Men assess potential rivals that have a larger penis as more of a threat, both physically and sexually, according to a study by Upama Aich at the University of Western Australia and colleagues, ...

Bigger really is better. They say it’s not about the size, but how you use it. However, it turns out that women generally ...

Men assess potential rivals that have a larger penis as more of a threat, both physically and sexually, according to a study ...

Women most often ranked male bodies more attractive when they exhibited a higher shoulder-to-hip ratio (i.e. a V-shape) and a ...

The study reinforces the idea that sexual selection has been key in forming unique human traits—and that old adages might be ...

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

This experimental study used life-sized and screen-based 3D male avatars to test how penis size, height, and body shape ...

For the first time, we know more than we ever expected to know about the sex lives of the majestic beluga whale. It's ...

Ducks evolved reverse spirals and sperm storage that give females surprising control, challenging long-held assumptions about ...

In Bridgerton season 3, Francesca Bridgerton’s relationships raised questions about orientation while redefining audience ...