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

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

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

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

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

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

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

The authors even anticipated the connection to sexual dimorphism, noting that these species have more dominance-related ...

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

Cooperative behaviour and prosociality in nonhuman primates constitute a vital area of research that illuminates the evolutionary origins of complex sociality. Studies indicate that primates employ a ...