These cold-adapted cousins of modern elephants coexisted with humans for thousands of years. Learn what we know (and don't know) about them -- and why we shouldn't bring them back -- in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/extinct-animals/woolly-mammoth.htm

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07:17

Do Lemmings Really Jump Off Cliffs?
13:23

What Would Happen If You Drank Saltwater?
12:12