7 Things We Don’t Know About the Ocean The ocean covers 70% of the planet, but humans still don’t know very much about it. In this episode, Hank discusses seven mysterious ocean topics. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts Are Men Really Better Drivers Than Women? How to avoid taxes legally Optogenetics – Using Light to Control the Brain and Your Pain DNA Editing: Doping of the Future? Proof of evolution that you can find on your body Who Killed the Smart Gun?