@promaprodipti: A dog’s world is built largely through smell. And certain scientific reasons why a dog can instantly sense good/bad people. * Dogs have about 220 to 300 million olfactory (smell) receptors, depending on the breed. Humans have only about 5 to 6 million. * The part of a dog’s brain devoted to analyzing smells, the olfactory bulb, is proportionally about 40 times larger than a human’s. * A dog’s nose can detect some odors at concentrations as low as parts per trillion, making it up to 10,000 to 100,000 times more sensitive than a human nose, depending on the odor.

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Wednesday 08 July 2026 01:45:02 GMT