Our famous Rudolph has a shiny red nose to help him cope with the darkness, but, real life isn’t that way, reindeer don’t come with shining red noses. But, they do have a certain magic, and that magic is in the eyes. Part of the reindeer eye change from gold to a winter blue. This improves their ability to use light when the days become shorter, so a study says. You can read all about it on this website, just click on the picture.