So Apparently Platypuses Glow in the Dark

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Of all the weird animals that exist in the world, platypuses are up there with the weirdest, and last year scientists discovered something even more peculiar about their fur: it glows! What may be even more strange, though, is how little we know about this new illumination!

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Sources:
https://www.australiangeographic.com.au/topics/wildlife/2017/07/the-mystery-behind-a-scorpions-glow/
https://www.smithsonianmag.com/smart-news/puffin-beaks-are-fluorescent-and-theyre-not-only-ones-180968724/
https://oceanexplorer.noaa.gov/facts/living-light.html
https://eamcetzoology.blogspot.com/2009/09/bioluminescence-vs-fluorescence.html
https://www.degruyter.com/downloadpdf/j/mamm.1985.49.issue-2/mamm.1985.49.2.249/mamm.1985.49.2.249.xml
https://blogs.scientificamerican.com/artful-amoeba/for-some-reason-new-world-flying-squirrels-fluoresce-pink/
https://www.degruyter.com/view/journals/mamm/ahead-of-print/article-10.1515-mammalia-2020-0027/article-10.1515-mammalia-2020-0027.xml
https://academic.oup.com/jmammal/article-abstract/100/1/21/5299493
https://www.researchgate.net/publication/330637392_Ultraviolet_fluorescence_discovered_in_New_World_flying_squirrels_Glaucomys
https://www.smithsonianmag.com/smart-news/platypuses-glow-green-under-ultraviolet-light-180976196/
https://www.sciencenews.org/article/platypus-glow-blue-green-ultraviolet-light-fluorescent-fur
https://www.nature.com/articles/d41586-017-05586-5

Image Sources:
https://commons.wikimedia.org/wiki/File:Trirachodon.jpg
Platypus specimen images courtesy of J. Martin, Northland College, in Anich et al. 2020