Plural of dragonfish, a group of deep-sea fish with long bodies, large teeth, and bioluminescent organs used to attract prey in darkness.
From Old English 'draca' (dragon) + 'fish'. The name references the fish's dragon-like appearance with spiny fins and fearsome jaws. Medieval sailors named deep-sea creatures after mythical beasts due to their alien appearance.
Dragonfishes have light-producing organs called photophores that they use like underwater flashlights—some can even control the color of light they produce to communicate or hunt in the pitch-black depths where no sunlight reaches.
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