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How Teeth Changed the Evolution Game (And Why Some Animals Lost Them Anyway)

How Teeth Changed the Evolution Game (And Why Some Animals Lost Them Anyway)

There’s a conundrum in the paleontological community that’s been going on for quite some time. Did teeth evolve from outside dentine armor in ancient fish, or did the armor outside come from teeth in the mouth? Also, what’s up with most amphibians and all modern birds losing their teeth? PBS Eons’ Kallie Moore tells us the story.

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