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 ...

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

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

More than 59 different primate species have been observed participating in some kind of same-sex behaviors, making it ...

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

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

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

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

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