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Posts tagged tapetum lucidum

February 27, 2018

 

In Ancient Egypt, one story was that cats' eyes always reflected the sun and that's why they glowed at night.

Why Do Cats’ Eyes Glow At Night?

Cats and many other nocturnal animals have a part of their eye called the tapetum lucidum.

March 26, 2014

 

Due to the extreme light conditions of the Arctic, reindeer also have no circadian rhythm.

Reindeer Eyes

Researchers have found that depending on the season, the eyes of Arctic reindeer change from gold to blue.

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