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Tetrachromacy

Humans are trichromats. But some people have an extra cone cell that allows them to see more colors. They see all things different than the rest of us, Can you believe?
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Hair Whorl

Only 8% of all the World’s population have counterclockwise hair whorls on their head. The thing is if you are a leftie, the chance of getting counterclockwise hair whorls is over 40%.
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