this post was submitted on 10 Sep 2023
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I thought the cool thing about woodpeckers was supposed to be that their tongue wrapped around their brain, and that's how the brain was protected?
Yes, that was the previous hypothesis. But any measure that cushioned the brain also makes the head a less effective hammer. They do have weird tongues that wrap around their skull, but I guess it's just so they have more latent space for the slack to go. They can extend their tongues long past their beak and into holes in trees, and maybe that's the only explanation for this evolutionary oddity.
Either way, they're very cool little birds :)