Homosexual behavior is not limited to humans. Biologists have reported homosexual behavior in many species of wild animal, ranging from bats and birds to dolphins and primates. When animals engage in ...

A group of monkeys is challenging humans' views on sexuality by showing that same-sex behavior among males strengthens their social networks and may even help them father more offspring. The findings, ...

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The hormone oxytocin appears to increase social behaviors in newborn rhesus monkeys, according to a study by researchers at the National Institutes of Health, the University of Parma in Italy, and the ...

Observations of a wild colony of macaques over three years show same-sex sexual behavior among males is widespread and may be beneficial. The results, published in Nature Ecology and Evolution, ...

While observing a group of rhesus monkeys on a tiny Caribbean island, researchers were shocked by what they saw: widespread homosexual exploits. “I was expecting to see same-sex behavior … but the ...

One of America's most recognized and experienced broadcast journalists, Lesley Stahl has been a "60 Minutes" correspondent since 1991. Scientists are studying how monkeys living on a remote island off ...