Among today’s birds, the species most closely resembling their dinosaur ancestors are large, flightless ground-dwellers like ostriches, emus (pictured above), cassowaries, rheas, and kiwis. Some of ...

couple of Brachiosaurus altithorax and a flock of Pterosaurs in a scenic Late Jurassic landscape© dottedhippo/iStock via Getty Images The Jurassic Period is one of the three prehistoric geological ...

Explore the events surrounding the mass extinction of the dinosaurs, focusing on the cataclysmic incident that changed life on Earth. This video delves into the theories about why the dinosaurs died, ...

Rocks formed immediately before and after non-avian dinosaurs went extinct are strikingly different, and now, tens of millions of years later, scientists think they’ve identified the culprit—and it ...

It had quite an impact — striking with the force of 10 million atomic bombs. Sixty-six million years ago, the asteroid that slammed into what is now the Yucatán Peninsula caused a mass extinction ...

Learn more about what fossilized teeth can tell us about the rise of mammals after the extinction of dinosaurs.

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, ...

More mammals were living on the ground several million years before the mass extinction event that wiped out the dinosaurs, new research led by the University of Bristol has revealed. The study, ...

An asteroid strike 66 million years ago caused millions of species to go extinct—including many mollusks. By studying the impacts of this ancient event, scientists hope to ensure that mussels, ...