Men are more attracted to women whose bone structure is similar to their own mothers. It's called "sexual imprinting".
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Studies show that financially stable men prefer smaller breasts.
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It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
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Intelligent people have more zinc and copper in their hair.
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The offspring of two sets of identical twins are legally cousins but genetically siblings.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Yawns are more contagious among people with closer relationships.
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About 3000 years ago, most Egyptians died by the time they were 30!
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