The aims of this article are:(i) to provide a quantitative overview of sex differences in human
psychological attributes; and (ii) to consider evidence for their possible evolutionary origins …

Few spheres in life are as universally relevant for (almost) all individuals past puberty as
sexuality. One important aspect of sexuality concerns individuals' sex drive—their …

What is morality? And to what extent does it vary around the world? The theory of “morality-
as-cooperation” argues that morality consists of a collection of biological and cultural …

While there is a growing literature on “dark traits”(ie, socially aversive traits), there has been
a lack of integration with the burgeoning research literature on positive traits and fulfilling …

Incels (involuntary celibates) are a subculture community of men who build their identity
around their perceived inability to form sexual or romantic relationships. To address the …

Taxonomies of person characteristics are well developed, whereas taxonomies of
psychologically important situation characteristics are underdeveloped. A working model of …

This study examined self-reported changes in young adults' sexual desire and behaviors
during the most significant social restrictions imposed to deal with COVID-19. Drawing on a …

Where did we come from? What is our connection with other life forms? What are the
mechanisms of mind that define what it means to be a human being? Evolutionary …

Narcissism is known to be related to romantic success in short-term contexts (dating, early
stage relationships) but also to problems in long-term committed relationships. We propose …

This survey (N= 224) found that characteristics collectively known as the Dark Triad (ie
narcissism, psychopathy and Machiavellianism) were correlated with various dimensions of …