Question

How did they create dinosaur roars without ever hearing them?​

Answer 1

Answer:

In movies they created the sound to please the audience. Dinosaurs most likely may not have sounded like that. They most likely did not make a roar like a lion.

A crocodile croaking could be the closest sound those giant dinosaurs made, and may be with higher intensity.

Answer 2

Explanation:

it is just an imaginary.

they have closed mouth sounds