The+Hadal+Zone

=__The Hadal Zone__= "Hadal" stands for Hades, or the god of the underworld. The Hadal Zone, also known as the //**hadopelagic zone**//, is the deepest known underwater place on earth. It can be as deep as 20,000 feet or more. No sunlight reaches this area. Few species have adapted to live here. There is intense pressure in this area: about 1,100 standard atmospheres. This area is the least explored of the 5 zones. It includes trenches like the Mariana Trench in the Pacific Ocean which has a depth of 35,800 feet. It includes many unknown species of fish. The known ones are: the jellyfish, viperfish, tubeworm, seacucumbers, algae, plankton, zooplankton, and the angler fish. Because this zone has no sunlight, animals that live here have reduced eyesight, and big eyes which allows them to receive bioluminescent flashes of light.



__Sources__: [] [] []