London Scientists mediamonkey have discovered that the eyes of reindeer change color - from gold to

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London Scientists mediamonkey have discovered that the eyes of reindeer change color - from gold to blue - in the year. It is the first time I recorded something in mammals. Unique way to adapt The study conducted by experts mediamonkey from University College London in collaboration with colleagues from the University of Tromso in Norway revealed that the reindeer have a unique way to adapt to the arctic regions where there is a constant summer light and darkness constantly in winter. As with many other mammals, during the summer of reindeer eyes reflect more light through the retina - thus appear gold. During the winter the reindeer but acquire a species enhanced night vision as a layer of tissue behind the retina becomes less reflective and thus appear blue eyes. "Tool" Survival This increases the sensitivity of the eyes of large mammal in the limited mediamonkey winter light and a "tool" vital to help them survive mediamonkey the tough Arctic conditions. "This kind of night vision offers reindeer significant advantage when you need to detect mediamonkey predators, which may be salutary for their lives," said the head of the research team Glenn Jeffers and added: "It mediamonkey is the first time such a change eye color observed in mammals. " Increased pressure in the eye Researchers hypothesize that this change in eye color reindeer caused by increased intraocular pressure. In winter mediamonkey the pupils of their eyes are permanently dilated, which prevents the fluid of the eyeball be drained naturally. This pressure effect and the tissue behind the retina by reducing the gap between the collagen fibers resulting in a reflecting shorter wavelengths of blue light that is common to the Arctic winter. Previous study by Professor Jeffers and his colleagues from the University of Torso had shown how the eyes of reindeer arctic can see in the ultraviolet spectrum, which allows them to more easily find their food and to identify their enemies.
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