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 ...

Scientists have observed same-sex sexual behavior among more than 1,500 animal species, including penguins, giraffes and elephants. But it was unclear whether this behavior was widespread, if it was ...

The 43 rhesus macaque monkeys that escaped a South Carolina medical lab this week are among the most studied animals on the planet. And for more than a century, they have held a mirror to humanity, ...

CHICAGO -- Adult rhesus macaques make high-pitched, sing-songy vocalizations when they encounter infant monkeys -- just the kind of sounds humans seem to naturally fall into using around infants, ...

American Association of Physical Anthropologists Meeting (78th : 2009 : Chicago, Ill.) Papers presented at a symposium titled "Bones, Genetics, and Behavior : Physical Anthropology at the Caribbean ...

An unusual experiment with monkeys who were switched between mothers shortly after birth has demonstrated the importance of nature over nurture in behavior. Young monkeys reared by a mother other than ...

This paper describes the morphology of abnormal behavior of rhesus monkeys which had experienced a certain degree of social isolation. Analysis of the morphology of the behavior starts from the ...

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, ...

Bisexuality and homosexuality are present in more than just people. Animals have been observed engaging in same-sex mating for decades. Though homosexuality is rare in the animal kingdom, bisexuality ...