A225-million-year-old fossil discovered in Africa is rewriting the story of how dinosaurs first emerged. The fossilized leg bone, belonging to a little-known group of reptiles called silesaurs, ...

We know the main reason that the age of the dinosaurs came to an end: an asteroid impact on the Yucatán Peninsula some 66 million years ago. But how the dinosaurs’ reign began is far less clear—and ...

(CNN) — A remarkable Early Jurassic record has been hiding in plain sight for 20 years on a slab of rock displayed at a high school in Biloela, Australia, according to a new study. While researchers ...

Add Yahoo as a preferred source to see more of our stories on Google. Using the James Webb Space Telescope, astronomers may have discovered the first evidence of dinosaur-like monster stars that ...

A previously untapped source of data sheds new light on the climate of the early Earth: fossilized dinosaur teeth show that the atmosphere during the Mesozoic era, between 252 and 66 million years ago ...

"A bit like dinosaurs on Earth — they were enormous and primitive. And they had short lives, living for just a quarter of a million years." When you purchase through links on our site, we may earn an ...