mymarks
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Reindeer eyes seasonally adapt to ozone-blue Arctic twilight by tuning a photonic tapetum lucidum | Proceedings B | The Royal Society
https://royalsocietypublishing.org/rspb/article/289/1977/20221002/86488/Reindeer-eyes-seasonally-adapt-to-ozone-blue
Abstract. Reindeer are the only mammal known to seasonally adapt their eyes to the extremely blue colour of the extended twilight that occupies a large par