how have small tribes ensured or maintained genetic diversity?
In: Biology
They don’t really. cousin marriage is traditional in lots of places. I don’t think anyone really likes incest, it’s not good, but the risks of it are exaggerated (because it’s gross). It doesn’t generate new defects out of nothing. So small populations kinda just end up with the problems they end up with generation after generation and if they aren’t fatal the first time they continue to be not fatal going forward.
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