Source: Huffington Post
Author: Dr Lisa Levin
Many of us know that most of planet Earth is covered with ocean — about 70 percent. We probably should have been named planet Ocean. But how many know that most of our planet is covered with deep ocean? That ocean waters deeper than 200 meters (656 feet) cover about two-thirds of the surface of the planet and more than 95 percent of the habitable volume? Most of this vast area is unexplored. We know less about the bottom of the ocean than we do about the surface of the moon, and as a result, most of the biological species in the ocean remain undiscovered.