Snails are in the Mollusk family and more specifically Gastropods. There are many kinds some that live in water and others on dry land. They don't do well in desert conditions. They do need a moist or wet environment. read more
The name is most often applied to land snails, terrestrial pulmonate gastropod molluscs. However, the common name snail is also used for most of the members of the molluscan class Gastropoda that have a coiled shell that is large enough for the animal to retract completely into. read more