Dinosaurs near Washington, D.C. (long-necked Astrodon johnstoni) left behind a trove of fossils overseen by Matthew Carrano. Patrick O'Brien Last november, at the recently opened Dinosaur Park south ...

The Smithsonian’s National Museum of Natural History says it will display a rare and “remarkable” dinosaur skull that was unearthed in South Dakota. The well-preserved Pachycephalosaurus skull was ...

WASHINGTON – When a dinosaur nicknamed “Hatcher” was cobbled together a century ago, he was the first triceratops the world had seen in 66 million years. And he looked the worse for it. The ...

The Smithsonian's National Museum of Natural History revealed a newly discovered dinosaur species Monday — one that shows how the Tyrannosaurus rex evolved to become a top predator. The new species, ...

Dinosaurs are often thought of as aggressors—giant beasts that dominated our planet for millions of years. But these prehistoric animals almost certainly had a softer side. In the last decade, ...

Since the first scientific recognition of dinosaur fossils in the early 19th century, these animals have captivated our attention. How could the same planet that we call home have produced such ...

Left lateral view of the Pachycephalosaurus skull, from the Late Cretaceous. “This skull is by far the most spectacular specimen of this type of dinosaur that we have at the museum,” said Matthew ...

Billionaire industrialist David Koch has pledged $35-million to the Smithsonian Institution to fund a makeover of the National Museum of Natural History’s dinosaur hall, says The Washington Post. The ...