It’s a burning question for many dog owner’s: how does a dog’s nose work? A lot of attention is focused on a canine’s sense of smell. Dogs use their sense of smell to guide their direction of movement and to recognize each other and their owners. Humans have around 6 million receptors to process smell, whereas a dog has around 300 million. With positive reinforcement methods, humans have been able to train dogs to recognize and discriminate between different odors to our advantage. The strength of a dog’s sense of smell usually varies breed-to-breed depending on the anatomy. Dogs with…