Dinosaurs: T. rex had more powerful jaws than its theropod ancestors
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Theropod dinosaurs, including carnivores like T. rex and herbivores like Therizinosaurus, evolved deeper and stronger jaws over the course of the dinosaur age
As Theropods Evolved their Jaws got Stronger
If evolution were to continue, would the T-Rex have grown longer arms or would they have eventually been lost? - Quora
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