The power to use the abilities of heavyworlder. Variation of Alien Physiology. Opposite of Lightworlder Physiology.

Also Called

  • High-Gravity Physiology


The user possesses an enhanced physiology suited for high-gravity environments; as a result, their physical capabilities are greatly enhanced.





  • May end up adapting to alien planet, losing their effectiveness.
    • Adapting to a planet with lower-gravity may lead to harm on the user's body should they return.
  • May have to have lived on heavy-world for a long period of time regardless of genetics.

Known Users

See Also: Heavyworlder.

  • Heavyworlders (Andromeda)
  • Chee (Animorphs)
  • Pemalites (Animorphs)
  • Kryptonians (DC Comics)
  • Tom Strong (DC Comics)
  • Sontarans (Doctor Who)
  • Saiyans (Dragon Ball series)
  • Zoon-seijins (Dragon Ball series)
  • John Carter (John Carter)
  • Jovians (Marvel Comics)
  • Elcor (Mass Effect)
  • Samus Aran (Metroid)
  • Makoto Misumi (Moon Led Journey Across Another World)
  • Alicia (Sekainohate de Aimashou)
  • Vulcans (Star Trek)


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