How Women May Have Shaped Men’s Penises
Size does matter, Nature reports, at least to some extent. A new paper published in the Proceedings of the National Academy of Sciences found that female preference likely helped shape the size and thickness of the human penis through natural selection. Human penises are longer and wider than the penises of other primates. Biologists know that penises of other species reveal information about what shaped a particular animal’s evolution, and they figured humans should be no exception.