The role of aggression in the lives of individuals, species and nations

Why do we see aggressive behavior in all animal species, including in humans? What is its usefulness? From an ethological point of view, aggression is a behavior which allows for a hierarchical status to be established within a group, facilitates the access to resources, allows one to defend against the

Aggression in men. Social roles or evolutionary roots?

In almost every society men are the ones who are overwhelmingly involved in wars, in all kinds of intergroup aggressions and intragroup homicide; they mobilize themselves in armies of violent fans, in criminal gangs, in bands of thugs, etc. These observations are as old as the world and have allowed