They're fish that fly. They are carp from Asia now popping up in America's waterways like zombie attackers from a B-movie. They can jump 10 feet in the air at the sound of a boat motor, turning a day on the water into a boxing match. Bighead and silver carp were first imported into the U-S in the early 1970s. They soon escaped. Now they are in almost half the American states and are on the march toward Canada. Aquatic Ecologist Zeb Hogan is literally dodging flying fish as he tries to discover why these invaders are taking over and if there's anything we can do to stop them.