The first spine of the dorsal fin of the anglerfish acts as a fishing rod with a lure. – Wikipedia
https://commons.wikimedia.org/w/index.php?curid=18541028
From A-Z Animals:
The Sweet Mysteries of Life
Oh, it gets weirder….
Anticipating your Next Question
Mama’s Hungry!
Cool NOAA video…. We learn that one species of anglerfish can swallow fish that are twice it’s size. They can be up to a meter in length.
National Geographic Vidio
Very cool BBC / Blue Planet video on Bioluminescence