Q What was inside the long crest on Parasaurolophus’s head?
- A It was filled with solid bone
- B It was hollow, like a pipe
- C It inflated with air like a balloon
A It was filled with solid bone
The crest of Parasaurolophus was hollow inside.
The structure of this cavity was very similar to a wind instrument, and it is believed that exhaling air through its nose produced a loud, low-pitched sound.
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