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Archive for November 9th, 2010

How does your dog see?

Tuesday, November 9, 2010
posted by Jim Murphy

dog-glassesWe know that a dogs sense of smell is much better than ours.  What about the way he sees?  When it comes to low light, he could see about three times better than us. This is because his pupils are large and he has many more rods than cones in his retina.  His peripheral vision is also much better than ours.  He can see roughly 250 degrees.  We see colors much better that our dogs as well as sharper images.  What dogs see at 20 feet, we could see clearly at 75 feet.  Canine eyes lack one of the three sets of receptors found in human eyes.  So don’t think that your dog will see the color of the big red dog toy you bought him for Christmas. Dogs don’t see reds and greens. They do see blues and yellows.