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Thursday, October 5, 2017

How yellow and blue make green in parrots

http://ift.tt/eA8V8J Many brightly colored birds get their pigments from the foods that they eat, but that's not true of parrots. Now, researchers reporting a study of familiar pet store parakeets -- also known as budgies -- have new evidence to explain how the birds produce their characteristic yellow, blue, and green feathers.

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