06/15/2010 11:10 am ET | Updated May 25, 2011

Oil Spill: Sharks May Be Forced Toward Coastal Waters

The discovery of a weakened, disoriented tiger shark -- measuring more than 11 feet and weighing some 800 pounds -- in the surf of Nokomis Beach last month has become something of a poignant symbol for what scientists fear most from the gulf oil spill: the unknown effects of the massive underwater oil plume and dispersants on marine life beneath the waves.