Quote:
Originally Posted by Nereidalbel
Breathable to us? No. For anoxic life? It was perfect!
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I've been playing with creating an alien anaerobic methanogenic PC species. Oxygen is powerful stuff, but looking around extant life, I found ways to increase their efficiency to just barely equal ectothermic animal life.
A very hot bright planet and daytime photosynthesis makes them quite competitive.