Dinosaurs appear to have been thriving before a giant asteroid hit the Earth 66 million years ago, paleontologists working in ...

Dinosaurs weren’t dying out before the asteroid hit—they were thriving in vibrant, diverse habitats across North America.

A new study of dinosaur biodiversity challenges the belief that the megafauna were on their way out 66 million years ago ...

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, ...

New research suggests that dinosaur populations were thriving in North America before the asteroid impact 66 million years ...

Newly dated fossils from New Mexico challenge the idea that dinosaurs were in decline—and suggest instead they had formed ...

The end of the dinosaurs was clearly linked to an asteroid impact that brought the Cretaceous period to a close. But the ...

New dating of New Mexico rocks suggest diverse dinosaurs thrived there just before the impact, countering the idea dinos were already on their way out.

A fresh analysis of a site in New Mexico provides a glimpse into the final days of the dinosaurs, showing their diversity before going extinct.

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 Yucatan ...

New dating has revealed that New Mexico's last dinosaurs were healthy, diverse and thriving at the end of the Cretaceous ...