These bird feathers are so black your eyes can't focus on them

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These bird feathers are so black your eyes can't focus on them
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It's like, how much more black could this be?

On the left, a normal black feather from a Lesser Melampitta. On the right, a super-black feather from the Paradise Riflebird.are flat, and look like fractals; when you zoom in using a microscope, each branch of the feather looks like a tiny, flat feather.

But other factors can also influence evolution’s course, including random chance or sexual selection. As my colleague Rick Prum points out in his new book “ ,” mate choice is a powerful force driving evolution. In Birds of Paradise, super-black feathers help male birds look more beautiful to a female’s eye.

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