As animals go about their lives ― eating, fighting, having babies ― they don’t always follow the script laid out for them by ...

The researchers found that same-sex behavior was more common in primate groups with clear hierarchical structures and those ...

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

A new study by researchers at Imperial College London and published on Monday in Nature Ecology & Evolution could help shed ...

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

Bonds between same-sex individuals help apes and monkeys to manage conflict and strengthen alliances, especially in dry ...

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 ...

The evolutionary journey from primitive plesiadapiforms to early primates during the Paleocene and Eocene epochs represents a critical chapter in mammalian history. Fossil records from these periods ...

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

BUFFALO, N.Y. ­­ ­ ­­— Saliva is a bodily fluid most of us take for granted despite the significant roles it plays: aiding in digestion, maintaining strong teeth and defending against oral disease.