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An adult female Hawaiian bobtail squid, Euprymna scolopes, with its mantle cavity exposed from the underside. Some internal organs are visible, including the two lobes of the light organ that contains bioluminescent bacteria, Vibrio fischeri. The light organ includes accessory tissues like an ink sac (black) that serves as a shutter, and a silvery reflector that directs the light out of the underside of the animal.
Margaret J. McFall-Ngai, Carnegie Institution for Science/California Institute of Technology, and Edward G. Ruby, California Institute of Technology.
The labs of Margaret J. McFall-Ngai, Carnegie Institution for Science/California Institute of Technology, and Edward G. Ruby, California Institute of Technology.
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