Former US Navy deep sea diver and marine naturalist Robin D. Berg and renowned shark expert Eli Martinez explore the surprising behavior of dangerous sharks, and now we know they are not just mindless killing machines.

The lemon shark is one of the most intelligent sharks, and is known for a vicious temper... but do they actually respond to human touch and affection?

Eli and Robin investigate bull shark behavior when confronted with SCUBA and then with Freedivers.

Robin and Eli encounter the oceanic whitetip shark, one of the most dangerous sharks in the world.

Tiger sharks display a wide range of behavior, if you're playing in the surf or diving in deep water when you meet one, the experience can be quite different.