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There are no blue tigers.No blue bats, no blue squirrels, or blue dogs…

- - - - The blue color isn’t from a pigment.
        
        The blue comes from the shape of the wing scale itself
        
        when I learned how this
        works, it kinda blew my mind
    - - ike “I’m toxic”, or “I’m a male
        and this is my territory”
      - but not all butterfly colors are created equal.
      - If we zoom way in on a butterfly wing, we see the Oranges, reds, yellows browns…those scales all contain pigments
        
        Black scales absorb all colors.Animals, from butterflies to birds to you and me
        
        don’t make these pigments from scratch,
        they’re made from ingredients in our diet.
        
        They’re born gray, but turn pink thanks to pigments
        called carotenoids
- - - - That’s how we get this awesome iridescent blue.
  - - - The microscopic light filter is broken.