Why is blue so rare in nature?
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Among living things, the color blue is oddly rare. Blue rocks, blue sky, blue water, sure. But blue animals? They are few and far between. And the ones that do make blue? They make it in some very strange and special ways compared to other colors. It’s Okay To Be Smart investigates.
What is scientists best theory for why almost all of nature’s blue made from structures and not pigments?
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