Why Reindeer Eyes Change Color with the Seasons: Reindeer Eye Color Mystery Solved Reindeer, also known as caribou in North America, inhabit some of the coldest and darkest parts of our planet. These remarkable creatures face months of near. Do reindeer's eyes really change color? If so, why, and how does this adaptation actually work in the wild?
During the summer, reindeer eyes glow a golden hue, reflecting much of the bright sunlight that bathes the tundra. But as winter sets in, their eyes turn a deep, mysterious blue. This change isn't just for aesthetics; it's a vital adaptation for survival.
Reindeer eyes literally change color with the seasons! Reindeer "adapt" their eye structure to better find food and escape predators during the long, dark months of winter, scientists say. On Christmas Eve, a group of reindeer 'fly' across the sky, dragging Santa Claus and his sleigh full of presents.
Reindeer eyes have been examined by scientists and they've made a startling revelation about how and why they change color depending on the season. This change is more than just cosmetic and are an important adaptation to the change in light. What color are reindeer eyes? Depends on the season.
An astrophysicist and an eye expert teamed up to solve the mystery of how and why reindeers' eyes switch from yellow to blue in wintertime. Why do reindeer's eyes change color with the seasons? In this video, Alex Dainis explains why reindeer eyes change color from orange-gold in the summer to blue in the winter. This change allows them to UV light in the winter time, which might seem counterintuitive because of their bright, snowy habitat.
However, the reindeers' food source is a light colored lichen that absorbs UV. The iridescent layer is a colour-changing marvel that transformed with the seasons. When it is carved in two like this, the startling colours of the reindeer eye become obvious.
Part of the national eye collection housed at the Museum, this specimen shows the interior of the creature's eye in extraordinary detail. That's because reindeer eyes change color depending on the time of year, which helps them see better in different light levels. Their blue eyes are approximately 1,000 times more sensitive to light than their golden counterparts, a crucial adaptation in the dark days of winter.
The reindeer's color-changing feat is subtle enough that it eluded the notice of scientists for many years. The tapetum lucidum, is wedged in the back of each eye behind the retina, where it helps many nocturnal mammals better see their surroundings at night.