Smaller fish and sea creatures.
Monk fish
Swallow prey
It helps the fish see its prey in the dark ocean
The angler fish is a bony fish found in deeper depths of the oceans. They have a fleshy growth that hangs from their heads, which act as a lure to attract prey.
Lantern fish and angler fish differ in physical characteristics and hunting strategies. Lantern fish are small and have bioluminescent organs for camouflage and communication, while angler fish are larger and have a bioluminescent lure to attract prey. Lantern fish are fast swimmers and hunt in schools, while angler fish are slow and use their lure to ambush prey.
The light on an angler fish's head is called a bioluminescent lure or esca. It is produced by symbiotic bacteria that live within the lure, which the angler fish uses to attract prey in the dark depths of the ocean. The glowing lure mimics the appearance of smaller fish or other organisms, luring unsuspecting prey closer for the angler fish to catch.
The anglerfish.
Angler fish eat practicly anything in it's path and can strike it's prey in 0.09 seconds so less then a second
they attract it with their "light" and when its close enough, it bites
to feed the angler fish jumps out of the water to grab low flying insects. it also spits out jets of water to "shoot down" its prey. ( from Wikipedia )
Angling is fishing with a lure. the angler gets its name because it uses a light dangling in front of its mouth a a lure. hens the name angler fish, because it gets its prey by angling.
angler fish eats various sea fish. and monkfish eat angler fish