Forced to spend their days slamming their tiny skulls into the sides of trees in search of buried morsels, woodpeckers should have evolved a trick or two to avoid brain damage. So you'd think.
the birds may suffer the effects of a lifetime of head-banging, simulations carried out by Van Wassenbergh and his team on the intracranial pressure of the woodpecker's skull suggest the constant pushing and shoving on such small brains doesn't amount to anything serious, anyway.
"The absence of shock absorption does not mean their brains are in danger during the seemingly violent impacts,""Even the strongest shocks from the over 100 pecks that were analyzed should still be safe for the woodpeckers' brains as our calculations showed brain loadings that are lower than that of humans suffering a concussion."than around half a meter in length.
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