What type of shrubs do yaks eat?

Yaks primarily feed on a variety of grasses, but they also consume shrubs and woody plants, especially in their natural habitat of the Tibetan plateau. They tend to eat shrubs that are lower in height and have tender leaves, such as willows and various species of alpine shrubs. Their diet may vary seasonally, depending on the availability of vegetation. Additionally, yaks may graze on mosses and lichens when other food sources are scarce.