Aptly named for its position at the surface level, this sunlight zone, also called the surface zone or epipelagic zone, extends downward 200 meters or roughly 5% of the ocean’s av… See more

The twilight zone or the mesopelagic zone begins at 200 meters and extends downward to 1,000 meters, making up approximately 20% percent of the ocean’s total depth… See more

The deep ocean—the third and final layer—extends from the 1,000 meter point to the ocean floor, regardless of how deep that is. At minimum, it makes up 75% of the ocean’s de… See more

The ocean is a vast expanse of water that covers more of the Earth’s surface than land. Regardless, expert oceanographers have managed to divide it up into various layers. Whil… See more