Why Are Some Birds Blue?

One of the spectacular details of animals in our world is just how varied their colors can be. When you look at birds, for example, you’ll see everything from mundane grays to iridescent blues. So why don’t we shine with the same iridescence of birds?

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SOURCES:
https://ucmp.berkeley.edu/glossary/gl...
https://ia800502.us.archive.org/25/it...
https://www.iap.tuwien.ac.at/~gebeshu...
https://wonders.physics.wisc.edu/prisms/
https://academy.allaboutbirds.org/how...
https://www.livescience.com/why-blue-...
https://academy.allaboutbirds.org/fea...
https://elifesciences.org/articles/71179
https://journals.physiology.org/doi/f...
https://elifesciences.org/articles/71179
https://scitechdaily.com/microscopic-...

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