Post Type

Do Dogs Only See in Black and White? And other Dog Myths Answered

Photo by S. KleinWe love our dogs. They become one of the family and live in our homes right along side us, eating when we eat, watching television beside us and walking in the park with us. Our dogs are an important part of family life and living in such close proximity has birthed some confusing ideas about them that science does not always condone. Many of these false ideas about dogs have been passed down from one generation to the next and simply accepted as the truth. Some of the dog-myths have been accepted because they just sound right. Here are a few of the most popular ideas about dogs and the truth according to scientific research.

Myth: Dogs see everything in only black and white.

Dogs are not color blind but they do have a less complex vision of the color spectrum than humans do. What we see as bright red, they see as a very faded pink. There is much less contrast and depth to color for dogs. A dog’s color vision is actually similar to what a human calls color blindness, which is not simply seeing everything in black and white. People who are color blind can actually see colors, but not the various shades or distinct hue of each color. This is similar to how a dog sees color.

Myth: Dogs have night vision.

Yes, dogs do have a much better night vision than we do. Dogs have a mirror-like structure in their eyes which reflects light, giving them a better chance to register what little light there is in even the darkest of night. This is also what causes their eyes to seem to glow at night and in photographs. Their eyes are simply being efficient reflectors.

Myth: Dogs age seven years for every human year.

This is a popular belief because it is easy for us to work out, but it is false. A dog ages in a completely different way than a human and cannot be compared in this way. The size and breed of a dog makes a difference in its’ life-span. Surprisingly, a small breed dog will usually live longer than a dog of a larger breed. How a dog ages is as individual as the dogs themselves.

If we had to use a formula to work out the age of a dog in comparison to us, it would be close to this: The first year of a dog’s life is similar to the first sixteen of a human life. At two-years-old a dog is like a human twenty-four-year-old, and at the three year mark, a dog is like a thirty-year-old human. After that, add about five years to each year of your dog’s life to determine your dog’s age.

Myth: A dog’s mouth is cleaner than a human mouth and contains an antibiotic.

While it is true that dog saliva contains lysozyme; an enzyme that destroys harmful bacteria, it is not recommended to be good for human wounds. Allowing a dog to lick their own wounds is fine as long as they do not pull out stitches or become too aggressive and open old wounds. It has also been proven that the stimulation of the tissues and blood vessels surrounding a dog’s wound is beneficial to the healing because it helps to increase the blood flow and promotes the growth of new capillaries. But the idea that a dog’s saliva is somehow an antiseptic for a human wound is false and could be harmful to both. (Sources:, and We know that your furry friend is a beloved part of your family. And so he or she should be. Our dogs add a special warmth and comfort to our days at home and out and about. For all of your dog supplies just click on over to The Pet Supply Company website!



About The Author

Susie Klein is a freelance writer who loves writing, her husband, her kids and her dog. The order may vary from time to time.


Leave a Comment

Your email address will not be published. Required fields are marked *