Lots More Information Related Articles How Shark Attacks Work Will a shark drown if it stops moving? Top Ten Shark Attack Stories How Animal Camouflage Works What is electroreception and how do sharks use it? What do most sharks eat? Could shark cartilage help cure cancer? 什么原因s a shark feeding frenzy? More Great Links Discovery Channel Shark Week Scuba Diving and Snorkeling Worldwide The Shark Research Institute ReefQuest Expeditions Shark Research Program The American Elasmobranch Society The Pelagic Shark Research Foundation Sources Dehart, Andy. Personal correspondence. July 18, 2008.