some genetic genes of common cattle and tumor cattle to some extent.