Why are guys so violent/filled with testosterone?

Anonymous
Girls would very rarely fight other girls.. unless it was self-defense. We just aren't violent, and don't like to pick fights.

But, at my school there are always fights between boys. 3 guys in my class came to school today with black eyes from getting punched in the face.

wtf? Why are men generally the more violent gender? And why so much testosterone? Maybe It's because they're 16?

no, I'm not a feminist or sexist.. I just want to know
Why are guys so violent/filled with testosterone?
27 Opinion