Homosexual behavior in primates has a deep evolutionary basis and is more likely to occur in species that live in harsh environments, are hunted by predators or live in more complex societies, ...

Same-sex behaviors seem to be common among rhesus macaques. Charles J. Sharp via Wikimedia Commons under CC BY-SA 4.0 Humans aren’t the only creatures engaging in same-sex sexual activities. To date, ...

In mammals, social behavior and social status can substantially influence the survival, reproductive performance, and health of individuals. However, it is not yet fully understood how the translation ...

Humans are far from the only primates engaging in same-sex sexual activity. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content. A new study found ...

As animals go about their lives — eating, fighting, having babies — they don’t always follow the script laid out for them by Charles Darwin’s theory of evolution. Not every behavior furthers the cause ...

A major new study has examined the prevalence of same-sex behavior in primates. It appeared Monday in Nature Ecology and Evolution. It’s been described as the most comprehensive review to date on the ...

A recent study into same-sex behavior in primates finds that social organization and ecological factors, including climatic conditions, influence this behavior. In gorilla groups, same-sex relations ...

Same-sex behavior is common across the animal kingdom—more than 1,500 species are estimated to have been observed engaging in same-sex behavior, from spiders and nematodes to bonobos and fish. Still, ...