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A New Blue: Mysterious origin of the ribbontail ray's electric blue spots revealed - EurekAlert
Researchers have discovered the unique nanostructures responsible for the electric blue spots of the bluespotted ribbontail ray (Taeniura lymma), with possible applications for developing chemical-free colouration. The team are also conducting ongoing research into the equally enigmatic blue colouration of the blue shark (Prionace glauca).
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