It seems the well of strange octopus stories will never run dry. Am I the only one who didn't know that:
"every so often an octopus with extra tentacles is discovered. These octopi [sic] typically have the usual eight tentacles branching off their trunk. But then the tentacles branch out themselves, and continue to branch out, until you have something like the last specimen: an 84-limbed beast."
The author goes on to call it a "fractal octopus".
(Read the full story and see more pictures at http://uglyoverload.blogspot.com/2008/08/fractal-octopi.html ; the original source is the amazing Pinktentacle.com)