the mangrove killfish, lives in South American and southern US coastal swamps that can either dry up or become so toxic that the fish has to find refuge in the mud or by flipping and jumping across land. Amazingly, its skin and gills change so the killfish can breathe air and survive out of the water for as long as ten weeks.
Karen Shanor, Bats Sing, Mice Giggle: The Surprising Science of Animals' Inner Lives
animals