How A Dogs Senses Compare To Humans

In part 2 of our series, Canine Evolution and How It Effects Your Dogs Behavior, we looked at the evolution of current domestic dogs.  Knowing that domestication of dogs happened over 1000’s of years can help us to better understand some of the most basic drives influencing their current behavior. In part 3 we will take a look at how senses such as smell, sight, and hearing can play a role in your training and interaction with your dog. A dog’s sense of smell is 10,000 to 100,000 more acute than that of humans. While humans top out with about 50 million scent receptors, depending on it’s breed, a dog can have upwards of 300 million scent receptors. To better understand this Alexandra Horowitz, a dog-cognition researcher at Barnard College, uses the following analogy:  While we might notice if our coffee has had a teaspoon of sugar added to it,

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