The yak is a beautiful bovine adapted especially for its cold, high-altitude environment. Learn about yaks and their amazing milk and fiber in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/mammals/yak.htm

BrainStuff Classics: What's the Controversy Behind 'Mary Had a Little Lamb'?
06:30

What Was the World's Largest Nuclear Weapon?
10:52

How Do Red-Tailed Hawks Work?
09:24