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Experts weigh in on some of the most amazing shark events captured on video to reveal the secrets behind the attack. (National Geographic)
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Photo © National Geographic Channel
![Eyewitness: Shark Attack - Photos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/163/576/163576472_a5aee5.jpg)
Photo © National Geographic Channel
![Eyewitness: Shark Attack - Photos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/163/576/163576473_35e058.jpg)
Experts weigh in on some of the most amazing shark events captured on video to reveal the secrets behind the attack. (National Geographic)
Photo © National Geographic Channel
Photo © National Geographic Channel