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Midnight Hunter

Known as “viperfish”, these cryptic fish use their giant teeth to prey on other fish and can grow to be 2 feet long (24 inches).
@2012 KJ Osborn, Smithsonian

Known as “viperfish”, these cryptic fish use their giant teeth to prey on other fish. They can grow to be 2 feet long (24 inches). At night, the viperfish will make its journey to shallower depths to seek out prey. Scientists believe that the photophores (light-emitting organs) seen here underneath the eye are used to signal other viperfish. See more images of mid-water creatures in our slideshow.