At Las Vegas casino's shark tank, the sharks eat just as good as the tourists, dietician says
Becky O’Brien always wanted to work with ocean life, but she didn’t realize she’d be able to do the job in the middle of the Las Vegas desert. Now she and her team at the Shark Reef Aquarium at the Mandalay Bay resort care for 15 species of sharks, which have strict diets. (AP Video by: Ty ONeil)

