Tis the season for singing Rudolph and putting out carrots for the reindeer on Christmas eve. Everyone knows Rudy’s nose was red, but did you know reindeer’s eyes change color?!
During the summer months their eye color is golden, then once winter sets in they start to change to a darker shade of blue which increases the scatter of reflected light behind their retina to help with night vision.
Part of the magic of being a reindeer I guess. Very cool.
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