Paleontologists have discovered and documented 16,600 footprints left by theropods, the dinosaur group that includes the Tyrannosaurus rex.

WINONA, Minn. — It was a dinosaur that once roamed the Earth 66 million years ago, and now a big piece of it sits housed in a ...

Researchers have reclassified a long-misidentified fossil from New Mexico as Ahshiselsaurus wimani, a newly recognized giant duck-billed dinosaur that offers fresh insights into hadrosaur evolution ...

If you've ever seen a cut-down tree, you've noticed the rings that mark each year of growth. But those rings don't just show the tree's age. They show how fast the tree grew. A new study took this ...

Researchers have found that a 75-million-year-old fossil classified as a different dinosaur is a duck-billed species. The team named the newly identified species Ahshiselsaurus wimani as a nod to the ...

Theropods once trekked along a “dinosaur freeway” that stretched across a shoreline in what is now Bolivia, according to a new study.

No creatures ever stomped across the planet quite like the creatures scientists call sauropodomorphs. These long-necked plant eaters were the largest dinosaurs, and they included the mighty 70-ton ...

A worthy matchup of big teeth, little brains. Picture this: Two dinosaurs with massive teeth and hulking figures circle each other, threatening a smackdown. Each was the most successful predator of ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...

Researchers think they understand how some dinosaurs grew so large. NPR's Eyder Peralta talks with Michael D'Emic, paleontologist at Adelphi University. If you've ever seen a cut-down tree, you've ...