I started reading Leonard Shlain’s Sex, Time and Power: How Women’s Sexuality Shaped Human Evolution. I’m still early in the book, but it’s enlightening, shocking, and world-view changing from the start. If it can keep the momentum it’ll be one of the books I place in the “influential pile” in my personal library.
The catcher for me was the story of our evolution as Homo Sapiens Sapiens. Apparently our brain (as a species) hit a growth spurt 150,000 years ago, tripling the size in just a few thousand years. Well, our brain would have continued to develop past the size that it is today, but the human pelvis was too small to allow a brain larger than ours during the birthing process. The human pelvis is smaller, proportionally, than that of other animals because we stand erect, and a small pelvis keeps our bowels from falling out. Other animals don’t have this gravitational problem. Other animals also don’t have as hard of a time birthing as humans do, so the standing erect thing didn’t mesh well with brain enlarging – we made it work though.
In Shlain’s theory, there’s an African Eve in our story. About 150,000 years ago when we were evolving our big-ass brain, humans suffered an enormous amount of deaths at childbirth. The new baby’s ballooning heads couldn’t fit through the birth canal of women and this caused the near-extinction of the human race. But one large-pelvised woman came to the rescue of humanity. She gave birth to many children that spawned many more children – the ancestors of the entire current human population. Support for this idea: The genes of a human born in Austria and a human born in South Africa are more similar than the average chimpanzee’s genes compared to his neighbor in the next clan. This is a sign that all six billion humans today are the progeny of a singular ancestor from just a few thousand years ago, our African Eve (from around the Kenya area).
I think it’s neat that we aren’t smarter today because of women. It’s their fault. I think I’ll go tell the wife. I think she ruined the entirety of human existence. We probably wouldn’t have war today if she’d have done better in the past. She needs to know this. -antiwasp
Filed under: Evolution, Recommendations, Relationships, Technology