Fairy Penguins Know Best
Optics & Photonics Focus
Volume 12 Story 9 - 29/3/2011

Arrays of keratin nanofibers

A close up of a Fairy Penguin’s feather barb. The keratin nanofibers produce the characteristic non-iridescent blue color by coherent light scattering and constitute a novel morphology for feathers. Photo by Liliana D’Alba.
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Arrays of keratin nanofibers. A close up of a Fairy Penguin’s feather barb. The keratin nanofibers produce the characteristic non-iridescent blue color by coherent light scattering and constitute a novel morphology for feathers.