this post was submitted on 13 Jun 2023
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I crave mental lint. What are some interesting facts that the hivemind (you) have stored away? (slrpnk.net)
submitted 1 year ago by Track_Shovel@slrpnk.net to c/chat@beehaw.org
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Bonus points for articles or links to said facts. I demand rabbit-holes to explore

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[–] neverbeenbretter@sh.itjust.works 5 points 1 year ago

Okay. Ever wonder why pigeons bob their heads? It's so that they can perceive depth. Animals with front facing eyes like ours can tell how near/far something is based on the angle formed by our eyes (called stereopsis). Pigeons, being side-eyed, don't have that option, so instead they compare the percieved size of things as they bob. Things that are closer will "grow" more than things that are far away.