Fossil mammal with reptile-like teeth changes picture of our evolution
Unlike most modern mammals, which get just two sets of teeth in their lifetime, an ancient species from the Cretaceous, found in China, appears to have had the ability to replace its teeth throughout its life
Unlike most modern mammals, which get just two sets of teeth in their lifetime, an ancient species from the Cretaceous, found in China, appears to have had the ability to replace its teeth throughout its life
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