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========== Wood is tough stuff, which is why we use it
to hold up houses and trees use it to holdup themselves.If you’ve ever swung an axe against a
tree, you know chipping away wood takes alot of force.Now imagine chipping away that wood with your
face.That’s what it’s like to be a woodpecker.Hammering a tree, 20 times a second, ten thousand
times a day… face-first.The force of a peck is like as headbutting
a tree at full sprint, which you should nottry at home.So why don’t woodpeckers get concussions?And if they did, what would they see flying
around their head?[OPEN]They say it’s not the fall that kills you,
it’s the sudden stop at the end.Anyone who’s ever watched a crash test video
knows that when the car stops moving, thebodies inside it don’t.This is basicall...