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

The researchers found that same-sex behavior was more common in primate groups with clear hierarchical structures and those ...

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

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

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

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

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

In truth, it is not a paradox. The animals involved all seem perfectly eager participants in heterosexual behaviour, as well, so their reproduction is not compromised. It is, though, a puzzle—for ...

A new study has found that same-sex intimacy is expressed by nearly 60 primate species, including baboons and chimpanzees.

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

Primate species with better color vision are not more likely to have red skin or fur coloration, as previously thought. Primate species with better colour vision are not more likely to have red skin ...

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