An analysis of North America’s fossil record for the 18 million years before dinosaurs disappeared suggests the prehistoric ...

A new study found dinosaurs were thriving on Earth before asteroid hit, challenging idea they were already in decline before ...

Dinosaur extinction theories suggest populations were dwindling when an asteroid wiped them out. New research is challenging ...

Recent research conducted by the University of Bristol hypothesizes that mammals started to adapt to a more ground-oriented ...

Researchers suggest that ground-based mammals fared better than their arboreal relatives during the end-Cretaceous extinction ...

The dinosaurs were not in decline before the asteroid hit, a new study finds. Instead, poor fossilization conditions and ...

The number of dinosaurs may have been stable before the asteroid impact, despite evidence that species were getting less ...

The idea that dinosaurs were already in decline before an asteroid wiped most of them out 66 million years ago may be ...

Dinosaurs may not have been declining before the asteroid impact after all – new research shows that the apparent drop in ...

The most significant asteroid so far to hit Earth was 66 million years ago. The mountain-size asteroid struck South America ...

(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 ...

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