When a massive asteroid struck our planet about 66 million years ago, 75% of our planet's flora and fauna perished due to the impact. The cataclysmic event marked the end of the Cretaceous Period and ...

"Many of them had feathers, [so] they could insulate themselves just like mammals can," Brusatte said. In addition, some ...

A stark contrast to the feathers of flying dinosaurs like Archaeopteryx and most modern-day birds ... Its fossil dates back 67 million years, to a time just before the asteroid hit.

The new Argentine dino might give us clues to what the world was like before the asteroid wiped out their kind.

Did a collision with a giant asteroid or comet change the shape of life on Earth forever? It is widely agreed that such an object -- 10 kilometers across -- struck just off the coast of the ...

“But I wouldn’t read too much into these day-to-day variations ... scientist and associate professor at MIT. The asteroid that killed the dinosaurs was between 10 and 15 kilometers wide ...

The area was free from the deadly tsunamis and ash clouds brought on by the asteroid that hit near the Yucatán Peninsula of Mexico. A nearly-complete, 69million-year-old fossil of the long ...

Most modern bird fossils that had been unearthed at that point dated to after the dinosaur-killing asteroid struck off the coast ... While Vegavis resembled present-day waterfowl in some ways ...