Imaging Photosensitive Corals BY Patricia Daukantas Using the L-SPI microscope to visualize the re-infection of an Astrangia polyp (cyan from reflected light) with algae (red from chlorophyll fluorescence), injected by pipette into the mouth of the polyp. [Image: Loretta Roberson] In the laboratory, some photosensitive corals exhibit their own version of the observer effect: Exposing...Continue Reading