Fossils reveal dinosaurs were flourishing in diverse ecosystems right up until the asteroid impact ended their reign.

Dinosaurs weren't in decline when an asteroid smashed into Earth and wiped them out, scientists say. Instead, the idea that dinosaur diversity was declining before the asteroid struck 66 million years ...

Dinosaurs’ extinction “re-engineered” Earth’s surface, according to new research. The reptiles had such an “immense” impact on the planet that their sudden exit led to wide scale changes in landscapes ...

The Triassic-Jurassic Extinction Event: How Dinosaurs Took Over Roughly 201 million years ago, the Triassic-Jurassic extinction event wiped out about 76% of all marine and land species on Earth. This ...

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 ...

Rocks formed immediately before and after non-avian dinosaurs went extinct are strikingly different, and now, tens of millions of years later, scientists think they’ve identified the culprit—and it ...

A site in the San Juan Basin of northwestern New Mexico is providing a rare glimpse into the last days of the dinosaurs.Rocks and fossils at the Naashoibito Member site show an ecosystem that was ...

Dinosaurs appear to have been thriving before a giant asteroid hit the Earth 66 million years ago, paleontologists working in New Mexico said Thursday in the journal Science. Experts have long debated ...

When the big asteroid hit Mexico 66 million years ago, it set off wildfires, tsunamis and massive clouds of dust that darkened the skies, killed much of Earth’s plant life and triggered a chain of ...

So in one way, dinosaurs never went extinct; they just turned into birds. However, in the stricter sense of the word, dinosaurs had a whole combination of anatomical and behavioral characteristics ...