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 revealed a newly discovered dinosaur species Monday — one that shows how the Tyrannosaurus rex evolved to become a top predator. The new species, ...

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 ...

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 ...