When extremely dehydrated, the larvae of the fly Polypedilum vanderplanki replace water in their cellular fluids with a glassy substance, similar to melted sugar when it solidifies.
Kui surusääse Polypedilum vanderplanki vastne on kaotanud väga palju vett, asendub selle rakkudes vesi klaasja ainega, mis sarnaneb suhkruga, mis on pärast sulatamist tahkestunud.