Snails, conchs, whelks, and many other similar animals with shells are all called gastropods by scientists. The word gastropod comes from Greek and means stomach foot, a name that owes its existence to the unusual anatomy of snails. Snails have a broad flat muscular foot used for support and for forward movement. This foot runs along the underside of the animal-essentially along its belly. The Greek elements gastro-, stomach, and -pod, foot, are found in many other scientific names, such as gastritis (an inflammation of the stomach) and sauropod (lizard foot, a type of dinosaur).

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