A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

Homosexual behavior in primates has a deep evolutionary basis and is more likely to occur in species that live in harsh ...

Behaviour among non-human species could help keep groups together in face of social challenges, says study ...

Researchers uncover evidence that the gut microbiome and brain connection can influence brain gene expression and neural ...

1. Introduction / Tracy L. Kivell, Pierre Lemelin, Brian G. Richmond, and Daniel Schmitt -- 2. On primitiveness, prehensility, and opposability of the primate hand : the contributions of Frederic Wood ...

A new study from Northwestern University is reshaping how scientists think about brain evolution. The research suggests that ...