Despite what the movies tell us, dinosaurs probably didn't roar at their prey. It's more likely that they chirped like birds, based on a well-preserved new fossil with an intact voice box. A team of ...

In northeastern China, researchers have found the fossil of a small dinosaur preserved in 163-million-year-old sandstone. At just 28 inches long, Pulaosaurus qinglong wasn’t much of a fighter—but a ...