+Fins are elegant appendages, often thin and flat, designed to interact with fluid. They serve as essential structures for [Propulsion](/wiki/propulsion) and [Stability](/wiki/stability), enabling movement and control through water or air for countless organisms and vehicles.
+## See also
+- [Fish](/wiki/fish)
+- [Swimming](/wiki/swimming)
+- [Aquatic Life](/wiki/aquatic_life)
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