http://www.rsmas.miami.edu/blog/wp-content/uploads/2012/04/Gray-reef-sharks-at-Kingman-reef-Marc-Nadon.jpg
http://ak2.picdn.net/shutterstock/videos/3966670/preview/stock-footage-gray-reef-shark-swims-past-scuba-divers.jpg
http://newswatch.nationalgeographic.com/files/2011/05/Diver-with-5-reef-sharks-going-by_PalauToddEssick2-950x628.jpg
http://localtvwtvr.files.wordpress.com/2012/07/capecodsharkhunters.jpg