In nature, many organisms produce colorful color. From the colored principle, its color may divide into chemistry color and the physical color generally. Many plants and animals color in nature is not derived from the pigment, but from the interaction of light and surface. To further understand the rules of color rendering in the nature, the structure of the feather samples were observed by optical microscopy and scanning electron microscopy (SEM). Colored feather consists of many barbules and is closely arranged. Pores between each barbule have different sizes, showing a grid shaped structure. Due to the different structure of the cycle and the absorption of visible light at different wavelengths, the feathers show a different color.
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