Scientists have unveiled a previously unknown tyrannosaur species that fundamentally changes our understanding of how the mighty Tyrannosaurus rex evolved. The newly identified dinosaur, named ...

At the American Museum of Natural History in New York, a hadrosaur skeleton shows a T. rex tooth embedded in its back. The surrounding bone shows healing, meaning the prey survived the initial ...

(Reuters) - The young Gorgosaurus knew what it liked for dinner. About 75 million years ago in what is now Canada's Alberta province, this fearsome T. rex cousin set about hunting turkey-sized ...

WASHINGTON (Reuters) -Tyrannosaurus subdued prey with raw power, using bone-crushing bite force. But other meat-eating dinosaurs that rivaled T. rex in size used different approaches. Giganotosaurus ...

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WASHINGTON, Oct 9 (Reuters) - In western North America during the twilight of the dinosaur age, the unquestioned ruler was Tyrannosaurus rex, one of the largest terrestrial predators in Earth's ...