Fossils reveal dinosaurs were flourishing in diverse ecosystems right up until the asteroid impact ended their reign. Their abrupt extinction reshaped Earth’s ecosystems and set the stage for mammals ...

For a long time, the prevailing theory was that dinosaurs were already in decline before the Chicxulub asteroid struck Earth approximately 66 million years ago, leading to the extinction of about 70% ...

For decades, dinosaurs were thought to be permanently lost to time, but new genetic experiments suggest that assumption may ...

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, causing mass extinction. New research suggests dinosaur populations were still ...

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 ...

The evolution of life on planet Earth has occurred gradually over time, but it has not always been a peaceful process. Life has had to face cataclysmic environmental changes, and sometimes that ...