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Brookfield Zoo on Twitter: "Blue is the rarest color in nature and that's what makes the turquoise dwarf gecko that much more special! #FunFactFriday #BrookfieldZoo https://t.co/MVSrggk6P5" / Twitter
What is the rarest color in nature? - Victoria Hwang - YouTube
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It's the rarest color in nature, and it looks great in a garden | Home & Garden | annistonstar.com
What is the rarest color that appears in nature? - Quora
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