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

Many primate species have been observed engaging in same-sex sexual behavior. A new study suggests it likely developed evolutionarily to help reduce conflict and build bonds.

Humans aren’t the only creatures engaging in same-sex sexual activities. To date, scientists have documented around 1,500 ...

Biologists tend to look at the animal kingdom and try to categorize things in an organized fashion. But nature has a way of defying our neat little categories. Take something as common as same-sex ...

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