PACIFIC OCEAN LIFE
'(<a href="http://www.j-archive.com/media/2011-04-25_J_26.wmv">Sarah of the Clue Crew reads from the Maui Ocean Center.</a>)  The distinctive head of the hammerhead shark gives the fish added lift in rising to the surface; this pair of fins that serves the same purpose is relatively underdeveloped'
the pectoral fins