Because same-sex sexual behavior does not result in offspring, evolutionary biologists have long wondered how the genes associated with this behavior have persisted in the human genome, and whether ...

"Sex addiction" is more of a media buzzword than a medical term. This behavior is not technically an addiction in the same way as drug or alcohol addiction. However, the compulsive sexual urges that ...

Humans aren’t the only creatures engaging in same-sex sexual activities. To date, scientists have documented around 1,500 species, including whales, birds and fish, engaging in such behavior. Now, an ...

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 ...

Out-of-control sexual behaviors have existed throughout history, yet their official recognition only came much later. Some of the old terms you might have heard include satyriasis, nymphomania, and ...

Forbes contributors publish independent expert analyses and insights. William A. Haseltine, Ph.D., covers genomics and regenerative medicine A recent study from Cell inches us closer to understanding ...

A recent study revealed a substantial increase in the number of Americans who either identify as bisexual or have a history of bisexual behavior. 9.6% of respondents reported having both male and ...

This post was co-written with Anat Talmon, Ph.D., and Tova Lewin. Despite increased societal awareness of sexual abuse perpetrated by adults, the idea that sexual abuse might occur between children, ...