To voluntarily benefit another
Prosocial behavior, a voluntary behavior to benefit another, is an interesting concept from an evolutionary point of view. At first sight it may seem logical to be social, because everyone in the group benefits from it. But evolutionarily that does not hold up, because to propagate one’s own genes, cheating and being selfish pays. Therefore, many believe that prosocial behavior only exists because it is rewarded with social status, reputation, company, and receiving social behavior from others in return.