Weakening selection for a trait isn't same as selection for lower values of a trait (as with "too stupid to use contraception => more children"). I think SMV is still selected and I think immune system somehow influences SMV.
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Notes -
Weakening selection for a trait isn't same as selection for lower values of a trait (as with "too stupid to use contraception => more children"). I think SMV is still selected and I think immune system somehow influences SMV.
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