Dinosaurs lived millions of years ago. We know what they looked like, what they ate, how they hunted. But do we know what they sounded like? For example, just imagine how loudly the Meg growled, as it was really huge! What about some ancient birds? Did they sound similar to some farm birds, like duck and geese?

Scientists actually found out how some of the ancient creatures sounded. In this video we're gonna explore which sounds they could produce. We're gonna find out why Tyrannosaurus Rex's scream was similar to birds, not mammals.

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