For decades, scientists believed that bonobos, one of our closest living relatives, were among the most peaceful primates.

Humans are far from the only primates engaging in same-sex sexual activity. A new study found instances in which 59 nonhuman primate species, including bonobos, chimpanzees and macaques, have taken ...

Asharq Al Awsat Historically considered a more peaceful species than their chimpanzee cousins, bonobos are actually just as aggressive -- but target their ire most often at males, according to a study ...

Humans perceive emotional expressions displayed by non-human primates and spontaneously mimic these expressions, according to ...

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 today in Nature Ecology and Evolution, ...

Kissing may date back 21.5 million years in early ape ancestors Researchers studied modern primates to estimate how the behavior evolved Kissing is not universal today and only 46% of cultures ...

Jane Goodall, whose lifelong work as a primatologist helped broaden the world’s understanding of animal behavior and emotions, has died, her institute said Wednesday. She was 91. Her field studies ...

Stories centered around true love's kiss might be tales as old as time. And, according to a new study, kisses might even have been around before humans walked the earth. Humans kiss each other ...

Crying is one of the most recognizable human emotional signals. Tears appear when people experience grief, relief, joy, or ...