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The extinction of dinosaurs reshaped rivers, forests, and landscapes—changes still recorded in the rock layers across North America.

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 ...

We all know that the dinosaurs were wiped off the face of Earth by the mega asteroid that crashed over the Yucatan Peninsula over 60 million years ago. However, there is a long-standing debate that ...

Scientists discover there wasn’t just one asteroid which killed dinosaurs – after 66 million years - Evidence of a second ...

Around 66 million years ago, a 12-kilometre-wide asteroid travelling at 43,000 km/h crashed into Earth, triggering one of the ...

Reconstruction of a late Maastrichtian (~66 million years ago) palaeoenvironment in North America, where a floodplain is roamed by dinosaurs like Tyrannosaurus rex ...

Scientists know dinosaurs ceased to exist at the end of the Cretaceous period, but the details surrounding their vanishing act are a bit fuzzy. Some computer models suggest that a volcano, not a ...

Late Cretaceous dinosaurs may have cut back vegetation, creating large floodplains. When the asteroid hit, those floodplains ...

(CNN) — It’s a long-standing debate in paleontology: Were dinosaurs thriving when an asteroid hit Earth one fateful spring day 66 million years ago, or were they already on their way out, and the ...

The age of the dinosaurs ended 66 million years ago with the ultimate bad day, not a prolonged period of climate change wrought by volcanic activity, according to new research. The city-size asteroid ...