Casagrande was asked what in the world he is supposed to do when a great white shark is swimming right at him. He answered that he must do something counterintuitive: swim directly at the shark with the camera. This action seems to trigger a defense mechanism in the shark. “Now they’re like, ‘Wait a second, everything in the ocean swims away from me.’ The reality is that if you don’t act like prey, they won’t treat you like prey.”

