[QUOTE=The Gaspode]
I hate to do this, but do you have a cite for that?
I’m pretty sure Romans 2k years ago had a clear understanding of this. Also, consider the crime of Onan in the OT, spilling his seed on the ground.
I’ll back him up that a few cultures didn’t or don’t make the connect between sex and pregnanacy. Malinowski wrote that the Trobriand islanders thought that pregnancy was caused by an ancestral spirt entering the womb as a woman bathed in the island lagoon. Children are recognized as looking like their fathers, of course, but thats’s jsut because intercourse during pregnancy “shapes” them in his image.