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Isn't this backwards a bit or did I get it wrong - not sure if I am phrasing this right. But to simplify from a laymen's perspective a reading of The Selfish Gene - all creatures will work to continue their genetic line unless misdirected as you describe. So if in some way continuing their genetic offspring is something that activates their opioid receptor, that's what we'll do, creating and raising offspring or as grandparents/cousins/aunts/uncles, helping raise relatives. This can be applied generally to all life on earth.

You ever think that cattle are exploiting humans to genetically propagate themselves more successfully than any other large mammal besides Humans?

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