Beak Evolution Gives New Insight Into the Beginning of Birds

It’s well known that theropods were the ancestors of modern-day birds, but exactly how these dinosaurs made the transition from fearsome maws to toothless beaks has been unclear. A new study from researchers in China shows various adolescent species of toothed theropods actually had both for a time — they transitioned from toothy jaws to beaks during adolescence.

Theropods are what probably caught your eye as a child — whether it’s the Tyrannosaurus, Velociraptor, or Spinosaurus, many the

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