paleontology

9-Million-Year-Old Capybara Tooth Found in Atacama Desert Rewrites Region's Climate History

Paleontologists discovered a fossilized tooth from an ancient capybara relative in Chile's Atacama Desert, providing the strongest evidence yet that the world's driest region was once covered in grasslands and water.

Raptor Tooth Marks on 75-Million-Year-Old Dinosaur Bones Reveal Scavenging of an Apex Predator

Paleontologists in Alberta found tooth marks from a small raptor on the bones of a large carnivorous dinosaur, suggesting the smaller predator scavenged or fed on a much larger apex predator roughly 75 million years ago.