From an evolutionary perspective, morality is a form of cooperation. Cooperation requires
individuals either to suppress their own self-interest or to equate it with that of others. We …

Recent research has produced new insights into the early development of social cognition
and social learning. Even very young children learn and understand social activities as …

Winner of the William James Book Award “Magisterial... Makes an impressive argument that
most distinctly human traits are established early in childhood and that the general …

Michael Tomasello offers the most detailed account to date of the evolution of human moral
psychology. Based on experimental data comparing great apes and human children, he …

Tool-making or culture, language or religious belief: ever since Darwin, thinkers have
struggled to identify what fundamentally differentiates human beings from other animals …

Human adults engage in costly third-party punishment of unfair behavior, but the
developmental origins of this behavior are unknown. Here we investigate costly third-party …

The Handbook of Moral Development is the definitive source of theory and research on the
development of morality. Since the publication of the first edition, ground-breaking …

Pretend play is a form of playful behavior that involves nonliteral action. Although on the
surface this activity appears to be merely for fun, recent research has discovered that …

Social norms have played a key role in the evolution of human cooperation, serving to
stabilize prosocial and egalitarian behavior despite the self-serving motives of individuals …

Robot ethics encompasses ethical questions about how humans should design, deploy, and
treat robots; machine morality encompasses questions about what moral capacities a robot …