Lobsters are classified as invertebrates. Invertebrates are animals that lack a vertebral column or backbone. Instead of having an internal skeleton like vertebrates, lobsters and other invertebrates have an exoskeleton, which is a hard external covering that provides support and protection. Lobsters belong to the phylum Arthropoda, which includes animals with jointed limbs and segmented bodies, such as insects, spiders, and crustaceans.
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