they attract it with their "light" and when its close enough, it bites
Monk fish
Smaller fish and sea creatures.
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.
The anglerfish.
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.
Angler fish eat practicly anything in it's path and can strike it's prey in 0.09 seconds so less then a second
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 )
angler fish eats various sea fish. and monkfish eat angler fish
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 primarily communicate through non-verbal cues, such as body language and bioluminescent signals. They use their light-producing organs to attract prey, signal potential mates, and communicate with other angler fish in the darkness of the deep sea. Their communication is often focused on hunting, reproduction, and maintaining social distance from other angler fish in their environment.