These include the sunlight zone (epipelagic), the twilight zone (mesopelagic), the midnight zone (bathypelagic), the abyssal zone (abyssopelagic), and the hadal zone (trenches) ...

The ocean twilight zone, also known as the mesopelagic zone, is a layer of the ocean located between 200 and 1,000 meters below the surface ...

The twilight zone is home to a dizzying variety of bioluminescent ... a crucial role in shuttling nutrients and carbon between ocean layers. For scientists, it’s like watching the stars come ...

Photo Credit: NASA Oxygen-starved ocean “dead zones,” where fish and animals cannot survive, have been expanding in the open ocean and coastal waters for several decades as a result of human ...