From: Fiona 13/07/2000 17:26:00
Subject: swimming sperm post id: 98387
How do sperm know which way to swim? or do they just get "lucky" ;) and find their own way?

From: Lib ® 13/07/2000 18:47:00
Subject: re: swimming sperm post id: 98432
They follow a chemical trail to the egg. Not all make it. Many don't get past the cervix, and others run out of energy too soon. It is a great example of survival of the fittest with occasional exceptions.
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