Spring Break Shark Swarm: Thousands of Sharks Shut Down Florida Beaches

A huge swarm of sharks that shut down beaches in Florida is migrating up the East Coast in a display that, while stunning, has spring breakers staying out of the water. Tens of thousands of the predators -- mostly blacktip and spinner sharks -- are now coming to shore, and towards swimmers, during their annual migration north. "We saw something moving in the water and everybody was saying, 'ahh! sharks!,'" one witness in Palm Beach, Fla. told ABC News. Craig Pollock, a lifeguard supervisor...Full Story