The sinking of the U.S.S. Indianapolis is widely known as a shark story—but the truth is much more horrifying.

The sharks of Seal Island Twenty years ago, Seal Island was “the greatest place on earth to see great whites,” recalls Hammerschlag, who also serves as president of Atlantic Shark Expeditions.

Series 2: 10. Sperm Whale A timid sperm whale must help the Octonauts release Peso from a giant clam.