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Color: it's not just for art anymore. From red dwarfs to green algae to... uh... brown squirrels, science is chock full of color, too!
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Sources:
[Trivia Question]
Longest-lasting rainbow
https://www.smithsonianmag.com/smart-news/9-hour-rainbow-sets-new-guinness-record-180968527/
[Fact Off]
Crustacean larvae camouflaged glass eyes
https://slate.com/technology/2023/02/shrimp-larvae-eye-glitter-nanotechnology.html
https://www.sciencenews.org/article/glassy-eyes-young-crustaceans-predators
Brainbows (fluorescent cell visualization using lots of colors)
https://blog.addgene.org/evolution-of-brainbow-using-cre-lox-for-multicolor-labeling-of-neurons
https://link.springer.com/chapter/10.1007/978-981-19-1352-5_6
https://www.eurekalert.org/news-releases/698637
https://www.eurekalert.org/news-releases/619298
[Ask the Science Couch]
Color psychology and emotional responses
https://www.frontiersin.org/articles/10.3389/fpsyg.2015.00368/full
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2831986/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4880552/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1612362/pdf/brmedj02002-0030.pdf
https://www.nature.com/articles/435293a
[Butt One More Thing]
Caca-dauphin, the fashionable baby poop color