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Rigorous Science How Efficient Could Anaerobic Megafauna Be?

Obviously, if available, atmospheric oxygen is a great source of energy. However, I'm surely not the first worldbuilder who wants an alien species which doesn't depend on it (whether due to having ...

2 answers  ·  posted 5y ago by vicky_molokh‭  ·  last activity 5y ago by vicky_molokh‭

Question biology energy xenobiology biochemistry