![7 Things We Don't Know About the Ocean](https://hight3ch.com/wp-content/uploads/2016/04/7-things-we-dont-know-about-the.jpg)
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.
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.