Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 million to 230 million years ago in the Triassic Period, and went extinct ...

We know the main reason that the age of the dinosaurs came to an end: an asteroid impact on the Yucatán Peninsula some 66 million years ago. But how the dinosaurs’ reign began is far less clear—and ...

The juvenile dinosaur is so well preserved that its individual cells can still be identified under a microscope.

To sort the earliest branches of the dinosaur family tree, paleontologists compare skeletons piece by piece. They build ...

About 66 million years ago, a herd of herbivorous dinosaurs succumbed to drought – tragically, just hours or days before heavy rains fell. We know this because they left some of the most incredibly ...

"First published in Australia by NewSouth, an imprint of the University of New South Wales Press, Ltd."--Title page verso. "The discovery of stunning, feathered dinosaur fossils coming out of China ...

Had a volcano-driven mass extinction not occurred at the end of the Triassic 201 million years ago, we likely would have had something closer to an Age of Crocodiles than the Age of Dinosaurs that ...

Kristi Curry Rogers receives funding from The National Science Foundation and the David B. Jones Foundation. It may be hard to imagine, but once upon a time, dinosaurs didn’t dominate their world.

The earliest dinosaurs had rapid growth rates, but so did many of the other animals living alongside them, according to a new study. The earliest dinosaurs had rapid growth rates, but so did many of ...

Add Yahoo as a preferred source to see more of our stories on Google. Where they lived: Dinosaur fossils have been found on every continent, including Antarctica. What they ate: Some ate plants, while ...