QueenBees and Wannabees

What it is about some girls and their need to manipulate and control?
Having made it through childhood and adolescence alive but slightly scarred from the way girls treat each other, I must admit I worry about how my little girl will fare. My feeling of wanting to protect her is overwhelming.
She started pre-school this year, and I was shocked and saddened to see that the power play begins even with the 4 year olds. It seems that the girls who are the oldest sibling or in a family of only girls are the worst. Those, like my daughter, who have one or more older brothers seem to have more of a no-nonsense approach to their relationships. Long may this continue!