Ever Wondered Why Penises Are Shaped The Way They Are?

No? Well, I hadn’t either, until a friend of mine emailed me this article from the Scientific American. According to the article and the research of evolutionary psychologist Gordon Gallup, there are a few reasons why the penis may be shaped like it is. I definitely recommend reading the full article, but in case you’re in a rush, here are a few highlights:

  • Researchers have only begun to study the shape and evolution of the phallus in the past few years
  • Compared to our primate relatives, male-bodied humans have extremely large penises
  • The mushroom-shaped glans is specific to humans
  • In his research, Gallup used “latex penises” (or, more colloquially, dildos), and a recipe for fake semen that “consisted of 0.08 cups of sifted, white, unbleached flour mixed with 1.06 cups of water. This mixture was brought to a boil, simmered for 15 minutes while being stirred, and allowed to cool.”

Did my article highlights get you thinking? If so, then check out the full article!

Human males aren’t the only ones with interesting genitals. Certain ducks have corkscrew shaped penises and the vaginas are quite intricate as well – check out this article in Discover Magazine if you’re interested.  And if you’re really interested in the mating patterns of animals and what we can learn about human sex from it, check out Marlene Zuk’s book Sexual Selections: What We Can and Can’t Learn About Sex From Animals.

[Scientific American]

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About Michaela


Michaela is a recent Seven Sisters graduate with a self-designed degree in Sexuality Studies. When she's not blogging, you'll find her teaching Health and Wellness and A Cappella to high school students, helping women find properly fitting bras, and working as an editor on a documentary. She hopes to continue her education one day with a PhD in Feminist Anthropology.