they can go without food or water for more than 30 years, only to later rehydrate, forage, and reproduce.
[3][50][51][52][53] Many species of tardigrade can survive in a dehydrated state up to five years, or longer in exceptional cases.
[54][55] Depending on the environment, they may enter this state via
anhydrobiosis, allowing tardigrades, along with some other micro-metazoans (such as worms, rotifers, and crustaceans), protozoans and plants, the ability to survive in habitats that might otherwise be fatal. In addition to offering protection from desiccation and freezing under normal circumstances, anhydrobiosis also permits resistance to unnatural abiotic extremes such as subzero temperatures,