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See how your time inside the womb has determined your destiny on the outside.
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Learn how you became the unique individual you are.
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A genetic mutation from generations ago causes half of this family to grow 6 fingers.
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An extraordinary 70-year-long study in longevity has shown some shocking results.
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Ectodermal Dysplasia can't stop this internationally recognized model.
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A misfiring hormone long before birth can change gender later in life.
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A baby's parents decide he will undergo surgery to repair a cleft lip.
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A surfer's risk taking may be tied to testosterone exposure in the womb.
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A decades-long study examines how unborn children are affected by stress.
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A small gene pool has lead to color-blindness spreading throughout an island population.
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Two men with nearly identical lifestyles, but vastly different metabolisms.