I wrote a dozen different (failed) attempts at a (not-so) humorous intro, tying this little fellow in with a current topic of debate, but they all made me cringe, and so I'll just cut straight to the chase here.  It just so happens that there are many cases of changing sex amongst marine organisms. One of these examples is found in the beautiful and elegant ribbon eel, so named because when free-swimming, it looks like the rippling ribbon of a rhythmic gymnast. As hypnotizing as they are, it is incredibly rare to see ribbon eels free-swimming. They are usually burrowed down