Penis Fencing
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By , on May 21st, 2009 3 comments   Mating & Reproduction, Organisms   , , , , , , ,  

To borrow from the great comedic folk duo, Flight of the Chonchords “Yeah, you sexy hermaphrodite lady-man-lady, with your sexy lady bits, and your sexy man bits too, even you must be into you-oo-oo.” Hermaphroditism is common in marine invertebrates and the, flatworms are no exception. Certain species of flatworm engage in a behavior called . . . → Read More: Penis Fencing

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Introduction to Sex Week
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By , on May 17th, 2009 24 comments   Mating & Reproduction   , , , , , , , , , , , , , , , ,  

This is the official introduction to Sex Week at DSN. We here at DSN never shy away from writing about sex. Through reproduction, fitness is realized as progeny populate the landscape. Thus reproduction can be considered the backbone of evolution as traits are selected for and against, or perhaps not at all. Reproductive methods, the . . . → Read More: Introduction to Sex Week

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Sex For Flatworms is Both Love and War
Sex For Flatworms is Both Love and War avatar

By , on March 19th, 2009 3 comments   Adaptations, Mating & Reproduction, Organisms   , , , , , , , , , , , , ,  

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.