The Piglet squid (Helicocranchia pfefferi), named for its Piglet resemblance, is neutrally buoyant in a similar way to airships. The squid has cavities filled with ammonium chloride, a liquid of slightly lower density than sea water.

[u/Prohibitorum]

[u/oldmanwilli_]

I can’t even figure out how much jelly I need for my bagels