THE REINDEERS EYES ARE SWITCHING COLORS

The reindeers eyes are switching colors depending on the season of the year. The contexture under their retina gets blue on the winter, and therefore more sensitive to light.

It is the Swedish radio that tells about this Norwegian/British study.
The contexture under the retina gets golden colored under the summer, and switches to blue when it gets to winter.

The study was made by studying 50 different reindeers, when some of them got slaughtered under the summer, and the rest of them under the winter.

According to the scientists, reindeers are the only mammal that switches its color of their eyes by the seasons.

The scientists will publish their results in Proceedings of the Royal society AB.