Dinosaurs

New research points to when massive asteroid impact happened, and why only some animals survived.
Charles Q. Choi, Contributor
Ancient 2-meter tall theropods could have outrun most humans.
Joshua Learn, Contributor
The flying reptile was among hundreds of fossils recovered by police in 2013.
James Gaines, Contributor
A fossil skull from a bird that lived in the time of dinosaurs sheds light on how the ancestors of modern birds escaped extinction.
Nala Rogers, Staff Writer
The ancient dinosaur ancestor likely ate the newly described species by accident.
Joshua Learn, Contributor
The new species unearthed in Patagonia belongs to a group called abelisaurids, which resembled tyrannosaurs with short, bumpy faces.
Charles Q. Choi, Contributor
Finding suggests "megapredators" may have been more common in Mesozoic Era than previously thought.
Charles Q. Choi, Contributor
Prehistoric remains also reveal signs of a particularly large predator.
Joshua Learn, Contributor
Long legs didn't make the massive predators faster but helped save energy during the daily grind, new research suggests.
Charles Q. Choi, Contributor
Fossil shows that miniature dinosaurs likely shared the earth with giants during the Mesozoic Era.
Charles Q. Choi, Contributor
The parasites were found on preserved dinosaur feathers from almost 100 million years ago.
Charles Q. Choi, Contributor
Corral Bluffs location contains fossils from a critical time in the evolution of mammals.
Charles Q. Choi, Contributor