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'''Dogs can see colors'''

Dogs not only see in shades of gray but also can see distinct colors contrary to what most people belief. About one hundred years ago some scientific tests were made to find out more about the color vision of dogs. But these tests weren't that scientific as they thought and the researchers concluded only that ''color vision doesn't play a part in the daily life of a dog''. Only about 90 years later distinct researches have shown that '''dogs can perceive colors'''. Neitz, Geist and Jacobs researched in 1989 the color vision of domestic dogs and found the following facts: # Dogs have two different color receptors in their eyes and therefore are dichromats. # One color receptor peaks at the blue-violet range, the other at the yellow-green range. # Conclusion: '''Dogs are green-blind''' which is one form of red-green color blindness also called deuteranopia.

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14y ago

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