Life: The Science of Biology 12e Student Resources is no longer available and it was replaced by Biology and Life Sciences.
Media Clip 25.8: Flashing Dinoflagellates
This remarkable video shows the flashes of light produced by bioluminescent dinoflagellates as they are ingested and expelled by feeding barnacles. These dinoflagellates produce light when they encounter a shear stress sufficient to deflect their cell membrane, which in turn initiates an action potential that triggers the light-producing chemical reaction.
Textbook Reference: Chapter 25 Investigating Life conclusion