How Grandmas May Give Kids an Evolutionary Edge. Absolutely fascinating: XY v.s. XX chromosomes mean that paternal grandmothers have a 50% chance of sharing an X with their son’s daughters, but a 0% chance of sharing an X with their son’s sons. A study on survival rates of 43,000 children found a corresponding correlation with the proximity to a paternal or maternal grandmother. Men: Dad’s Mum is out to get you!
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Surely you meant "paternal grandmothers"…?
Yes I did, fixed - thanks.
What a tease! Did you really just link to a Newsweek article? -- did I really read it?!
Fascinating though too shy on details, or links to additional information. I guess that is what is to be expected from Newsweek.
I'm particularly interested in what the survival rates have been for most recent generations, and how these are calculated.
Lloyd Budd - 21st November 2009 04:09 - #