First, consider the evolutionary background for human altruism and sociality. Among primates, human offspring grow exceptionally slowly and have a very long period of dependence. While various explanations have been advanced, there is evidence that slow growth reflects the heavy energetic requirements of...
where individuals act in ways that benefit others without expecting anything in return. Research in psychology suggests that humans have an innate tendency toward altruism, and compassion is a driving force behind many acts of kindness and generosity. ...