A woodpecker's head can experience up to 100 g's of force during impact, a force deadly to humans. All of the following features help woodpeckers prevent concussions or other serious brain injuries when pecking EXCEPT one? Which one is NOT a brain-saving feature?

Answer A highly compressible beak

A woodpecker's beak is fairly rigid and not able to compress on impact. All the others are features of woodpeckers that help save their brains.

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