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Woodpeckers’ heads act more like stiff hammers than safety helmets
Woodpeckers' heads act more like stiff hammers than safety helmets,Scientists had long wondered how woodpeckers can repeatedly pound their beaks against tree trunks without doing damage to their brains. This led to

Woodpeckers’ heads act more like stiff hammers than safety helmets

Scientists had long wondered how woodpeckers can repeatedly pound their beaks against tree trunks without doing damage to their brains. This led to