Pre-taliban, in Afghanistan, if you'd done something bad, the men killed you.
If you'd done something really bad, they gave you to the women first.
I think this article has some truth, but not all women behave like this. I'm friends with a number who don't. I think feminism has caused a lot of this... although it's achieved a lot of good things in terms of women's rights, somewhere along the way it got twisted into the idea that women should be competitive in the same way men are.
Women are much better at co-operating then competing (which is why they often make better managers than men). When they compete, it usually turns personal and nasty quickly. Guys can fight one day, and forget it the next. Not always a good thing, but handy in this case.