Invertebrate animal (mollusk) with flat creeping foot, a one-piece shell, and a well-developed head
Land as well as water; on rocks, sandy or silty bottoms, and aquatic plants in either fresh or salt water
Fresh-water snails graze on algae, aquatic plants, detritus, and fungi. Some marine forms prey on other marine animals, including other mollusks.
Crustaceans, fish, birds, mammals
There are more than 35,000 species of snails.
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