MAY 31, 2018 6:58 PM PDT

Some Reindeer Have Eyes That Change Color

WRITTEN BY: Carmen Leitch

Learn more from this SciShow video about Norwegian reindeer with eyes that can change color with the seasons. Researchers found that this unique skill has a special purpose; in the low light of the Arctic region, the retinas of the reindeer become slightly more sensitive.

Some animals have a layer of tissue behind their retinas called the tapetum lucid. It is what causes animal's eyes to seem to glow at night when light shines on them; the layer is reflecting the light back. While most animals eyes appear yellow when light shines on them, the reindeer's eyes turn blue in the winter. Researchers found that it seems to enable the animals to see a bit more, although it may make what they see a little unfocused.
About the Author
  • Experienced research scientist and technical expert with authorships on over 30 peer-reviewed publications, traveler to over 70 countries, published photographer and internationally-exhibited painter, volunteer trained in disaster-response, CPR and DV counseling.
You May Also Like
DEC 10, 2020
Plants & Animals
The Surprising Way Honeybees Protect Hives from Hornets
DEC 10, 2020
The Surprising Way Honeybees Protect Hives from Hornets
"Murder hornets," more commonly known as giant hornets, might be new to North America, but in their native ran ...
DEC 28, 2020
Immunology
What Happens When Your Immune System Works Against You?!
DEC 28, 2020
What Happens When Your Immune System Works Against You?!
Our immune system is our army against any molecule that wants to invade our bodies like viruses, bacteria, and cancer. I ...
APR 01, 2021
Health & Medicine
Flavanol-rich Foods Protect Heart from Stress
APR 01, 2021
Flavanol-rich Foods Protect Heart from Stress
Drinking hot cocoa is comforting on cold winter nights, and new research from the University of Birmingham shows that it ...
APR 12, 2021
Space & Astronomy
5,200 Tons of Space Dust Fall to Earth Each Year
APR 12, 2021
5,200 Tons of Space Dust Fall to Earth Each Year
An international team of scientists has found that each year, 5,200 tons of dust falls from space to Earth. This far out ...
APR 17, 2021
Space & Astronomy
Dent in Earth's Magnetic Field Caused by Buried Ancient World
APR 17, 2021
Dent in Earth's Magnetic Field Caused by Buried Ancient World
Researchers from Arizona State University have suggested that two giant blobs of rock cupping the Earth's core are l ...
MAY 29, 2021
Space & Astronomy
First Matter in the Universe Flowed Like Tap Water
MAY 29, 2021
First Matter in the Universe Flowed Like Tap Water
In two separate studies, researchers led by those at the University of Copenhagen and Queen Mary University of London fo ...
Loading Comments...