in 2012, his father david garrison did some research and came upon shark defense. a new jersey company run by scientists who back in 2006 discovered that sharks are extremely sensitive, believe it or not, to magnetic waves. sharks have a net boring of gel filled black dots on their spots. so sensitive that they pick up weak electrical signals picked up by even the heart beats of their prey. they act as receptors, sending messages to the brain about activity. when sharks approach a person wearing magnets, they sense a stronger than normal magnetic field, unpleasant enough to makele sharks turn and swim away. >> it is like you get blasted in the eye with a super bright light in a dark room. it is uncomfortable and unpleasant but not harmful. >> david garrison got a first hand look at the technology with patrick rice, a marine biologist who worked shark defense. garrison, having reviewed the 15 research studies on the science, was so impressed. he listened the technology from shark defense. agreeing to pay a percentage of future sales for a shark deterrent made by a n