Bioluminescence: The Ocean's Natural Light Show
Bioluminescence is one of nature's most spectacular phenomena.
How Common Is It?
- 90% of deep-sea creatures are bioluminescent
- Found in 700+ genera of organisms
- Present at all ocean depths
Why Animals Glow
Defense
- Counter-illumination to hide shadow
- Flash to startle predators
- Release glowing decoys
Hunting
- Lures attract prey (anglerfish)
- Illuminate area to spot prey
Communication
- Find mates with species-specific patterns
- Coordinate schooling
Famous Glowing Animals
| Animal | Color | Use |
|---|---|---|
| Anglerfish | Blue | Hunting lure |
| Firefly squid | Blue | Defense, mating |
| Dinoflagellates | Blue | Defense |
Where to See It
- Mosquito Bay, Puerto Rico (brightest in world)
- Maldives beaches (seasonal)
- San Diego (bloom events)