In Florida, a rare event between top ocean predators was captured on video: bull sharks attacking a great hammerhead. Dr. Heithaus and a team of shark experts launch an investigation…

To find out why sharks are drawn to Hawaii’s volcanoes, biologists Dr. Mike Heithaus and Dr. Frances Farabaugh free dive with one of the most dangerous sharks: the tiger shark.

Discover what happens when two of the deadliest predators face each other.