Flatworm Penis Fencing

Here’s a video documenting a mating behavior called “penis fencing” engaged in by a certain species of hermaphroditic flatworm. I probably fooled you into thinking this is something that happens at a frat party, but it’s just an example of the beauty of procreative science.

Facebook Conversations
          
    Hot Buzz

    What Children’s Book Title Best Describes Your Sex Life?

    collection

    What “Favorite” Bands Are Huge Red Flags?

    collection
    Now Buzzing