So if dinosaurs did sound like an ultra-low-pitched crocodilian, a lot of their sounds could have been hard to hear. Just as infrared light is too long of a wavelength for a human to usually see, infrasound waves vibrate so slowly that it can be hard for a human to hear. “They’re shaking the pond, basically.”Īs the pitch drops further, it approaches the range known as infrasound. “They’ll rumble so powerfully that you see ripples all around them on the water,” says Habib of crocodilians. rexes are more like crocodilians, they probably would have made more of a low-pitched, closed-mouth rumble. If you watch Jurassic Park, you’ll see a T. One such related group is crocodilians (crocodiles, alligators, caimans), who share a common ancestor with dinosaurs that lived around 250 million years ago. If they share a common ancestor, they may have similar attributes as well, like how they make sound. Scientists can look to living relatives of dinosaurs to reconstruct their sounds.
“We have to do the best we can,” Habib says, with the clues scientists have. In order to figure out what an actual dinosaur voice may have sounded like, scientists can look to dinosaur relatives that are still alive. But this chamber doesn’t tell us about the actual dinosaur voice that fed into it. Ducky from The Land Before Time), had a long chamber in its skull, which allowed scientists to estimate the general frequencies that could have resonated within its head. One dinosaur, called parasaurolophus (a.k.a. To start, the shapes of dinosaur skeletons do provide some hints. Figuring out what dinosaurs sounded like means understanding the world they lived in a bit better, and is a key to understanding how they behaved.
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