How Lurking Predators Changed the Size of the Mosquitofish's Genitals

Female mosquitofish give birth to tiny babies, like the guppies you may remember from your third-grade aquarium. That means male mosquitofish don’t spawn: if they’re going to be dads, they need to use a modified fin (called a gonopodium) to inseminate their mate. And sex with a long, stiff fin demands a daunting level… »8/25/15 11:30am8/25/15 11:30am

This Surgical Procedure Restores Sensation to the Penis by Remapping the Brain

Guys, imagine for a moment what life would be like if you couldn’t feel your penis. That can happen to men with some kinds of spinal injuries, or who were born with a condition called spina bifida. Their penises can still sense touch, but a break in the spinal cord means the signal never makes it to the brain.
»8/21/15 3:26pm8/21/15 3:26pm

Women Really Don't Notice Details About Your Penis

We’ve seen it in study after study: men worry about what their penis looks like. Is it too short? Too long? Too thin? Is the glans too fat? Will that birthmark be a deal breaker? Relax. A study published in the Journal of Sexual Medicine last month suggests that women don’t really notice those details.
»8/06/15 10:53am8/06/15 10:53am

Play-Doh Is Sorry It Sold Your Child a Toy Penis

You know that excited, blissful feeling on Christmas morning? When you scramble downstairs with a bounce in your step and a sparkle in your eye? And then you hunker under the tree to greedily unwrap your new penis-shaped Play-Doh dispenser? Because after this holiday season, a whole bunch of kids and parents do. And… »12/30/14 5:28pm12/30/14 5:28pm

UnHung Hero: A Film of, Well, Moderately Small Proportions

It's man's most-pondered question: Does size matter? While there are social and scientific explanations of the varying size of male genitalia, I feel as though none of them truly answer the question for the individual. They seem rather to quell the ongoing question only temporarily, but without an answer you can take… »7/18/14 8:00pm7/18/14 8:00pm

Scientists discover unique sex-reversed species with female penis

Scientists have discovered a new species in which the female is the individual who has the penis and the male has a vagina-like opening. According to Kazunori Yoshizawa—from Hokkaido University in Japan—these cave insects are the only documented beings in the planet with this surprising feature. »4/17/14 12:57pm4/17/14 12:57pm