The Blackdragon Fish
Credit: Dr. Julian Finn, Museum Victoria

Another bottom-dwelling bioluminescent creature, the blackdragon fish has light-emitting organs arranged all along its belly to fool predators by changing its silhouette. The spooky fish also has bioluminescencant "flashlights" next to each eye that it can flash on while on the look-out for prey or to signal potential mates. As you can see in the above photo, the black dragonfish is so toothy that even its tongue has razor-sharp teeth.