A dive into the deep sea reveals twinkling lights in the midst of darkness. This light doesn’t come from the sun—sunlight can’t penetrate to these depths—it comes from the animals that live here. Scientists call this living light show bioluminescence—when living organisms create their own light using a chemical reaction. MBARI Senior Scientist Steve Haddock and his team are working to decipher the secret language of light in the deep sea. His team’s work has revealed that bioluminescence is actu