They are farmed for their milk, meat, and hides, as well as beasts of burden and pets. Yaks appear as a substitute for cows and bulls in the How to Train Your Dragon Franchise. This makes them an easy target for dragons to hunt.
When they fall down, they are unable to stand up again. They do not have many talents or abilities, however, they are known to be able to run at fast speeds when escaping danger. These large mammals are often found slowly grazing grass on Berk. Yaks are quiet, peaceful animals that were terribly afraid of dragons when they first invaded Berk.
They live in central Asia in the Himalayas and have been domesticated for thousands of years in this region. In actuality, Yaks are not shoed like horses and have cloven feet, not a single, hooved toe like horses. Oddly enough, a Yak makes an appearance in the movie short, Book of Dragons, and is being showed.
They have cloven feet and they are members of the bovine family, making them related to cattle, bison, buffalo, and others. Yaks ( Bos grunniens) are woolly, shaggy large mammals with a pair of horns.