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

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Resource Type:
Image

Format:
Graphic

Topics Covered:
Adaptation and Natural Selection