Ocean Twilight Zone writes, "Theyre also useful for grabbing a meal: when prey comes near, the viperfish drops a glowing light on its dorsal fin ray like a fishing lure in front of its mouth andsnap!

However, the Pacific viperfish is known to migrate to greater depths of up to 5,000 feet. This is considered the midnight zone, and it spans from 3,300 to 13,100 feet. The only light in the ...

The viperfish (pictured above) is a fierce predator ... This is the only fish that produces red bioluminescence Many deep-sea creatures give out blue light called bioluminescence - but the stoplight ...