Strange Jellyfish Glowing in the Ocean Deep

These types of jellyfish can be found in the darkest part of the ocean where the sun cannot penetrate. The first time you see one of these jellyfish glow, its pretty amazing. Bioluminescence is light produced by a chemical process within a living organism. The glow occurs when a substance called luciferin reacts with oxygen. This releases energy, and light is emitted. This is a strange phenomenon that occurs in squids, octopuses, fishes, shrimps, single-celled organisms.