Sizing Up Sperm: The Most Extreme Race on Earth (Video)

The Great Sperm RaceWow, I had no idea that sperm have to fight Morlocks along the way! National Geographic presents Sizing Up Sperm:

Each of us was the grand prize in an ultimate reality competition, the amazing race a sperm makes on the road to fertilization.

Millions of sperm compete while overcoming armies of antibodies, treacherous terrain and impossible odds to reach their single-minded goal.

To illustrate the full weight of the challenge, Sizing Up Sperm uses real people to represent 250 million sperm on their marathon quest to be first to reach a single egg.

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  • justagirl

    i was an egomaniacal sperm. when i won the race, i made fun of the others from the inside, and they were sore losers. true story.

  • justagirl

    i was an egomaniacal sperm. when i won the race, i made fun of the others from the inside, and they were sore losers. true story.

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