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

Humans are the only primates that run nearly naked under the sun. Here’s how this biological tradeoff reshaped how our ...

Groundbreaking research reveals that human microbes can trigger genetic brain activity in other species, suggesting our ...

Bonobo evolution reveals bonding and group cohesion in response to threats, favoring paths to finding peace instead of ...

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

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

New research shows gut bacteria can directly influence how the brain develops and functions. When scientists transferred ...

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

Nonhuman primates like bonobos and chimpanzees might engage in same-sex sexual activities to strengthen bonds, particularly ...

Same-sex sexual behaviour has been recorded in around 1,500 species, from insects and starfish to birds and mammals. Yet sex ...