Five oceans surround earth: Pacific, Atlantic, Indian, Arctic, and Southern. Oceans make up nearly 70% of the earth's surface. They provide home to thousands of unique aquatic animals and plants. As you go deeper down the pressure gets stronger and sunlight dims until no light can get through. Each of the five oceans have five main zones: Sunlight, Twilight, Midnight, Abyss, and Trenches.
Approximately 3,300 feet to 13,100 feet is complete darkness giving the name Midnight Zone. The only light shining comes from the bioluminescent creatures. This deep down pressure can reach 5,850 pounds per square inch, yet a decent amount of animals live here. The Midnight Zone animals look quite unusual such as angler fish and gulper eel. Due to lack of light animals found in the Midnight Zone appear black or red in color.
The deepest, darkest, and most pressurized zones are the Trenches. The pressure goes up to eight tons per square inch. Incredibly, invertebrates such as starfish or tube fish can still live here and cannot be removed from their habitat. The Mariana Trench, located in the Pacific Ocean off the coast of Japan, is the deepest point on earth reaching 35,797 feet!
An ocean has more than just saltwater and waves; it has zones filled with life. Species of plants and animals that need to withstand pressure, darkness, and freezing temperatures to survive in the various zones of our oceans.
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