Sheppard Software
Sheppard Software: Yak
This site gives an in-depth description of a yak, including its behavior, appearance, and classification. The site includes photos and illustrations and an interactive quiz to test your understanding.
A-Z Animals
A Z Animals: Animal Facts: Yak (Bos Grunniens)
This entry identifies the defining characteristics of the bos grunniens, otherwise known as the yak.
Canadian Museum of Nature
Canadian Museum of Nature: Yak
Did you know that yaks have been domesticated for at least 2000 years? General information describes its characteristics and location.