Thousands of feet beneath the surface of the ocean, animals live, even thrive, in conditions that are impossible for most of us to even imagine. Our blue planet is indeed a water planet, yet incredibly, over 90 percent of the ocean remains unexplored and unseen by humans.
At that deepest point, the dark waters of the ocean extend 36,000 feet down—nearly 7 miles. For comparison, the recommended maximum depth for recreational scuba divers is just 130 feet. Far, far down at the bottom of the ocean is an environment unlike any other place on earth.