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

Biologists tend to look at the animal kingdom and try to categorize things in an organized fashion. But nature has a way of ...

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

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

Primates form same-sex sexual behavior alliances to gain rank and mating opportunities Male primates use same-sex bonds as ...

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

A comprehensive new study has examined the prevalence of same-sex behavior in dozens of primate species.

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

Almost 60 different primate species exhibit same-sex sexual behaviors.

Nothing brings a group of primates together, humans included, quite like a threat from outside. Bonobos are unique among ...