Scientists say that there was life on earth 3.2 billion years ago. Religious leaders do no agree. Who is right and who is wrong. Back in the 18th century they did claim that blood sucking leeches remove poison. They don't say that any more.Scientists say that there was life on earth 3.2 billion years ago. Religious leaders do no agree. Who is right and who is wrong. Back in the 18th century they did claim that blood sucking leeches remove poison. They don't say that any more.
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