About: Webbed foot

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The webbed foot is a specialized limb with interdigital membranes (webbings) that aids in aquatic locomotion, present in a variety of tetrapod vertebrates. This adaptation is primarily found in semiaquatic species, and has convergently evolved many times across vertebrate taxa.

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  • The webbed foot is a specialized limb with interdigital membranes (webbings) that aids in aquatic locomotion, present in a variety of tetrapod vertebrates. This adaptation is primarily found in semiaquatic species, and has convergently evolved many times across vertebrate taxa. It likely arose from mutations in developmental genes that normally cause tissue between the digits to apoptose. These mutations were beneficial to many semiaquatic animals because the increased surface area from the webbing allowed for more swimming propulsion and swimming efficiency, especially in surface swimmers. The webbed foot also has enabled other novel behaviors like escape responses and mating behaviors. A webbed foot may also be called a paddle to contrast it from a more hydrofoil-like flipper. (en)
  • 蹼（webbing）是一些四足类动物在前肢或后肢指间长有的皮膜，功能是增加划水时手掌或脚掌的截面积，让這些動物能更有效率的进行游泳。常見的有蹼動物有水鸟（特别是游禽，包括鴨、鵝、鸥类、企鵝等）、蛙类、水獺、鴨嘴獸等。 (zh)
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  • 蹼（webbing）是一些四足类动物在前肢或后肢指间长有的皮膜，功能是增加划水时手掌或脚掌的截面积，让這些動物能更有效率的进行游泳。常見的有蹼動物有水鸟（特别是游禽，包括鴨、鵝、鸥类、企鵝等）、蛙类、水獺、鴨嘴獸等。 (zh)
  • The webbed foot is a specialized limb with interdigital membranes (webbings) that aids in aquatic locomotion, present in a variety of tetrapod vertebrates. This adaptation is primarily found in semiaquatic species, and has convergently evolved many times across vertebrate taxa. (en)
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  • Webbed foot (en)
  • 蹼 (zh)
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