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Q&A How can I alter humans to allow them the ability to choose the sex of their child in the ancient world?

Research shows that some creatures in the animal kingdom manipulate the sex of their child in order to maximize the number of grandchildren. Parents in good condition, based on health, size, domina...

4 answers  ·  posted 6y ago by Incognito‭  ·  last activity 6y ago by Incognito‭

Question biology reproduction history ancient-history science-fiction