Tyrannosaurus rex is often seen as the unstoppable king of the dinosaurs, but life in the Hell Creek ecosystem was far from easy. Massive herbivores like Triceratops, heavily armored Ankylosaurus, and ...

The massive reptile may have weighed more than 4.5 tons and been 35 feet long—much bigger than its related peers at the time ...

A tooth fragment found in the skull of a fossilized dinosaur sheds light on the Tyrannosaurus rex’s feeding habits.

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Sue the T. rex is one of the largest and most complete skeletons of the species ever discovered. She's housed at the Field Museum in Chicago and was analyzed in this study along with three other ...

Fossil evidence shows that baby long-necked dinosaurs were a major food source for several large meat-eating dinosaurs during the Late Jurassic period. Because these young plant-eaters were so common ...

Ever since the release of the blockbuster Jurassic Park, the Tyrannosaurus rex has been associated with ground shaking tremors as it moved. But infact, rather than stomping heel-first, the prehistoric ...

New findings about the anatomy of the dinosaur age’s fiercest predator suggest it chased prey “like an oversized bird.” By Jack Tamisiea Jack Tamisiea has previously reported on T. rex’s lips and the ...

How the bulky T. Rex may have been sneakier than we once thought. At 13 feet tall, and weighing almost nine tons, Tyrannosaurus Rex was one of the largest predators to walk the earth. Despite their ...