How angler fish has light on its head?

The anglerfish uses a shiny lure to bring prey within range of its sharp teeth. But it also has a weirdly clingy side - after finding a female, the male black devil angler latches on and never lets go! read more

The name"anglerfish" derives from the species' characteristic method of predation. Anglerfish typically have at least one long filament sprouting from the middle of their heads, termed the illicium. The illicium is the detached and modified first three spines of the anterior dorsal fin. In most anglerfish species, the longest filament is the first. read more

Generally dark gray to dark brown in color, they have huge heads and enormous crescent-shaped mouths filled with sharp, translucent teeth. Some angler fish can be quite large, reaching 3.3 feet in length. Most however are significantly smaller, often less than a foot. read more