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The Impervious Woodpecker: Unveiling the Secrets behind Their Resilience to Concussions
2023/11/15 Report

Woodpeckers are known for their ability to drum on trees with their beaks at high speeds and with great force. This activity may seem like it would cause serious head injuries, similar to concussions in humans. However, woodpeckers have a unique adaptation that prevents them from getting concussions.

Contrary to popular belief, woodpeckers do not use their beaks as jackhammers or to excavate holes in trees. Instead, they drum their beaks against the surface of trees to communicate with other woodpeckers and to establish their territory.


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This drumming behavior can be incredibly forceful, with the woodpecker striking the tree trunk at speeds of up to 20 times per second and with a force of 1,200 times the force of gravity. This is equivalent to a human experiencing a force of 1,200 Gs, which would typically result in a concussion.

To understand how woodpeckers withstand such intense forces, a group of scientists conducted a study using high-speed cameras and force sensors.


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They discovered that while the woodpecker's beak does experience significant forces, it is not the main point of impact. Instead, the majority of the force is absorbed by three critical adaptations in the woodpecker's head and neck.

Firstly, a woodpecker has a unique skull structure, with a spongy bone layer located between its hard outer skull and its brain. This spongy bone acts as a cushion, absorbing and distributing the forces across the skull, reducing the direct impact on the brain.

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