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 ...

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

Discover how recent research challenges traditional views on evolution by revealing the crucial survival functions of ...

Same-sex behavior is common across the animal kingdom—more than 1,500 species are estimated to have been observed engaging in ...

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

Same-sex behavior is widespread in primates and may help strengthen social bonds and improve survival under challenging ...

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

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 ...

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.