Add Yahoo as a preferred source to see more of our stories on Google. Dental remains dating back 300,000 years, which were discovered at a well-known Chinese archaeological site, have revealed ...

Humans don’t have a defined mating season like deer or wolves. Here’s how evolution blended biology, culture and social life into year-round intimacy.

Evolutionary theories of human sexuality have tended to describe people as generally preferring either short or long-term mating strategies. Hence, the idea that human sexuality falls on a continuum ...