“Our study altered several male body parts at once using life-size, 3D figures to show for the first time that penis size has ...

Keersten Fitzgerald does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...

The evolutionary significance of penis size has been a topic for abundant speculation, often packaged with the myth that the human phallus is far bigger than in other primates. However, the human ...