Which is tougher: a hippo or a bull shark? Who would win in a fight between a crocodile and a bear? Get an up-close look at some of nature's most shocking animal fights in this playlist.
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The American alligator uses its formidable jaws to crush turtles, but find out how it will fare against another Florida native. Black bears are incredibly powerful and can be downright nasty as you'll see in this video from "Animal Face-Off."