The Parasaurolophus is a duck-billed dinosaur with a unique crest that lived 70 million to 80 million years ago. It stood around 16 feet tall and is estimated to have weighed 6,000 to 8,000 pounds.

Experts suggest dinosaurs likely made cooing or humming sounds. A study simulated Parasaurolophus sounds, describing them as otherworldly. Scientists analyzed archosaur vocalizations, finding ...