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

The observation of homosexual behaviors in animals has long raised questions about their origins and functions. A recent ...

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 environments, are hunted by predators or live in more complex societies, ...

Add Yahoo as a preferred source to see more of our stories on Google. Japanese macaques at Joshin-etsu National Park in Japan. (Peter Adams / Getty Images file) (Peter Adams) Humans are far from the ...

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 ...

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

Data from 491 non-human primate species reveals reports of same-sex sexual behavior (SSB) in 59, and the distribution is not ...

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