Rachael is a writer and digital content producer at IFLScience with a Zoology degree from the University of Southampton, UK, and a nose for novelty animal stories.

explains Foote—the tapetum is the reason cat or raccoon eye reflect eerily at night. So why do reindeer tapeta turn blue in winter? The answer probably has to do with maximizing light absorption ...

And as our new study shows, their eyes undergo physical change as the seasons turn ... daytime sky-blue , which is caused by scattering of sunlight by air molecules. Wolves and reindeer both ...

Rudolph’s red nose may have gone down in history, but research says it was probably his shining blue eyes — a common trait among reindeer — that helped keep him and the rest of Santa’s ...

“Oh, I’ve got an office full of eyes,” Jeffery ... until it’s mostly blue—can stretch up to 11 hours at a time, casting the snow-draped tundra in tones of teal. Reindeer tapeta extracted ...

Rudolph’s red nose may have gone down in history, but research says it was probably his shining blue eyes – a common trait among reindeer – that helped keep him and the rest of Santa’s ...

While reindeer no longer live in our backyards, if they ever happen to be flying by, watch for their luminous blue eyes. It turns out they probably don’t really need a glowing red nose to see ...

During the chilly and long twilight hours of winter, reindeer make a bizarre change unique amongst daytime mammals – their eyes change color. Researchers now believe this oddity gives them ...

They generally do this with the short blue photoreceptors called cones present in their eyes. Earlier studies have shown that reindeer eyes change from golden in the summer and a vivid blue in the ...

Bowlhover/Wikimedia Commons One day, Jeffery received a box in the mail out of the blue. It contained two jars filled with reindeer eyes from a slaughterhouse in Norway. One jar was labeled summer ...