A three-toed footprint appeared in the rock, slightly longer than my hiking boot. The outlines weren’t crisp, but the impression was deep enough to collect sand grains and pebbles. This impression is ...

A brief history of dinosaur paleontology / by Michael Benton -- Digging them up / by Daniel J. Chure -- Noses, lungs, and guts / by Guy Leahy -- Dinosaur biomechanics / by Per Christiansen -- ...

(CNN) — About 100 million years ago in what is now Utah, a 10-foot-long (3-meter-long) cousin of duck-billed dinosaurs pulverized tough plant stems and leaves with its robust teeth and powerful jaws.

Add Yahoo as a preferred source to see more of our stories on Google. For generations, dinosaurs have captivated the human imagination. However, the precise origins and early spread of these ancient ...

NEW YORK — The American Museum of Natural History (AMNH) in New York City has opened a new exhibition that takes a multidisciplinary perspective on the asteroid strike that ended the Cretaceous period ...

EDITOR’S NOTE: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. About 100 million years ago in what is ...