Paleontologist Peter Makovicky is seen at the excavation site in Argentina's northern Patagonia region where fossils of the Cretaceous Period meat-eating dinosaur Meraxes gigas, Akiko Shinya via ...

Growling dinosaurs in Jurassic Park have instilled fear in generations of children. But would these giant reptiles be so scary if they didn’t growl at all, but chirped instead? Researchers in China ...