Explorer, oceanographer, and field scientist, Dr. Sylvia Earle has been advocating for the health of our ocean for decades. The author of National Geographic's  Ocean – A Global Odyssey, Dr. Earle navigates the deep for us and shares stories about everything from the personality of fish to what it was like to be an Aqua-Naughty!

Former Chief Scientist of the National Oceanic and Atmospheric Administration -  NOAA (the first female to hold that job), the designer of underwater submersibles, and the founder of Mission Blue, Dr. Earle is Time’s very first Hero for the Planet and is a pioneer for females in the study of oceanography. We talk about her time under the sea, why this book is so very important, and what over-fishing is doing to the ocean.