A Tale of Coral Reefs, Great White Sharks and Rubber Duckies

Earth's oceans are essential to human life, but we pay more attention to outer space than to what's in and under the waters. Now, with so many marine species in danger that we could see mass extinctions within the next generation, it's time to rethink human relationships with the seas and their creatures. We hear some fascinating stories about our relationship to the seas, which are teeming with life -- fish, turtles, seabirds and seals that make round-trips of 39,000 miles across the Pacific. We also hear why sharks are important, what it's like to swim with them and how few are left, and we learn how 28,000 plastic bath toys traveled the world.