A newly discovered dinosaur species offers hints that feathers were much more common among the ancient beasts than once thought.
Several parallel tyrannosaur tracks unearthed in Canada suggest the hungry beasts may have stuck together to better their odds of taking down prey.
One of the first predators of its day, the creature sported compound eyes, body armor and two spiky claws for grabbing prey.
More than 18 dinosaur skeletons illegally taken from Mongolia were formally returned to their homeland during a ceremony in New York last week, U.S. authorities announced.
A computer graphics program brings an extinct predator back to virtual life.
Gigantic sea scorpions that lurked in the ocean more than 400 million years ago weren't as scary as they sound.
Good looks mattered to iconic early bird Archaeopteryx, which showed off colorful feathered 'trousers' 150 million years ago.
More than a million years ago, hippopotamuses paddled across a shallow pool in the region that's now northern Kenya, occasionally scraping their feet on the sandy bottom.
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