The field of prosociality is flourishing, yet researchers disagree about how to define
prosocial behavior and often neglect defining it altogether. In this review, we provide an …

Empathy reflects the natural ability to perceive and be sensitive to the emotional states of
others, coupled with a motivation to care for their well-being. It has evolved in the context of …

Proactive, that is, unsolicited, prosociality is a key component of our hyper-cooperation,
which in turn has enabled the emergence of various uniquely human traits, including …

Decisions that favor one's own interest versus the interest of another individual depend on
context and the relationships between individuals. The neurobiology underlying selfish …

Cumulative culture is a transformative force in human evolution, but the social
underpinnings of this capacity are debated. Identifying social influences on how …

The study of cooperation is rich with theoretical models and laboratory experiments that
have greatly advanced our knowledge of human uniqueness, but have sometimes lacked …

Farm animal welfare is a major concern for society and food production. To more accurately
evaluate animal farming in general and to avoid exposing farm animals to poor welfare …

Despite decades of research with humans, the biological mechanisms that motivate an
individual to help others remain poorly understood. In order to investigate the roots of pro …

Humans are thought to possess a unique proclivity to share with others–including strangers.
This puzzling phenomenon has led many to suggest that sharing with strangers originates …

Prosocial behaviors (ie, actions that benefit others) are central for social interactions in
humans and other animals, by fostering social bonding and cohesion. To study prosociality …