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Q&A What could cause infertility between humans living in gravity and humans in space? How could that cause speciation?

Concerning long term effects of zero gravity on humans living in space compared with those living on super earths with 1.5x to 2x G, how could the gravity differences cause reproductive failure amo...

6 answers  ·  posted 10y ago by Ansible‭  ·  last activity 9y ago by Ansible‭

Question evolution humans gravity zero-gravity