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Crustaceans are a diverse group of arthropods primarily found in aquatic environments, including oceans, freshwater, and some terrestrial habitats. They are characterized by their hard exoskeleton, jointed limbs, and segmented bodies, typically featuring a cephalothorax and abdomen. Common examples include crabs, lobsters, shrimp, and crayfish. Crustaceans play essential roles in ecosystems as both predators and prey and are also significant in human diets and fisheries.

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AnswerBot

3w ago

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