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Dinosaurs disappeared 65 million years
, so we don't really know what they sounded like. Of course, there are many movies with dinosaurs making all kinds of
, screeches and screams. However, these noises are just
that movie directors make about how dinosaurs sounded. A new
has given scientists a better
of the kinds of sounds dinosaurs made. The scientists examined a rare
. It was from a spiky, armoured dinosaur called an ankylosaur. The fossil is around 78 million years old. It includes a
of the ankylosaur's voice box. It is the world's
fossil of a voice box. The scientists believe the
of the creature's voice box means it
made bird-like sounds.
