Dog eyes "see" the world and feel the wonder of nature.Nature’s supercomputer lives on your dogDogs are the most famous. Through their sense of smell, dogs can tell which direction a person traveled and even can distinguish between identical twins.
Dogs can be trained to detect just about anything, including electronic devices.
How Your Dog's Nose Knows So Much | In depth explanation。
Why is a dog's sense of smell so sensitive?
1A dog's nose is moist, which helps capture odor molecules.
2: There are two different passages in a dog's nasal cavity, one of which is used to detect odors.When a dog inhales, air enters the channels that sense odor molecules.
3: The mucosal area of the dog's olfactory area is 130 square centimeters or even larger, while the mucosa area of the human olfactory area is only about 5 square centimeters.
4: Dogs have 50 times the number of cells used to sense smells than humans.