The Limpkin (Aramus guarauna) is a bird that looks like a large rail but is skeletally closer to cranes. It is the only extant species in the the family Aramidae. Its name derives from its seeming limp when it walks.

It is found mostly in wetlands in warm parts of the Americas, from Florida to northern Argentina. It feeds on molluscs, with the diet dominated by apple snails of the genus Pomacea. When a Limpkin finds an apple snail, it carries it to land or very shallow water and places it in mud, the opening facing up. It deftly removes the operculum or "lid" and extracts the snail, seldom breaking the shell. The orange-yellow yolk gland of female snails is usually shaken loose and not eaten. It often leaves piles of empty shells at favored spots.

Limpkins are largely nocturnal and crepuscular, except that in Florida refuges, where they do not fear people, they are active during the day. Even so, they are usually found near cover. Because of their long toes, they can stand on floating water plants. They also swim well, both as adults or as newly hatched chicks, but they seldom do so.