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grandmothers
Gina,
In a very fascinating article in The Economist they speculated that humans are the only species where the female survives substantially beyond reproductive age is due to the importance to the species of the contribution made by grandmothers--including freeing up their daughters to have more energy to produce more grandchildren.
I have not contributed to the species by being either a mother or a grandmother, so who am I to contribute to this topic further?
Enough tonight for evolutionary thinking!
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