Dogs excel at night vision and the detection of moving objects. The picture below is a rough guesstimate of what a dog and human might see when viewing a color band.
Sunday, 3 July 2011
Canine Vision
I didn't know this. Dogs are red-green color blind. They see a brighter and less detailed world when compared to humans. Peripheral vision is better than humans (dogs see more of the world), but distance is not judged quite as well.
Dogs excel at night vision and the detection of moving objects. The picture below is a rough guesstimate of what a dog and human might see when viewing a color band.
Dogs excel at night vision and the detection of moving objects. The picture below is a rough guesstimate of what a dog and human might see when viewing a color band.
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Not sure I can agree with this example. One of our dogs has a stuffed toy that looks like a "jack" (remember the kids game? jacks?). The "arms" of the "jack" are red, yellow, orange, green, blue, and purple. He will ONLY pick it up by the red leg. No matter what you do with it to try to get him to pick it up by one of the other colors, he won't. If you throw it, he'll chase it but will then roll it over until he can pick it up by the red leg. He's on his 3rd one of these toys... his favorite and even when new and untouched by him to "mark" the red leg with his mouth. Even with a new one he's never touched before, he'll only pick it up by the 'red' leg. This chart indicates that he wouldn't be able to see a difference between the red, orange, yellow, and green legs. Just doesn't seem likely. They may not see those colors as distinctly as we do, but he MUST be able to see the red in order to pick it out each time.
Photoshopped!
signed,
ur dog
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