66 million years ago, the end-Cretaceous extinction event ended the reign of the dinosaurs. We have performed coupled climate model simulations showing severe cooling due to sulfate aerosols from ...

Learn more about the massive predator that lived in Hell’s Aquarium during the late Cretaceous period.

Whether or not the asteroid or comet that carved the Chicxulub crater caused the extinction of more than half the planet's species at the end of the Cretaceous remains a matter of scientific debate.

You might know the Cretaceous Period for big animals such as Tyrannosaurus rex and Triceratops, or for being the end of the age of dinosaurs. But what was the world like in the millions of years ...