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Dog Noses, Human Noses
Age 9 · Animals
A dog’s nose has many more scent-catching cells than a human nose. This helps dogs notice smells that are too faint for people.
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Age 9: open this week
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In the picture
- Scent receptor cells in the dog nasal cavity: a crowded patch
- Scent receptor cells in the human nasal cavity: a small patch
Examples
- A dog can sniff out a treat hidden under a sofa cushion.
- A search dog can follow a faint scent trail to find a lost person.
Key takeaways
- Dogs have far more scent receptor cells than people.
- More receptor cells help a dog detect weaker smells.
Quiz: Dog Noses, Human Noses (Age 9)
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Inside whose nose is there a crowded patch of scent receptor cells?
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What do dogs have far more of than people?
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What does having more scent receptor cells help a dog do?
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