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4 years ago|3.5K views

The Great Sperm Race (Channel 4 Documentary)

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The Great Sperm Race tells the story of human conception as it's never been told before. With 250 million competitors, it is the most extreme race on earth and there can only be one winner. It's the most extreme race on earth: a contest with 250 million competitors and only one winner. The story of human conception, told using human-size sperm in stunning locations.
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