Jinnderella responds to my post Chicks who fight. She concludes:

Razib, I am a chick-who-fights. So is Michelle Malkin, Anne Coulter, Michelle Catalluno, and many others. We had the XY perspective from you and Steve, and I'm giving the XX perspective. I think fighting is in our genes, and cultural preferences suppress it. It is not sex limited. And I think muslim women have those genes too. They need only the opportunity to express them.

I disagree. I think women can be hateful, aggressive, competitive and vicious. But, I think that generally they stay away from violence in the context of intragender competition unless they are totally in control and the risk is low (imagine female Nazi prison guards sicking dogs on pregnant Jewish women). Pregnant women don't make the best warriors, neither do women who have toddlers (unless they want to leave them behind in the care of others). It seems that women with a propensity to use violence to settle disputes would have a fitness handicap. One could say the same for males, but it seems in the context of physique males have been sexually selected for size, human sexual dimorphism isn't something that can be denied, and Napoleon Chagnon and others have shown that great warriors are more reproductively fit. Women may be violent, but the size differential suggests that physical competition is more of a factor for males.

That being said, there is an overlap between male and female body size. So, there is likely an overlap between male & female propensity to violence.

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