The neuropeptide, oxytocin, receives increasing attention due to its role in stress regulation
and promoting affiliative social behavior. Research across mammals points to a complex …

Non-human primates are marked by well-developed prosocial and cooperative tendencies
as reflected in the way they support each other in fights, hunt together, share food and …

Animals that maintain cooperative relationships show gains in longevity and offspring
survival. However, little is known about the cognitive or hormonal mechanisms involved in …

Recent evidence suggests that enduring social bonds have fitness benefits. However, very
little is known about the neural circuitry and neurochemistry underlying the formation and …

Humans excel in cooperative exchanges between unrelated individuals. Although this trait is
fundamental to the success of our species, its evolution and mechanisms are poorly …

In any given species, cooperation involves prosocial acts that usually return a fitness benefit
to the actor. These acts are produced by a set of psychological rules, which will be similar in …

Cooperation often involves behaviours that reduce immediate payoffs for actors. Delayed
benefits have often been argued to pose problems for the evolution of cooperation because …

Social interactions are central to the health and psychological well-being of domestic
animals. Until now, research has overwhelmingly focused on negative social behaviours …

Many mammalian species, including humans, exhibit social behavior and form complex
social groups. Mechanistic studies in animal models have revealed important roles for the …

Aggression is costly, and animals have evolved tactics to mitigate these costs. Submission
signals are an underappreciated example of such adaptations. Here we review submissive …