mollusks definition and examples

Earth Science: Invertebrates – Mollusks Mollusks (phylum Mollusca) are a diverse group of animals that include snails, mussels, clams, and cephalopods. Mollusks may live either in saltwater, freshwater, or on land. All mollusks have a unique structure called the radula, a rasping organ similar to a tongue for feeding, though many species have only a … Read more