When it comes to dogs, you've probably noticed that most of them have brown eyes, which is why meeting one sporting a different shade really makes them stand out. While you've probably seen a few pups ...
Animalogic on MSN
From Butterflies to Birds The Mystery of Nature’s Rarest Color
Scientists call blue the impossible color, a shade evolution struggles to make. Through complex optics and nanostructures, certain species have found ways to reflect just the right wavelengths of ...
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