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Q&A Xenobiology of extraterrestrial parasitic superorganism

I'm looking to devise an extraterrestrial parasitic organism that perpetuates itself by infecting entire stellar biospheres before moving on to colonize other inhabited star systems. This organism ...

5 answers  ·  posted 8y ago by Christopher Costello‭  ·  last activity 6y ago by Christopher Costello‭

Question biology xenobiology