Figure 1: (c,d) Auto- tomized penes after copulation; the tip of the penis is swollen. A mass of sperm (sp) is attached to the thorny penis in (d ). (e) Surface of the penis is equipped with innumerable backward-pointed spines. (f) Sperm are entangled in the spines. Autotomized penis stained with haematoxylin after being air-dried on a glass slide. Arrows show the direction of penis insertion. "Figure 1" Sekizawa A, Seki S, Tokuzato M, Shiga S, Nakashima Y. Disposable penis and its replenishment in a simultaneous hermaphrodite. 2013 Biol Lett 9: 20121150. http://dx.doi.org/10.1098/rsbl.2012.1150

Sea slug disposes penis, regrows within 24 hours

April 11, 2013 · by · in

Today, we can pretty much find many of the things we use in disposable forms; disposable napkins, disposable cameras, disposable utensils are just the norm, but what about disposable penis?  The red and white spotted hermaphrodite sea slug, Chromodoris reticulata…

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