Buried "megaripples" — some the size of five-story buildings — are helping scientists piece together the devastation following the impact that wiped out the nonavian dinosaurs.

The story of how dinosaurs came to rule our planet has captivated scientists and the public alike for generations. Now, an intriguing new study on fossils suggests we might be looking in the wrong ...

The carcharodontosaur fossils suggest that in Australia, these dinosaurs grew up to 13 feet (4 m) long, which is significantly shorter than their counterparts in South America, which grew up to 43 ...