The power to generate fins. Variation of Appendage Generation.
- Fin Generation
- Retractable Fins
The user either has or can generate fins on their body.
- Animal Imitation
- Animal Morphing
- Appendage Generation
- Enhanced Balance
- Fish Physiology
- Reptilian Physiology
- Shark Physiology
- Sharkboy (The Adventures of Sharkboy and Lavagirl)
- Piscciss Volann (Ben 10 Series)
- Nanaue/King Shark (DC Comics)
- Iara dos Santos/Shark-Girl (Marvel Comics)
- Todd Arliss/Tiger Shark (Marvel Comics)
- Albakor (Marvel Comics)
- Squid-Boy (Marvel Comics)
- Experiment 602 "Sinker" (Lilo & Stitch)
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