The duck-billed dinosaur Parasaurolophus is distinctive for its prominent crest, which some scientists have suggested served as a kind of resonating chamber to produce low-frequency sounds. Nobody ...

For most people, the sound of a dinosaur is unmistakable:a deep, guttural roar that shakes the earth. That idea, planted by Jurassic Park in 1993 and echoed in countless documentaries, toys, and theme ...