The Triassic-Jurassic Extinction Event: How Dinosaurs Took Over Roughly 201 million years ago, the Triassic-Jurassic extinction event wiped out about 76% of all marine and land species on Earth. This ...

Did all dinosaurs become extinct, killed when an asteroid hit the Earth 66 million years ago? Or could a few of them, somehow, have survived that mass extinction event – with their descendants living ...

Human activity may be triggering the greatest extinction event since the asteroid impact that wiped out the dinosaurs, according to scientists. Their study, based on a review of decades of research on ...

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, ...

Some of their dinosaur-like traits are their bone structure, strong leg muscles for bipedal walking, sharp claws, and the ability to defend themselves by kicking. The Triassic-Jurassic Extinction ...