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How Do Fish See in the Dark?

April 26, 2017animals Dark fish Mathematics zoology

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How Do Fish See in the Dark?

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Since sunlight never reaches the deeper parts of the sea, these regions are always totally dark. Yet fish live here and swim about without bumping into each other. How is this so? . . . Well, fish actually “see” without their eyes; they use other sensory organs. The next time you catch a fish, look for a line running along its s

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They can still see (it is rarely completely dark), but they may also use their lateral line to feel movements or pressure changes in the water. Some fish also have sensory organs around their face and mouth that can detect chemical cues.