Around 165 million years ago on a coastal floodplain in what is now Morocco lived one of the most extreme dinosaurs on record, lavishly adorned with armor and spikes - some about three feet long - ...

Scientists are continuing to learn new things about the asteroid that wiped out the dinosaurs—and three-quarters of Earth’s other species—66 million years ago. According to research published in the ...

Scientists know dinosaurs ceased to exist at the end of the Cretaceous period, but the details surrounding their vanishing act are a bit fuzzy. Some computer models suggest that a volcano, not a ...