Of interest, pictures of sharks breaching
http://www.apexpredators.com/store/showCategoriesProducts.asp?categoryID=6
The "breaching shark" isn't coming out of the water for some fresh air, as whales do. They're snatching for food, right? What is it most likely, a bird? another fish he trailing, gone airborne?
That shark attack is a little to close to home for comfort for me. I worry enough with the kid's ocean swimming here, as it is.