Appendage
부속지
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<speciesfyi-glossary slug="appendage"></speciesfyi-glossary>Definition
A body part projecting from the main body, such as a limb, wing, fin, or antenna.
Detailed Explanation
Appendages have been modified by evolution into an extraordinary array of forms: forelimbs became wings in birds and bats, flippers in cetaceans, and digging tools in moles. Arthropod appendages have been co-opted for feeding (mandibles), sensing (antennae), reproduction (gonopods), and locomotion. The evolutionary flexibility of appendages is a key reason arthropods and vertebrates dominate animal diversity.