Image Credit: "Isurus oxyrinchus by mark conlin2" by Mark Conlin, SWFSC Large Pelagics Program - http://swfsc.noaa.gov/ImageGallery/Default.aspx?moid=532. Licensed under Public domain via Wikimedia Commons - http://commons.wikimedia.org/wiki/File:Isurus_oxyrinchus_by_mark_conlin2.JPG#mediaviewer/File:Isurus_oxyrinchus_by_mark_conlin2.JPG