Someone turned off the power. Do you have the dinosaur smarts to make it out of this park alive?
A six-mile wide asteroid delivered the fatal blow to dinosaurs, who had already been struggling against a host of environmental threats. But what if the asteroid had missed Earth?
Climate change, changing sea levels, and volcanic activity severely undermined the environment for dinosaurs, even before a large impactor smashed into Earth, scientists say.
Fossils unearthed in Siberia of a plant-eating dinosaur suggests that feathers were common among the ancient reptiles.
Some 70 million years ago, a trio of tyrannosaurs walked together across a mud flat in what is today Canada, leaving behind tracks that support the theory that these giant predators hunted in packs.
Changyuraptor yangi, which had the longest feathers of any known dinosaur, lived in what is today modern China some 125 million years ago.
Researchers have described the largest 'four-winged' dinosaur known, gaining insights into how dinosaurs might have taken to the skies.
Herds of duck-billed dinosaurs in what is today Alaska's Denali National Park left behind 'one of the great track sites of the world.'
A new fossil of an early bird, Archaeopteryx, displays evidence of long feathers around the animal's legs, researchers say. But these feathers may not have been for flight.
Paleontologists in China have unearthed the first five intact, three-dimensional eggs of 100-million-year-old winged reptiles.
The Anzu wylieli lived at the same time as the T-Rex. It was 10 feet tall, feathered, and weighed about 500 pounds.