Social Agression found in both Boys and Girls

http://www.sciencedaily.com/releases/2008/09/080916100934.htm

Through scientific analysis researchers debunked the commonly believed myth that boys are more inclined to show aggression physically (i.e. through hitting, fighting, etc.) and that girls are more prone to social aggression (i.e. gossip, social rejection/exclusion). The study found that boys are just as likely as girls to show both physical and social forms of aggression, and that children who exhibit one form are more likely to exhibit the other form as well.