Science Explains Importance of Rudolph’s Red Nose

They may not have sorted out how Santa’s reindeer can fly, but scientists say there is an optical explanation for just how beneficial it is that Rudolph’s nose burns red and bright. Reporting in the journal Frontiers for Young Minds, a Dartmouth anthropology professor says that Arctic reindeer are (at least among mammals) uniquely qualified to see ultraviolet light—a useful trait in the darker winter months when the sun is low on the horizon and casts more UV light than usual. The reflective tissue in their eyes turns a deep blue to help them see in the dark. The problem is fog extinguishes this hue, reports Phys.org. Rudolph’s glowing red nose, then, solves this conundrum when it’s time to steer Santa’s sleigh through the fog. Unfortunately, that red nose comes with an unfortunate side effect. Read more on Newser…