Science
Earliest ever fossil teeth shed light on the evolution of modern pearly whites – ABC News
A study of primitive fish fossils reveals the system by which humans, and other jawed vertebrates including sharks, grow new teeth is over 400 million years old.
From sharks to humans, jawed vertebrates have very neat and symmetrical sets of teeth.
But at what point in the amazing history of life on Earth did the system for growing teeth in such an orderly f…
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