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	How fast does sperm swim ? John and Abby, email
	About 3 mm per hour ! Interestingly, mice sperm are very altruistic and line up nose-to tail and swim along in a big convoy thus helping more of them make it further. Coffee affects sperm motility. NASA send sperm into space to monitor its performance in zero gravity
	July 2002

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Listen to this as part of the show: 20th Jul 2002 - Science of Left Handedness - Chris McManus
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