These are two distinctly separate processes where visible light is emitted from living species.

Bioluminescence is the emission of visible light either voluntarily or involuntarily.

Fluorescence is the involuntary emission of light when an organism is being subjected to ultraviolet light.

Biological Fluorescence

• Herper.com's survey of biological fluorescence

Bioluminescence

• The Bioluminescence Web Page
• Harbor Branch Bioluminescence Page
• Images of Bioluminescent Organisms
• Bioluminescence Studies Page
• Scripps Bioluminescence Page
• Firefly Behavior Article
• The Bioluminescent Bay
• Earthworm Bioluminescence
• The Firefly Files
• The Jellyfish Connection
• Glowing Seafood
• Bacteria that Glow in the Dark
• Luminous Bacteria
• Photobacterium
• Deep-sea Bioluminescence
• Living Lights
• Bioluminescence
• What's Glowing in the Water?