Snails live in a range of moist environments that generally include areas with robust vegetation like temperate and tropical forests, as well as in aquatic habitats such as marshes, ponds and wetlands. There are 40,000 different species of snails that inhabit these areas around the world.
Aquatic dwelling snails can be found in both freshwater and saltwater regions. Some, like the stagnant pond snail, typically spend their days grazing the bottom of a pond for algae and other food sources. Land-dwelling snails are often found in gardens and field crops where vegetation is plentiful and can be readily consumed; because of this, snails are often problematic for farmers and efforts are made to expel the snails from this habitat.