The brain is wide open, very enlightening.
First, I thought of whether Mars had intelligent life before, and then a zombie virus broke out, and all creatures were extinct, or the whole immigrated to other planets, but the virus did not die. Until the people on earth come...
These astronaut zombies are left unattended on Mars, will they slowly evolve into new species? Become a kind of alien...
Are people on earth descended from ancient Martian immigrants?
Or life on earth evolved from similar alien leftover "zombies"...
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