Unseen Marvels: 18 Animal Senses Outperforming Human Perception in Astonishing Ways
The Dog's Nose

Dogs possess an olfactory sense far superior to ours. Their noses can detect scents at concentrations nearly 100,000 times dilute than humans can perceive. This extraordinary sense of smell is not just for tracking down food; it can also detect diseases, explosives, drugs, and even emotions in humans.