9. The Ninja Lanternshark (Etmopterus benchleyi)

The Ninja Lanternshark, discovered off the coast of Central America in 2015, is as mysterious as its name suggests. Its pitch-black skin absorbs nearly all light, while its body emits subtle bioluminescent glows, allowing it to blend seamlessly with the faint illumination of the deep ocean. This rare form of camouflage helps it avoid predators and sneak up on prey. For more on this shadowy marvel, visit National Geographic.