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submitted 1 month ago by fossilesque@mander.xyz to c/science_memes@mander.xyz
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[-] smh@slrpnk.net 3 points 1 month ago

I'm trying to square my instinct that

  1. snails aren't bugs (because they're squishy without the shell) with the feeling that
  2. crabs are bugs (because they'd go tap-tap if you tapped on their exoskeleton with a finger) but
  3. hermit crabs aren't bugs if they're in a shell but are bugs if they're naked
[-] agamemnonymous@sh.itjust.works 3 points 1 month ago

Snail shells aren't chitinous.

Crab shells are chitinous.

Hermit crabs are only partly chitinous, and the shells they use are not chitinous.

Hope that helps

this post was submitted on 15 Dec 2025
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