Dinosaurs Probably Didn’t Roar, But Some Definitely Quacked

(via Popular Mechanics) Everyone knows the sound of Jurassic Park‘s T-Rex roar, that horrifically effective combination of a baby elephant, alligator, and tiger. Whatever its scientific inaccuracy, it quickly become the bone-chilling soundtrack for these giants that used to walk the earth. But new research from UT Austin continues to suggest that dinosaurs likely didn’t roar, and at least some quacked like modern ducks.