How does your dog smell? Very well, as it happens With up to 100 times as many olfactory receptors as humans, dogs use their sense of smell to see and interpret their world, just as we do with our eyes. A dogs keen sense of smell is helped by a wet nose which has a layer of mucus that absorbs some scent molecules more quickly, allowing even the faintest scent to be detected and followed. And its not just specialist hounds such as gun, drug and bomb detection dogs that have this amazing ability.
