Evolution of the Dinosaurs

Dinosaurs First Appear

How were the dinosaurs unique among the reptiles?

Dinosaurs, unlike other reptiles, had their legs tucked in underneath their bodies. This gave them the ability to run and walk very efficiently, eventually leading to some species becoming totally bipedal (two-footed). They also had a keener sense of smell, sight, and hearing, unlike the amphibians and primitive reptiles.


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