Not only that but it's possible that life surviving in the presence of oxygen might be a rare occurrence as far as life goes. One of the reasons terrestrial lif

Not only that but it's possible that life surviving in the presence of oxygen might be a rare occurrence as far as life goes. One of the reasons terrestrial life is mostly aerobic might be because we're all the very few survivers of the Great Oxygenation Event which killed almost all the life on earth. If something like that didn't happen in the history of evolution in other planets, they might not have evolved to ingest oxygen.