Q What did a Stegosaurus do with the plates on its back when an enemy approached?

Q: What did a Stegosaurus do with the plates on its back when an enemy approached?

A.Clack them together to make a sound B.Flush them bright red C.Fold them down to the sides to protect its back

A Clack them together to make a sound
B Flush them bright red
C Fold them down to the sides to protect its back

Answer

B Flush them bright red

The surface of these plates was covered in a dense network of blood vessels.
It is believed that by pumping blood into these vessels, the dinosaur could change the color of its plates to bright red to startle and intimidate predators.
Recent research has revealed that it would have been anatomically difficult for them to clack the plates together or fold them down.

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