This does mimic, in nature, what we would see with a pupa or a chrysalis, in which the caterpillar actually creates a hard outer shell around itself, and the material of the caterpillar's body actually turns into a broth before it reconstitutes into what ultimately emerges as a butterfly.
Se on toisinto koteloitumisesta jossa toukka luo ympärilleen kovan kuoren ja muuttaa ruumiinsa liemeksi josta syntyy kaunis perhonen.