The term deep sea creature refers to organisms that live below the
photic zone of the ocean.
These creatures must survive in extremely
harsh conditions, such as hundreds of bars of pressure, small amounts of
oxygen, very little food, no sunlight, and constant, extreme cold.
Most
creatures have to depend on food floating down from above.
These
creatures live in very harsh environments, such as the abyssal or hadal
zones, which, being thousands of meters below the surface, are almost
completely devoid of light.
The water is between 3 and 10 degrees
Celsius and has low oxygen levels.
Due to the depth, the pressure is
between 20 and 1,000 bars.
Creatures that live hundreds or even
thousands of meters deep in the ocean have adapted to the high pressure,
lack of light, and other factors.
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