New AI-powered research questions whether a majority of Earth’s mass extinctions were as abrupt as previously believed.

Add Yahoo as a preferred source to see more of our stories on Google. On the final day of the Cretaceous period, some 66 million years ago, Earth was teeming with a dazzling variety of dinosaurs. In ...

・Shell-forming plankton underwent the second-worst mass extinction on record 113 million years ago. ・The cause of this extinction has been traced for the first time to ocean acidification caused by an ...

Researchers suggest that ground-based mammals fared better than their arboreal relatives during the end-Cretaceous extinction thanks to their lifestyle. Reading time 2 minutes The end-Cretaceous ...

Sixty-six million years ago, at the end of the Cretaceous Period, an asteroid impact near the Yucatán Peninsula of Mexico triggered the extinction of all known non-bird dinosaurs. But for the early ...

A 113-million-year-old marine murder mystery may finally be solved. Using chemical clues locked inside microscopic fossils, Northwestern University scientists found evidence that ocean acidification ...

Learn how egg size may help explain why ammonites didn’t survive the end-Cretaceous extinction 66 million years ago, while their relatives, the nautiloids, did. Life in the ancient oceans wasn’t easy, ...

Utah Geological Survey Announces Excavation of Historic Cretaceous Dinosaur Bonebed, Shedding Light on End-Jurassic Mass Extinction ...

A remarkably diverse fossil ecosystem in central Colombia that preserves an unusual overlap between survivors of older ...

The Late Cretaceous modern (crown) bird,Vegavis iaai, pursuit diving for fish in the shallow ocean off the coast of the Antarctic peninsula, with ammonites and plesiosaurs forcompany. Sixty-six ...