Hottest News Story of the Day: Sea Slug Disposable Penis

Some time on the afternoon of February 12, 2013, an article was published in Biology Letters with the title “Disposable penis and its replenishment in a simultaneous hermaphrodite.” In the past 24 hours since the article has been published, nearly 78,000 posts have appeared on the internet dedicated to the story of the sea slug’s disposable penis.

If you haven’t yet read about it, (how could you have missed it), a team of Japanese evolutionary biologists found that the Chromodoris reticulata loses its penis within 20 minutes of mating and cannot remate for another 24 hours until its penis if fully regrown.

The story has appeared in countless newspapers article and respectible online blogs such as Nature,, BBC and the CBC among tens of thousands of other sources.

We won’t go into any more detail here regarding the story since there are plenty of resources avaiable on google should you be interested. However, we would like to pose the question, should this story have garnered so much online interest? Sex sells, but after all, this is science.


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