Puffins have fluorescent beaks and scientists don't know exactly why

Beaks of well-known seabirds have previously unknown patterns that are only revealed to human vision under a UV light source: https://ift.tt/2uSMKWR #Headlines by: Josh Gabbatiss Original Post: https://ift.tt/2GIYm03 https://ift.tt/2Jr4ewz
source: https://droolindognews.blogspot.com/2018/04/puffins-have-fluorescent-beaks-and.html