17. Anglerfish
Do you remember the movie known as Finding Nemo? There is a part of the film where Dory and Marlin go into a very dark part of the ocean, unable to see anything. Suddenly, a monster pops up and turns on the light connected to it. This animal was an Anglerfish!
The Anglerfish is known for being in the dark, deep sea which is why it has a light of sorts that it uses to lure in prey. It really does move throughout the darkness, trying to somewhat influence other fish to check out the random light. It then eats its prey with its really sharp teeth. The Anglerfish looks like the embodiment of evil, honestly. It is truly horrifying, to say the least.