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Scoobydoomed t1_j1cbkqy wrote

Reply to comment by Plonsky2 in TIL The human nose can detect over 1 trillion different scents? This is because the human nose contains around 400 different types of scent receptors, which allow us to distinguish between a wide range of smells. by theythatspeak

Yep, a dog can pick up a scent from up to 12 (yes twelve!) miles away.

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shodan13 t1_j1eqs55 wrote

Wouldn't the concentration matter way more than the distance?

I can also smell a forest fire 12 miles away..

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