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

A growing body of research suggests same-sex behavior in nonhuman primates is important to social connections.

Bonobo evolution reveals bonding and group cohesion in response to threats, favoring paths to finding peace instead of ...

A major new study has examined the prevalence of same-sex behavior in primates. It appeared Monday in Nature Ecology and ...

Humans are the only primates that run nearly naked under the sun. Here’s how this biological tradeoff reshaped how our ...

Past theories have suggested that animals exhibit SSB to increase group cohesion, to signal dominance among a larger group, ...

Bonobo chimpanzees are unique among primates because they do not kill other bonobos. … They still showed increased alertness ...

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 ...

Some 60 primate species, including baboons, chimpanzees and vervet monkeys, express homosexuality, according to a new study ...

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