Science Reindeer eyes turn blue in winter, study finds

When the Arctic goes dark for the winter, reindeers eyes change from gold to blue, say scientists. 

By , Livescience.com Contributor

© Kia Hansen

Reindeer may be best known for fictional Rudolph's glowing red nose, but now scientists find the animals can alter color elsewhere as well — the backs of their eyeballs change from gold in the summer to blue in the winter.