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How the Woodpecker Avoids a Headache

This diagram details the specialized functions and structures that allow a woodpecker to live off insects burrowed in trees. Included are a strong beak, highly developed neck and tongue muscles, stiff feathers sized for stability, sturdy leg bones and skull, a curving spine, and a reversed toe.

Credits: Rainbird Publishing

How the Woodpecker Avoids a Headache

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Topics Covered:
Adaptation and Natural Selection

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