Clownfish use the fins on the sides of their body as well as their tail to move about.

More about clownfish. Wikipedia article (http://en.wikipedia.org/wiki/Amphiprioninae) Tree of Life Web Project (http://tolweb.org/treehouses/?treehouse_id=3390) A-Z Animals.com article (http://a-z-animals.com/animals/clown-fish/) © 2013 Jerry Jindrich. All rights reserved.