An extremophile organism is one that can survive in environments that would kill most others. Such organisms have significantly increased tolerances across the board, but they also offer significantly less support to other species due to their inconvenient locations.
If you are not going to be paying a lot of attention to your world, and suspect you might accidentally let your world's stats get out of hand, this could be a good trait for you.
|Climate Adapted||Heat Adapted · Cold Adapted · High Pressure Adapted · Low Pressure Adapted · High Oxygen Adapted · Low Oxygen Adapted · Humidity Adapted · Aridity Adapted|
|Basic||Large · Small · High Metabolism · Low Metabolism · Exothermic · Domesticated · Beautiful · Poisonous · Invasive · Nocturnal · Delicate · Extremophile|
|Micro-Organisms only||Infectious · Nitrogen-Fixing · Airborne|
|Plants & Algae only||Cash-Crop · Fruit-Bearing · Deciduous · Photosynthetic · Flowering|
|Animals only||Social Behavior · Flying · Pair Bonding · Scavenger|