What makes humans moral beings? This question can be understood either as a proximate “how”
question or as an ultimate “why” question. The “how” question is about the mental and …

We model the evolution of the division of a resource between two individuals, according to a
bargaining mechanism akin to the ultimatum game, in which a dominant proposer makes an …

The vast majority of human beings regularly engage in reciprocal cooperation with
nonrelated conspecifics, and yet the current evolutionary understanding of these behaviors is …

In the ultimatum game, two people need to agree on the division of a sum of money. People
usually divide money equally for the sake of fairness, and prefer to suffer financial losses …

Environmental adversity is associated with a wide range of biological outcomes and behaviors
that seem to fulfill a need to favor immediate over long-term benefits. Adversity is also …

Human beings universally express a concern for the fairness of social interactions, and it
remains an open question that which ultimate factors led to the evolution of this preference. …

Arising from MA Nowak, CE Tarnita & EO Wilson Nature466, 1057–1062 (2010)10.1038/nature09205
; Nowak et al. reply Nowak et al. argue that inclusive fitness theory has been of …

Modes of cultural transmission are, by analogy with modes of genetic transmission, ways in
which cultural information is transmitted between individuals. Despite its importance across …

In this article, we model analytically the evolution of mutation rate in asexual organisms.
Three selective forces are present. First, everything else being equal, individuals with higher …

In recent decades, a large body of work has highlighted the importance of emotional processes
in moral cognition. Since then, a heterogeneous bundle of emotions as varied as anger, …