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 ...

Quite an advantage in today’s world.

Researchers found men size up other men by height, body shape, and penis size. Men with larger packages were rated a higher threat than guys with small penises.

Doris Wagner, the DiMaura Professor of Biology, serves as the inaugural director of the Penn Plant Adaptability and Resilience Center. Her work explores how plants adjust their growth in response to ...

Humanized mouse models are vital for studying human gene function, but fully replacing mouse genes with complete human ...

The authors behind the new plant biology textbook being published today all have one thing in common: they are all staff and ...

Australian researchers found that human penis size influences both female attraction and male assessment of rivals.

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

After centuries of sustained effort, zebras remain evidence that domestication depends less on human ambition than on ...

Deep in the coastal woods of South Carolina, behind high fences, guard dogs, and security cameras, is a group of people who ...

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

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, ...