Sex For Flatworms is Both Love and War

From the video, “It’s known as penis fencing, and the worms are the swordsmen”

Potentially NSFW if having the word the penis said a dozen times over your computer speakers will cause issues.

3 Replies to “Sex For Flatworms is Both Love and War”

  1. This is the clip from the Shape of Life bit on flatworms…Too bad that DVD set is out of print now. Its one of the most awesome things on invertebrates ever made…

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