Angler frogfish have neon-glow worm lures
Using high intensity blue LED torches with yellow filters while night diving, researchers observed three frogfish with worm-shaped lures (known as esca) that fluorescenced bright orange. Furthermore, free-swimming worms, which were the same size as the esca and glowed the same shade of orange, were also observed swimming right next to these lures.
Frogfish are famous for their ability to camouflage and mimic their surroundings. This discovery shows they are even greater masters of disguise and deception than we ever knew.
(a) Antennarius striatus under normal light; its flesh-colored "worm lure" is clearly visible above its head.