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Author Topic:   Some Evidence Against Evolution
Dr Jack
Member
Posts: 3514
From: Immigrant in the land of Deutsch
Joined: 07-14-2003
Member Rating: 8.3


Message 9 of 309 (69372)
11-26-2003 9:37 AM
Reply to: Message 1 by Cold Foreign Object
11-25-2003 9:34 PM


Richard Milton, as in author of 'Shattering the Myths of Darwinism'?

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 Message 1 by Cold Foreign Object, posted 11-25-2003 9:34 PM Cold Foreign Object has replied

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Dr Jack
Member
Posts: 3514
From: Immigrant in the land of Deutsch
Joined: 07-14-2003
Member Rating: 8.3


Message 41 of 309 (69568)
11-27-2003 7:53 AM
Reply to: Message 39 by Peter
11-27-2003 7:16 AM


Evolutionary theory does not say that humans evolved from
apes.
I hear this stated quite often. It's not true. Humans did evolve from apes, in fact, Humans are apes. What we didn't do is evolve from any extant ape.

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 Message 39 by Peter, posted 11-27-2003 7:16 AM Peter has replied

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Dr Jack
Member
Posts: 3514
From: Immigrant in the land of Deutsch
Joined: 07-14-2003
Member Rating: 8.3


Message 57 of 309 (70227)
12-01-2003 7:05 AM
Reply to: Message 48 by JIM
11-30-2003 11:55 AM


Evolution can be aptly defined as the change in allele frequency over time
I've seen this stated many times. It's not true. This definition completely misses almost all of the significant parts of the theory, in particular it fails to explain how Natural Selection accounts for the fossil record, and how it explains the development of highly functional characteristics and organisms.

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Dr Jack
Member
Posts: 3514
From: Immigrant in the land of Deutsch
Joined: 07-14-2003
Member Rating: 8.3


Message 59 of 309 (70237)
12-01-2003 8:38 AM
Reply to: Message 58 by roxrkool
12-01-2003 8:28 AM


To see that JIM's definition is false, imagine this scenario:
You have a population of rats: some white, some black. Suppose every hundred generations the population cycles from 95% black, 5% white to 5% black, 95% white and then back again. This is a change in allele frequency over time; it is not evolution (unless the change can be tracked to factors changing the relative fitness of black and white rats).
Descent With Modification, and Natural Selection are the keystones of evolutionary theory; neither are contained in JIM's definition. JIM's definition has no explanatory power; it is prerequisite and prediction for evolution, not the definition

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 Message 60 by mark24, posted 12-01-2003 10:05 AM Dr Jack has replied

Dr Jack
Member
Posts: 3514
From: Immigrant in the land of Deutsch
Joined: 07-14-2003
Member Rating: 8.3


Message 61 of 309 (70250)
12-01-2003 10:11 AM
Reply to: Message 60 by mark24
12-01-2003 10:05 AM


Mark,
It is evolution, not necessarily adaptive evolution, but it is evolution. Neutral theory & genetic drift are non-adaptive, are in no way related to fitness, yet are still evolutionary mechanisms.
Only in the loosest possible sense of the word evolution (i.e. change over time). Certainly not in the sense of The Theory Of Evolution. What makes the theory useful, powerful and compelling is Natural Selection, any definition of evolution that misses that out is missing the point.
Yes, genetic drift and neutral genetic change occur and any general theory of evolution must take account of the; but they are not in themselves evolution. Thus JIM's statement "evolution can be aptly defined as the change in allele frequency over time" is false.

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 Message 62 by mark24, posted 12-01-2003 10:42 AM Dr Jack has replied

Dr Jack
Member
Posts: 3514
From: Immigrant in the land of Deutsch
Joined: 07-14-2003
Member Rating: 8.3


Message 63 of 309 (70258)
12-01-2003 11:10 AM
Reply to: Message 62 by mark24
12-01-2003 10:42 AM


Mark,
I think I've overstated my point. You are correct: change in allele frequency over time is part of evolution. However, I think any definition of evolution (in the sense of the theory of evolution) which fails to mention Natural Selection has missed the point.
While you are correct in stating that adaption and Natural Selection are not the only parts of Evolution, they are the only parts which are capable of producing the finely tuned, adaptive and complex organisms we see around us.
If evolution is based on heredity, & the basic unit of that process is the gene, then allele frequency over time is a perfectly valid definition for evolution. Ultimately even macroevolution is explainable with this definition (lots of micro).
Not so. Large scale evolutionary change, particularly adaptive change, requires a coherent mechanism for change. ToE provides this with Natural Selection. Mere 'change' is no explanation.
Regards,
Mr. Jack

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Dr Jack
Member
Posts: 3514
From: Immigrant in the land of Deutsch
Joined: 07-14-2003
Member Rating: 8.3


Message 205 of 309 (72479)
12-12-2003 6:35 AM
Reply to: Message 198 by Cold Foreign Object
12-11-2003 10:52 PM


Once I said the Bible claims to be God's word, then an avalanche of ignorance came demanding that I prove that. Every atheist debater knows that is the claim as we theists know their claim is that He doesn't exist at all.
We're not debating the existence of god nor atheism vs. theism. We're debating the validity of Evolution. Get it straight.
I don't give a stuff what you claim. You can claim anything you like. I, and most others here, will not take your claims seriously unless you can provide evidence for them.
[This message has been edited by Mr Jack, 12-12-2003]

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