Frequent-Seaweed4 t1_ivcb6wr wrote
Reply to comment by Applejuiceinthehall in TIL that most non-human primate infants actively use their hands to help themselves out of the birth canal. Human infants do not, but their grip strength is much higher during the hours immediately after they are born. by afeeney
Okay but you keep saying "some" women, when we're talking about the "average" woman.
Applejuiceinthehall t1_ivceqf5 wrote
But it's only the average because human babies don't have skulls that are 40% of adult skull (which chimps have). If humans were born with that big of skull then women with wider hips would have been selected for and women with narrow hips would have been filtered out
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