How much different would society be if sex ratios at birth were heavily skewed (say at least 2:1) in one direction or the other?
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monogamy is definitely a lot more conditional than people realize. There are still places in the world today where various forms of polygamy are practicedhttps://www.scmp.com/news/asia/article/1048903/brothers-sharing-wife-aids-survival-nepalese-villages …
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