When I'm thinking about sharks, I'm usually too busy pondering their terrifying array of sharp teeth to consider what might be going on with their ears. As it turns out, everyone's favorite predator boasts ears sensitive enough that many experts say can detect changes in water and air pressure that typically accompany hurricanes and tropical storms. In fact, review of shark tracking patterns shows that they often react by diving into deeper waters to wait out the mayhem, as indicated by behavior before many storms, such as Hurricane Charley in 2004 and Tropical Storm Gabrielle in 2001 [sources: Welch, Farmers' Almanac ].
The ear theory has yet to be conclusively proven, with some experts saying that there are others ways by which sharks can identify approaching doom and take the necessary precautions [source: Frantz]. Be that as it may, it does seem that sharks, like many other animal brethren (who they'd probably find pretty tasty) do possess a sixth sense of sorts, which has probably contributed to their success in the whole "survival of the fittest" contest throughout time.