When it comes to prehistoric mammals, there are two that spring immediately to mind: the mammoth or mastodon (we're not going to split that wooly hair quite yet), and the saber-toothed cat (often wrongly called a "saber-tooth tiger"). There's just something really surreal and terrifying about an animal that's bigger than any living cat, with 11-inch incisors jutting out of its mouth. But as it turns out, the fact that we're living in an age without saber-toothed animals is the anomaly. Saber-toothed meat-eaters have evolved no less than seven separate times in the history of the planet — so why aren't there any left? We talked to Bill Simpson, the Head of Geological Collections at The Field Museum in Chicago, to find out.
Nasty, Big, Pointy Teeth
Saber Teeth Across The Ages
How Saber-Toothed Cats Grew Their Mouth Swords
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