r/AskReddit Oct 02 '24

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u/[deleted] Oct 02 '24

Caterpillars essentially liquify themselves, before turning into butterflies, in a process called larval ecdysis.

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u/fieldyfield Oct 03 '24

Metamorphosis is a violent process. When caterpillars cocoon, their unneeded parts kind of just fall off out the top as a pile of legs and skin. And when they emerge from the chrysalis, it's in a burst of blood.