Many people in our world face the unique demands of special careers. The "Risky Business" series gives you an up-close-and-personal profile of people who do things most of us would never dream of doing. As you read about them, you'll find out what worries them and what excites them about their jobs. You'll also learn how each person trained to become an expert in his or her field.Meet Dr. Sonny Gruber at his shark research facility on the island of Bimini.
