In the animal kingdom, penises can be spiked, split, corkscrewed—even detachable. They're one of the most diverse structures ...

In the animal kingdom, penises can be spiked, split, corkscrewed - even detachable. They're one of the most diverse structures in biology. The human ...

Activists quietly shifting the goalposts on sex-and-gender discussion to escape the fact that they're losing the biology of ...

Modern researchers know about the cuckoo’s cross-species brood parasitism – but one Roman emperor observed this more than 700 ...

A female crash-test dummy to replace an outdated model largely based on male proportions would improve safety for women, who ...

While most of us know baby horses are adorable, the majority of people don’t realize the process involved in equine ...

Reproductive disorders are diseases involving the reproductive system, including reproductive tract infections, congenital abnormalities, cancers of the reproductive system and sexual dysfunction. Our ...

I was told I may never orgasm after my operation, but after experimenting and getting past my anxieties, I'm so confident in what my body can do.