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Structural absorption by barbule microstructures of super black bird of paradise feathers [Nature Communications]

Keywords : biomechanics, optical materials and structures, sexual selection

par Frédéric Magné - publié le

Many studies have shown how pigments and internal nanostructures generate color in nature. External surface structures can also influence appearance, such as by causing multiple scattering of light (structural absorption) to produce a velvety, super black appearance. Here we show that feathers from five species of birds of paradise (Aves : Paradisaeidae) structurally absorb incident light to produce extremely low-reflectance, super black plumages.(...)

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