The bull shark: nine feet of pure brawn, one of the most aggressive animals on Earth. Bulls don't fear man at all and enjoy hunting in the shallows. They even pursue their prey in fresh water, bringing them in direct contact with people. Witness a thrashing bull ripping a large ray in half, and meet the fisherman who lost a leg to a bull shark and lived to tell the tale. Join zoologist Nigel Marven on a journey to learn more about these incredible predators, including a trip to the shark infested waters of the Bahamas.