The Dog's Anatomy, or the Smell?

Dogs have hundreds of millions more ofactory receptore cells in their nose than then we do, as well as a much relatively larger factory lobe in their brains. They can smell something like seven times a second, whereas we really don't. And the result is that smells are, for them, just information. So it seems magical to us that a dog could smell disease, but not a scent, right? Ive: It's telling us something more profound about our way of drawing inferences from behavior.