Why is male?

Researchers in scotland published a theory suggesting that extra y some could explain criminality in some men. By this point, we're thinking, why is male? We think male is aggressive, so why must be aggression if you got an extra why? You must be crazy. And like we went nuts with this theory. They started scanning more prisoners, sereal killers, a boys. There was actually a suggestion that we consider a boarding x, y, y fetuses.