@WSJ The GMH doesn't argue that! That's an all cats are yellow interpretation! I agree tho, the genetic delta of the 2 GMs is intriguing!
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@WSJ: The "grandmother hypothesis" argues that old women provide the key to human evolution: http://on.wsj.com/1saOPlj ” yes for GranmaThanks. Twitter will use this to make your timeline better. UndoUndo
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@WSJ not new information!Thanks. Twitter will use this to make your timeline better. UndoUndo
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@KyleLundstedt Thanks, Kyle. Spark for that:@Betsy_Mitchell sending me Velma Wallis's book Two Old Women + some terrific great aunts.
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“
@WSJ: The "grandmother hypothesis" argues that old women provide the key to human evolution: http://on.wsj.com/1saOPlj ” gran-power.#ls462Thanks. Twitter will use this to make your timeline better. UndoUndo
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@WSJ Interesting...Thanks. Twitter will use this to make your timeline better. UndoUndo
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