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Many animals can reshape and shed their teeth—and now scientists have traced this ability back 380 million years
Losing your baby teeth is a strange experience. The teeth gradually loosen until they're replaced by thicker, more durable and permanent ones. But humans aren't the only animals capable of shedding ...
Add Yahoo as a preferred source to see more of our stories on Google. Artist's illustration of Bullerichthys, a placoderm fish that could resorb its teeth like modern bony fishes do. Brian Choo & ...
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