Introduction • Is light produced through a chemical reaction within a living organism • Bioluminescence is a chemical reaction but it is a certain kind. • Less than 20% of the light generates any heat • In the ocean most organisms can only see on the blue-green visible light spectrum • They are physically not able to see violet, red, or yellow colors Description of the phenomena • The organism must contain a molecule called luciferin that when exposed to oxygen produces light • Some organisms even have luciferase inside to help speed up the process