A new study suggests humans belong in an elite “league of monogamy,” ranking closer to beavers and meerkats than to ...

Scientists have uncovered a previously unknown cluster of brain cells that may help explain differences in social behavior ...

The findings shed new light on human reproduction and suggest pathways for developing treatments to lower the risk of ...

You'd think we'd know everything there is to know about sexual reproduction. But as it turns out, there are still quite a few ...

“While the human penis functions primarily to transfer sperm, our result suggests its unusual large size evolved as a sexual ...

More girls are hitting puberty at eight or earlier. Researchers are exploring the causes, the consequences and what should be done.