Super-black feathers can absorb virtually every photon of light that hits them

Male Birds of Paradise have patches of super-black plumage that absorb 99.95 percent of light. New research identified their feathers’ microscopic structures that make them look so very dark.

This bird's feathers are so black they absorb 99.9% of light

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Evolved illusion—blackest black gives bird of paradise an edge

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Which color absorbs more heat, blue or black? - Quora

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