Filtering light through a prism to identify tissue type

Light 'drives' adaptation; nothing 'drives' evolution (3)

See also Light ‘drives’ adaptation; nothing ‘drives’ evolution (2)
100 feet below the surface bioluminescent organisms are the dominant light source, study shows

“Luminescent marine organisms each have a unique light signature. By looking at the time series light generated by a flash within the instrument, we were able to determine who was there making the flash,” Cohen explained. “It’s a useful tool, particularly at this time of year when relatively few species are present.”
Bioluminescence is known to play a critical role in helping marine organisms avoid predators and even hide themselves in plain site. At the same time, Cohen continued, it appears that krill and potentially fish are using the additional bioluminescent light from the copepods to find food.

My comment: Nutrient-dependent pheromone-controlled quorum sensing in the light organ of bobtail squid links bioluminescence from food odors and pheromones in bacteria to the physiology of reproduction in the squid and all other living genera via the conserved molecular mechanisms of energy-dependent RNA-mediated protein folding chemistry we detailed in our 1996 review:
From Fertilization to Adult Sexual Behavior

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