I have recently found out that sea stars (starfish) can regrow their limbs and that some species of starfish can cast off an arm and it will grow into a starfish. HOW awesome is that. I learnt this from this website...
http://www.susanscott.net/Oceanwatch2002/dec07-02.html
and just thought that it was a trivial fact worth knowing.
Also this kind of growth could be adopted to uses in cloning. Starfish have a much mroe basic anatomy than humans and so cloning is much easier for them however there could have some applications to cloning. Scientists are probably already looking into it (if they haven't already finished).
The reason for this post is to bring attention to this fact (if you didnt already know it) because it is stupifying and awesome. Starfish are now on my list of awesome animals.