Recently I came across something very interesting about certain creatures of the deep sea. At great depths of the ocean where there is no natural light, there are a few species which actually produce their own light. The angler fish and the appropriately-named flashlight fish are two such kinds. In fact the angler fish has a spinal projection from its head at the end of which is a bulb that glows – it can even switch on and off the bulb by controlling the flow of blood to the particular part of its body. Incredible!
The phenomenon of living things giving off light is known as bioluminescence. And while glow worms and fireflies do this by mixing chemical compounds in their bodies, the deep-sea fish described above, do it with the help of special light-producing bacteria in their bodies.
Then at the other end, is a kind of deep sea fish which has the ability to make itself practically invisible. Known as the hatchet fish, it has sides covered with large silver scales that act like mirrors besides two rows of light-producing organs on its underside. With any light falling on the fish being reflected back by the mirror-like scales, it can easily escape detection by its enemies and predators.
It is only a matter of time, I guess, before DC and Marvel Comics come up with a super-hero inspired by these amazing creatures of the deep!