Here are some interesting facts about the sense of smell!

Moths can smell a single molecule (the moth pheromone-bombykol, try using that one for Scrabble)

Taste is mostly, 75% smell

Dogs can distinguish non-identical twins by smell, but not identical twins

All smells are small molecules (less than 350 molecular mass)

We can smell Happiness

Everyone has a unique smell – except identical twins

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