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How Squids' & Octopuses' Change Color

squid octopus color biological nanostructures

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#1    Still Waters

Still Waters

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Posted 25 July 2013 - 08:38 PM

Color in living organisms can be formed two ways: pigmentation or anatomical structure. Structural colors arise from the physical interaction of light with biological nanostructures. A wide range of organisms possess this ability, but the biological mechanisms underlying the process have been poorly understood.

http://www.scienceda...t Science News)

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