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Your nose can smell at least 1 trillion scents
“As [Leslie] Vosshall put it: ‘The world is always changing. Plants are evolving new smells. Perfume companies are making new scents. You might move to some part of the world where you’ve never encountered the fruits and vegetables and flowers that grow there. But your nose is ready. With a sensory system that is that complex, we are fully ready for anything.”
