Lanternfish: These small deep-sea fish have light-producing organs called photophores on their bodies, which they use for communication, camouflage, and attracting prey.

Glowworms: These are actually the larvae of certain beetle species which emit a steady glow to attract prey.

Anglerfish: This deep-sea terror has a bioluminescent lure, sort of like a lightbulb, that dangles in front of its mouth to attract unsuspecting prey in the dark depths of the ocean.

Krill: These tiny crustaceans are a vital food source for many marine animals. Some krill species can emit light, likely for communication or defense.

Vampire Squid: This deep-sea cephalopod can emit flashes of light to confuse predators. It can also release a cloud of bioluminescent mucus as a decoy.

Jellyfish: Many species of jellyfish are bioluminescent, producing light that can startle predators or attract prey.

Fireflies: Perhaps the most well-known bioluminescent creatures, these beetles use their flashing lights to communicate with potential mates.