Snails in captivity can live up to 25 years, although an average of 10 to 15 years is more common, while those in the wild live between 2 and 7 years depending on the species. Snails in the wild are at risk from predators, especially humans who enjoy eating a variety of snails.
Snails move slowly, being most active during the night. A snail's shell grows throughout its lifetime until it reaches adulthood. All snails are hermaphrodites and reproduce by self fertilizing their own eggs.
Snails are a good addition to any diet, but edible snails must be cleaned thoroughly. There is a risk of contracting meningitis from unclean snails that carry parasites.