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Author Topic:   The "Logic" of the creationist....
Percy
Member
Posts: 22392
From: New Hampshire
Joined: 12-23-2000
Member Rating: 5.3


Message 39 of 69 (15643)
08-18-2002 11:10 PM
Reply to: Message 38 by degreed
08-18-2002 10:38 PM


degreed writes:

The point rests in that Nature article in my previous post. If the Y chromosome study reported in this article puts Sapiens origins at no more than 50,000 years ago, then we reeeeally need to find an ancestor who was turning into Sapiens at just about that time.
First, it's difficult to have a meaningful discussion about an article only you have access to.
Second, you've misunderstood the study. The 50,000 year date for Y-chromosome Adam is not for the origin of Homo sapiens, but for the most recent common ancestor of all male Homo sapiens alive today. There is also a Mitochondrial Eve, the most recent common ancestor of all female Homo sapiens alive today, thought to have lived around 140,000 years ago.
The date of the most recent common ancestor is unrelated to the date of emergence of a new species. The age of Y-chromosome Adam is not the same as the age of the Homo sapien species. And neither is the age of Mitochondrial Eve, obviously not since she has a widely divergent date from Y-chromosome Adam. It would be impossible for females to have become Homo sapiens before males, though I grant it makes lots of sense from other perspectives.
--Percy

This message is a reply to:
 Message 38 by degreed, posted 08-18-2002 10:38 PM degreed has replied

Replies to this message:
 Message 43 by Andya Primanda, posted 08-19-2002 6:04 AM Percy has not replied
 Message 46 by degreed, posted 08-19-2002 8:23 PM Percy has not replied
 Message 64 by peter borger, posted 08-22-2002 3:00 AM Percy has replied

  
Percy
Member
Posts: 22392
From: New Hampshire
Joined: 12-23-2000
Member Rating: 5.3


Message 65 of 69 (15931)
08-22-2002 1:05 PM
Reply to: Message 64 by peter borger
08-22-2002 3:00 AM


As I said to degreed, it's difficult to have a meaningful discussion about an article you have no access to. I stopped subscribing to Nature because they have no web-only category, which is how I subscribe to Science. With Nature there is no way to prevent 52 copies per year appearing in your mailbox - somewhat ironic for a journal named Nature to kill so many trees.
Why don't you scan it in?
--Percy

This message is a reply to:
 Message 64 by peter borger, posted 08-22-2002 3:00 AM peter borger has not replied

  
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