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 ...

Sixty-six million years ago, an asteroid as big as Mount Everest was headed on a deadly collision course with Earth. The ...

There might still be dinosaurs living on Earth today — if not for the giant asteroid. It’s a long-debated issue, but now researchers say the idea Dinosaurs were in decline before the Chicxulub ...

A newly described dinosaur that appears to have persisted beyond a catastrophic die-off is forcing scientists to rethink how mass extinctions actually play out on the ground. Instead of a clean break ...

While volcanism caused a temporary cold period, the effects had already worn off thousands of years before the meteorite, the ultimate cause of the dinosaur extinction event, impacted. Massive ...

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Human activity may be triggering the greatest extinction event since the asteroid impact that wiped out the dinosaurs, according to scientists. Their study, based on a review of decades of research on ...