Articles - Canine Vision - News and Articles

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Articles : Canine Vision
Posted by c0ntrite on 2008/2/3 19:15:25 (3703 reads)


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. Figure 1 is a rough guesstimate of what a dog and human might see when viewing a color band (the electromagnetic spectrum).

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These differences in visual ability make sense in light of evolutionary theory. Good depth perception and visual acuity are necessary for a primate (from which humans evolved) jumping from tree limb to tree limb. Good color vision enabled this primate to choose the ripest and most nutritious fruit. The canine, on the other hand, is well adapted as a nocturnal hunter of camouflaged prey.

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Articles : Raw Feeding
Posted by dogengine on 2007/2/1 12:10:00 (3325 reads)

Raw feeding is the practice of feeding domestic dogs and cats a diet primarily of uncooked meat.

Domesticated dogs, which are a classified as a subspecies of wolves, and cats, which are obligate carnivores, would have a diet largely consisting of fresh prey in the wild. Canids are known to eat fruit and vegetable as part of their natural diet.

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Articles : Ancient Dog Breeds
Posted by dogengine on 2007/2/1 11:50:00 (4303 reads)

Fourteen ancient breeds of dog have recently been identified through advances in DNA analysis. These breeds of domesticated dog show the fewest genetic differences from wolves. The breeds are geographically diverse, including dogs from Siberia, Japan, Alaska, China, Tibet, and Africa.

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Articles : Truth About Rabies
Posted by dogengine on 2007/2/1 11:10:00 (7312 reads)

Myth: All dogs have rabies.
Fact: Not all dogs have rabies. Only rabid dogs have rabies. All mammals are believed to be susceptible to the infection. Dogs have to be exposed to the virus to become rabid, just like any other mammal.

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Articles - Canine Vision - News and Articles

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