Food is scarce in the deep sea. The fish that live there must rely on what little food floats down from above — often referred to as “marine snow” — or eat their neighbors! Deep-sea fish typically have big mouths, long sharp teeth, and stretchy stomachs to catch prey in the dark and swallow it whole. This ferocious-looking fish, called “fangtooth,” is found at depths of 800 to 1,524 meters (2,600 to 5,000 ft). It grows to about 25 centimeters (10 in) long.

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