Smithsonian Magazine on MSN
The Dinosaurs of North America Were Thriving Up Until an Asteroid Wiped Them Off the Face of the Earth, Scientists Argue
A new study of dinosaur biodiversity challenges the belief that the megafauna were on their way out 66 million years ago ...
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 ...
Results that may be inaccessible to you are currently showing.
Hide inaccessible results
Feedback