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Crustacean Facts

There are more 30,000 species of crustaceans in the world that make up the subphylum Crustacea. Some of these animals are regularly consumed by humans, and the majority of them are aquatic dwelling. Both familiar and bizarre, crustaceans are found throughout the globe.

  1. Identification

    • Crustaceans have a pair of antennae, a pair of mandibles, a segmented body, and two pairs of maxillae on the top of their heads.

    Geography

    • The majority of crustaceans live in saltwater oceans. However, some live in freshwater and a small variety live on land.

    Hunting

    • Most crustaceans hunt using their two front mandibles (claws), which vary in size depending on the species. Others feed on dead matter or filter plankton from the water.

    Types

    • Out of the many species of crustaceans, some of the more easy to recognize include crabs, lobsters, barnacles, crawfish, and krill.

    Growth

    • Some crustaceans are born resembling miniature adults and grow over time, while others have a larval stage called a nauplius.

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