An animal with ten legs or limbs, especially crustaceans like crabs, lobsters, and shrimp.
From Greek 'deca' (ten) and 'pous' (foot). The term was coined in the late 1700s to classify crustaceans with ten walking legs, combining the classical prefix with the body part.
The decapod group includes some of Earth's most economically important seafood—shrimp alone are worth billions in global trade. Interestingly, what we call the 'tail' on a lobster is actually a fan-shaped abdomen, not a true tail!
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