Do you have a dumb question that you're kind of embarrassed to ask in the main thread? Is there something you're just not sure about?
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Notes -
We know this isn't true because fertility is about 30% heritable, which means there has to be some genotypes that increase fertility unless the studies that have found this result are wrong.
More important than sexual desire is probably just liking children. There are genes for liking being around taking care of children, as anyone who has seen a young woman around small children knows.
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