The idea that dinosaurs were already declining well before the asteroid impact 66 million years ago seems established.

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

A single asteroid descended without warning to end the reign of dinosaurs, at the peak of their size and strength. It's too cinematic an image, too archetypal a story, to possibly be true, isn't it?

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 ...

The impact of the asteroid 66 million years ago did not stop life from returning to normal for very long. New research shows ...

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