The rod-like lure on the head of a female anglerfish attracts prey using bioluminescence.
"The female anglerfish is squat and lumpy in shape, equipped with many needle-sharp teeth in her huge mouth, and a small luminous lure like a fishing-rod (hence her name) by which she attracts prey fish within reach of her jaws." (Foy and Oxford Scientific Films 1982:52)
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