The hunting allosaurus used its head like a baseball bat, knocking its prey sideways before using its teeth to tear away flesh. Allosaurs, which were built like tyrannosaurs only smaller, lived and ...

A remarkable new species of meat-eating dinosaur has been unveiled at the Natural History Museum of Utah. Paleontologists unearthed the first specimen in early 1990s in Dinosaur National Monument in ...

About about 145 million to 200 million years ago during the Jurassic Period, Earth’s creatures had to contend with one of the most powerful, ferocious predators that ever lived—a clawed, flesh-eating, ...

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Jan. 24 (UPI) --More than two decades after a unique two-legged carnivore was unearthed in Utah's Dinosaur National Monument, scientists have given the massive carnivore a name. Scientists announced ...