Researcher Uses Whale Decoy to Study Shark Attacks
Dr. Austin Gallagher went inside a decoy built to look like a whale to see what happens when a great white shark attacks. His adventure was documented in the new Discovery Shark Week special, "Belly of the Beast: Feeding Frenzy." Another shark expert, Paul de Gelder, is diving back into harm's way for Shark Week. De Gelder survived a brutal shark attack in 2009 but lost his right forearm and leg in the ordeal.