A great white shark investigates bait. According to the International Shark Attack File at the Florida Museum of Natural History, there were 29 total shark attacks in 2011 in waters around the U.S. (including three in Hawaii). Surfers and others taking part in board sports were most often involved in these incidents. A recent shark scare in Cape Cod conjured visions of the movie "Jaws."
Chris Fallows / Discovery Channel
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