First you write that 2 studies showed the grandmother effect in humans, but in your conclusion you write, there was no such thing detected.
To me the evolutionary benefit of grandmother´s care helping the offspring and thus increasing the overall fitness is not a "puzzle", but completely plausible and even obvious.
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Grandfathers, not grandmothers. There is no Grandfather Effect, that has been detected so far, except for the possible passing on of an inclination toward longevity if the grandfather is much older when a child is conceived
Grandmas rule :))
And, thank you very much for supporting my blog and for commenting. I love comments.
Oh, I see. My bad.
So are you saying, grandfathers are as useful as bee drones after reproduction? I am not (yet) a grandpa, you can be honest here :)
It appears so, but don't ask my granddaughter. She will tell you Opa is irreplaceable. And I agree :))