It doesn't seem like it if you watch political news but humans are unusually cooperative. We are unique in that we often cooperate with genetically unrelated strangers. Nurses, firefighters, helping someone who dropped a package, standing in line, there is no natural selection benefit to that. In a natural selection-dominated world, the cheats, nepotists, and cronies would always win but unlike most of the animal kingdom, those behaviors are considered deviant.Why do we cooperate? Language, intelligence, religion, the desire to hunt large game, there is no shortage of speculation about why we became Apex Cooperators.