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Q&A What ecosystems and possible sentient creatures would form in subterranean pockets?

I am building a science fiction universe, and I am currently thinking of many different unique sentient alien species that would populate the galaxy. I have thought of a rocky planet with Earth le...

2 answers  ·  posted 7y ago by ntchapin‭  ·  last activity 7y ago by ntchapin‭

Question environment biology planets society chemistry xenobiology biochemistry