Are Boys Vicious By Nature?

Are Boys Vicious by Nature? When we see, or hear a boy acting vicious we tend to think it is only in his nature. Is it truly their nature that made them who they are? The boy’s surrounding could play a bigger part in it all. The boys who are violent , family, friends , upbring , and environment could have affected them.
An example of a poor upbringing is a child with a poor family, or abusive family. With a poor family the boys will go out, and do whatever in there power to provide for themselves , or their family. Also they can start to develop the feeling of abandonment. Which can result in psychological damage , or trauma. Also a boy with an abusive family , will start the think violence is ok and start to be demoralized.
An environment