Shapes of tails of some major sharks
<a href="//commons.wikimedia.org/wiki/User:Andrea.dematteis.1987" title="User:Andrea.dematteis.1987">Andrea.dematteis.1987</a>
2008-10-21 07:47
Own work based on: <a href="//commons.wikimedia.org/w/index.php?title=File:Shark_Tail_shapes.svg&amp;action=edit&amp;redlink=1" class="new" title="File:Shark Tail shapes.svg (page does not exist)">Shark Tail shapes.svg</a>