The yak is a member of the bovine family, and has long, shaggy fur. Yaks can be found in some areas of Asia, Mongolia, and Russia. These animals have been widely domesticated; however, there is still a small population of yaks that are wild. Yaks live in herds that consist anywhere from 10 to 100 of these animals. The yak is an herbivore, and mainly eats grasses while it grazes. In the wild, these animals can live between 15 to 20 years. These bovines can weigh from 650 to 2,200 pounds. Since yaks are so large, people have domesticated them to help them in their daily tasks. These animals are used to pull heavy machinery and move large loads of supplies through the mountains of Asia.
The female yak begins to produce yak milk after she has given birth to her first calf. The milk that comes from a female yak has an extremely high fat content; therefore, it is used as an ingredient to make butter, yogurt, and cheese.