Put down the measuring tape and pick up the clippers—it's time for a "Brozilian" or a "Butt Reynolds"

Rush Limbaugh is wrong about that. But here's the long (and short) of what science really does tell us about size

A study tries to find the real answer to that question and discovers men have been telling the truth all along

"A Mind of Its Own" author David M. Friedman chats about the long, uncut history of the penis.

Whether four-headed, double-jointed or even 40 times the size of its body, animal genitalia tells a species' story

The search for the "inner penis" can involve botched surgery, dangling weights and pain.

I grew up wanting to be average. Now I know the reason for the myth Asians are small: Making white men feel better

Whether Weiner did or didn't, many men do, and it might be because of biological urges, not just X-rated ones

Size isn't everything, and straight guys aren't nearly as squeamish about their butts as we've been led to believe

Ducks exhibit "sexual conflict-driven genital evolution," which makes for some odd parts

A survey suggests that American men may lag behind their Brazilian brothers in penis length.

Only one man in 100 reaches beyond the 5-to-7-inch average. Why are men lying, and why do women expect more?

A new book shows ladyparts in all their diverse glory. It's just what women need in a plastic surgery-obsessed age

Jonah Falcon boasts 13.5 inches, but otherwise he’s just an average overworked American who dreams of so much more

By Cary Tennis