Extremophile
A rather chauvinistic term for any biological organism, whether Terragen or xenobiont, natural or tweaked, that requires extreme (non-Earthlike) environments for growth or metabolism; e.g. high temperature, acidity, pressure, radiation, toxic compounds, vacuum or near-vacuum, etc. There are extremophile sophont clades in the Terragen Sphere which inhabit cold temperature worlds, high temperature worlds, hi-radiation worlds, vacuum environments, and other environments which would would be fatal to nearbaseline humans.
 
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  • Acidophile - Text by M. Alan Kazlev
    An organism with a pH optimum for growth at, or below, pH 3. A type of extremophile.
  • Alkaliphile - Text by M. Alan Kazlev
    An organism with optimal growth at pH values above 10. A type of extremophile.
  • Barophile - Text by M. Alan Kazlev
    An organism that lives optimally at high hydrostatic pressure. A type of extremophile.
  • Halophile - Text by M. Alan Kazlev
    An organism requiring high concentrations of salt for growth or optimal metabolism. A type of extremophile.
  • Hyperthermophile - Text by M. Alan Kazlev
    An organism having a growth temperature optimum of 80°C or higher. A type of extremophile.
  • Psychrophile - Text by M. Alan Kazlev
    An organism that requires or prefers cold for growth and metabolism. A type of extremophile. Common on some Europan planets and moons; in rare instances even evolve an intelligent star-faring civilization (the Muuh being the only known current example).
 
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Development Notes
Text by M. Alan Kazlev

Initially published on 24 October 2001.