Marine biologists have long referred to the whale shark as "the world's biggest fish," but most never imagined that this mega-jaws could be this big. With new laser photography techniques, scientists now believe this particular shark can grow up to 65 feet long. But don't be scared -- the whale shark isn't nearly as ferocious as the great white and other bad boys of the deep. Visitors to the Churaumi Aquarium in Okinawa, Japan, view two whale sharks as they swim past the world's largest acrylic panel viewing window. More Don't Let The Giant Shark Scare You
