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Author Topic:   Human Brain Evolution Was a 'Special Event'
Wepwawet
Member (Idle past 6136 days)
Posts: 85
From: Texas
Joined: 04-05-2006


Message 3 of 65 (352684)
09-27-2006 5:29 PM
Reply to: Message 1 by skepticfaith
09-27-2006 4:39 PM


This accelerated rate of evolution is consistent with the presence of selective forces in the human lineage that strongly favored larger and more complex brains. “The human lineage appears to have been subjected to very different selective regimes compared to most other lineages,” said Lahn. “Selection for greater intelligence and hence larger and more complex brains is far more intense during human evolution than during the evolution of other mammals.”
Sounds like the authors of the paper didn't consider the possibility that goddidit.
and...
To further examine the role of selection in the evolution of brain-related genes, Lahn and his colleagues divided these genes into two groups. One group contained genes involved in the development of the brain during embryonic, fetal and infancy stages. The other group consisted of genes involved in “housekeeping” functions of the brain necessary for neural cells to live and function. If intensified selection indeed drove the dramatic changes in the size and organization of the brain, the developmental genes would be expected to change faster than the housekeeping genes during human evolution. Sure enough, Lahn's group found that the developmental genes showed much higher rates of change than the housekeeping genes.
On reading this article (not the actual paper which appeared in a 2004 edition of Cell) it appears as though what really happened is that the researchers made predictions based on the Theory of Evolution and then examined the evidence to find that those predictions in fact appear. This paper is evidence that supports the ToE rather than creation. Specifically the paper shows that the changes are not a single event, but rather a series of events which occured more rapidly in the line leading to humans and macacques than it did in less related species.
Nothing to see here folks...move along.
Edited by Wepwawet, : Clarifying the point that humans and macacques share an evolutionary line...

When science and the Bible differ, science has obviously misinterpreted its data.
- Henry Morris, Head of Institute for Creation Research

This message is a reply to:
 Message 1 by skepticfaith, posted 09-27-2006 4:39 PM skepticfaith has replied

Replies to this message:
 Message 4 by skepticfaith, posted 09-27-2006 5:41 PM Wepwawet has replied

  
Wepwawet
Member (Idle past 6136 days)
Posts: 85
From: Texas
Joined: 04-05-2006


Message 6 of 65 (352690)
09-27-2006 6:01 PM
Reply to: Message 4 by skepticfaith
09-27-2006 5:41 PM


Re: It still is 'Special'
of course they did not assume that God did it, but they still called it special - a special event.
A special event that ocurred over 20-25 million years and decided to take along primates for most of the ride? Despite the wording nobody in the paper contends that the changes ocurred due to a single event.
Even from an evolution point of view, there is a lot to see here. How did such rapid change take place in such a short time?
25 million years is a short time? That's 4166 and 2/3 times longer than YEC's think the earth has existed. Why some folks are saying we did all this evolutionizing and more just since Noah.
And with the current experimentation with lab rats, its quite obvious that they have not been able to artificially create rats that are significantly more intellegent than their counterparts.
Well if 25 million years is such a short time to achieve these results why would you expect to see similar results in less time? By the way, the timing is closer to 80 million years if you're going to talk about relating rats and humans. Would you mind referencing the findings of the experiments where they tried to genetically engineer hyper-intelligent rats? I'm sorry, episodes of Pinky and The Brain are not acceptable since Warner Brothers declined to present them for peer review. If you're going to claim we have failed you'd better be able to prove someone has tried.
The whole process seems incredible even to the evolutionist - so there must be something groundbreaking about this story...
You are mistaking incredible for unexplainable. Scientists see the evidence and they posit reasonable explanations...they are excited and delighted by their findings which give them greater insight. Nowhere do the authors even hint that they have shaken the foundations of the ToE or brought credible evidence to light for goddunitism. You're clutching at imaginary straws.

When science and the Bible differ, science has obviously misinterpreted its data.
- Henry Morris, Head of Institute for Creation Research

This message is a reply to:
 Message 4 by skepticfaith, posted 09-27-2006 5:41 PM skepticfaith has not replied

  
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