Executive functions (EFs) make possible mentally playing with ideas; taking the time to think
before acting; meeting novel, unanticipated challenges; resisting temptations; and staying …

Evolutionary psychology has emerged over the past 15 years as a major theoretical
perspective, generating an increasing volume of empirical studies and assuming a larger …

The authors review the theory of romantic, or pair-bond, attachment as it was originally
formulated by C. Hazan and PR Shaver in 1987 and describe how it has evolved over more …

Renewed interest in fission-fusion dynamics is due to the recognition that such dynamics
may create unique challenges for social interaction and distinctive selective pressures …

Biologists often compare average phenotypes of groups of species defined cladistically or
on behavioral, ecological, or physiological criteria (eg, carnivores vs. herbivores, social vs …

At some point in the course of evolutionâe" from a primeval social organization of early
hominidsâe" all human societies, past and present, would emerge. In this account of the …

We describe a Bayesian method for investigating correlated evolution of discrete binary
traits on phylogenetic trees. The method fits a continuous-time Markov model to a pair of …

Comparison is fundamental to evolutionary anthropology. When scientists study
chimpanzee cognition, for example, they compare chimp performance on cognitive tasks to …

In many nonhuman primates, the color red enhances males' attraction to females. In 5
experiments, the authors demonstrate a parallel effect in humans: Red, relative to other …

Why do people resort to plastic surgery to look young? Why are stepchildren at greatest risk
of fatal abuse? Why do we prefer gossip to algebra? Why must Dogon wives live alone in a …