Tuesday, April 10, 2012

Did You Know: Woodpeckers with Air Pockets in their Skulls How is it that woodpeckers don’t get brain damage from banging their beaks on hard surfaces all day long? Like all birds, woodpeckers have very complex skulls full of tiny, very lightweight bones; the skull of an average bird weighs just 1% of the bird’s body weight. The woodpecker has a built-in protective mechanism that cushions the brain from the jolts of its activities: air pockets. Photo: images via: mike baird)