Some scientists speculate that the dinosaur’s crest and nasal cavities functioned as sound resonators that helped them vocalize. When the species was alive over 75 million years ago, they grew to be ...

In an effort to resurrect the sounds of prehistoric life ... as a resonance chamber to amplify the dinosaur's vocalizations, potentially facilitating long-distance communication.

Dinosaur movies ... functioned as sound resonators that helped them vocalize. When the species was alive over 75 million years ago, they grew to be about 26 to 30 feet long. The models for ...