How are detection dogs superior to humans in identifying odors?

They have far more olfactory receptors in their noses that humans do -- dogs have 200 million, humans have six million. The olfactory area of the brain is also proportionally bigger, Otto said. They have to learn human scent and to discriminate human scent from other smells and then to differentiate between humans.

Explanation:

Brainliest please.

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