Roughly 90% of the world's population live in the northern hemisphere.
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Only about 2% of the world population has green eyes.
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There are approximately three chickens for every human on Earth.
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Denmark has twice as many pigs as there are people.
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Nearly half of the entire world's adult population has never drunk alcohol.
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About two hundred babies are born worldwide every minute.
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Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
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