Dr. Ross Cunning: Coral Reef Researcher at the Shedd Aquarium

<p>Dr. Ross Cunning, research expert at Chicago's Shedd Aquarium, says the ocean's coral reefs are living animals, the start of the food chain, and incredibly important. He discusses what his recent research expedition revealed about how coral bleaching affects the Dry Tortugas off of Miami's coast and the Florida Keys.</p>