Altruism by definition decreases the fitness of the individual, so how can this behavior persist? The solution to the “problem” of altruism comes from decades of research into genetics and ...

Altruism is one aspect of what is known as prosocial behavior. Prosocial behavior refers to any action that benefits other people, no matter what the motive or how the giver benefits from the action.

Thus began de Waal's quiet revolution in how we discuss animal behavior, particularly the ... and other primates may point more toward such altruism and cooperation than a ruthless survival ...