Mysterious Eyeball Found on Beach

Giant 'mystery eyeball' discovered on South Florida beach: 

"The discovery of an enormous eyeball on a South Florida beach begs a very pertinent question: What kind of creature did it belong to? The "mystery eyeball," as it's being referred to by the Florida Fish and Wildlife Conservation Commission, was found Wednesday by a beachcomber on Pompano Beach."

The only person quoted in this story who knows what he's talking about is George Burgess, the marine biologist who runs the International Shark Attack File. He suggests a bigeye thresher shark, which looks like this: