Everyone knows that dinosaurs are extinct, and most people have some idea about how it might have occurred. But the exact periods in history when it happened are less well known. Was it a single ...

Yale University ecologists reveal a lizard lineage that rode out the dinosaur-killing asteroid event with unexpected evolutionary survival traits. Night lizards (family Xantusiidae) survived the ...

Around 66 million years ago, Earth endured a mass extinction event that marked the end of the Cretaceous and the start of the Paleogene period. Roughly 75% of all species vanished, including every non ...

The Cretaceous–Paleogene (K–Pg) mass extinction event, marking the boundary between the Cretaceous and Paleogene periods approximately 66 million years ago, stands as one of the most profound ...

Several species of horned dinosaurs were discovered in the monument. Their skulls adorn one wall of the Big Water exhibit. (Allie Weintraub/CNS) (CN) — A new study published Thursday in the academic ...

Add Yahoo as a preferred source to see more of our stories on Google. A single asteroid descended without warning to end the reign of dinosaurs, at the peak of their size and strength. It's too ...

WACO, Texas — A new study published on Thursday, co-authored by researchers from Baylor University, New Mexico State University, the Smithsonian Institution and several international collaborators, ...

Roughly 66 million years ago, an asteroid some 6-9 miles in diameter slammed into the Yucatan peninsula. Researchers have a fairly good idea what happened next. The impact delivered roughly the same ...

A meteorite hit Earth about 66 million years ago near what today is the Yucatán peninsula, causing widespread destruction and death. But almost simultaneously, intense volcanism covered a vast area of ...