Dinosaur poop is providing vital clues about "who ate whom" 200 million years ago. Researchers have been able to identify undigested food remains, plants and prey in the fossilized feces of the ...

Researchers discover oldest US gun dating back almost 500 years From roughly 230-200 million years ago, during the Late Triassic and into the early Jurassic periods, dinosaurs emerged from just ...

A chicken-sized dino, the oldest known in North America, has thrown a wrench in the widely accepted timeline of early dinosaur history.

How and when dinosaurs first emerged and spread across Earth more than 200 million years ago has been a source of debate among paleontologists for several years. The mainstream view has held that ...

Our planet's Moon might look dead and stagnant from our vantage point here on Earth, but a new study suggests it was moving about just a 'hot minute' ago.