A dog’s sense of smell is one of the keenest in nature. If a pot of stew was cooking on a stove, a human would smell the stew, while the dog could smell the beef, carrots, peas, potatoes, spices, and all the other individual ingredients in the stew. In fact, if you unfolded and laid out the delicate membranes from inside a dogs nose, the membranes would be larger than the dog itself.