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Evolution

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Re: Evolution

Unread postby PenultimateManStanding » Sun 28 Aug 2005, 14:34:45

So punctuated equilibrium is an observation, it is presumably then an observation of the facts in the rocks. The theory of evolution needs to accomodate the facts. We should see more of the eohippus to modern horse type sequences than we actually do, if gradualism is the dominant factor for change.
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Re: Evolution

Unread postby MonteQuest » Sun 28 Aug 2005, 14:58:45

$this->bbcode_second_pass_quote('PenultimateManStanding', 'S')o punctuated equilibrium is an observation, it is presumably then an observation of the facts in the rocks. The theory of evolution needs to accomodate the facts. We should see more of the eohippus to modern horse type sequences than we actually do, if gradualism is the dominant factor for change.



Darwin did...

$this->bbcode_second_pass_quote('', '')The periods during which species have undergone modification, though long as measured in years, have probably been short in comparison with the periods during which they retain the same form."

$this->bbcode_second_pass_quote('', '')But I must here remark that I do not suppose that the process ever goes on so regularly as is represented in the diagram, though in itself made somewhat irregular, nor that it goes on continuously; it is far more probable that each form remains for long periods unaltered, and then again undergoes modification.”


Why do you keep ignoring this?
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Re: Evolution

Unread postby MonteQuest » Sun 28 Aug 2005, 15:01:52

$this->bbcode_second_pass_quote('PenultimateManStanding', 'W')e should see more of the eohippus to modern horse type sequences than we actually do, if gradualism is the dominant factor for change.


There are gaps in the fossil record we haven't found yet, and because fossilization occurs under certain conditions.
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Re: Evolution

Unread postby PenultimateManStanding » Sun 28 Aug 2005, 23:36:22

$this->bbcode_second_pass_quote('MonteQuest', '')$this->bbcode_second_pass_quote('PenultimateManStanding', 'W')e should see more of the eohippus to modern horse type sequences than we actually do, if gradualism is the dominant factor for change.


There are gaps in the fossil record we haven't found yet, and because fossilization occurs under certain conditions.
Can it be said for certain if the gaps are due to sporadic fossil formation and incomplete exploration finds or to a discontinuous history of speciation? I have read writers on the subject say it is the latter. A discontinuous speciation history would be in conflict with the theory of random mutation as the driving force behing speciation. Perhaps many different factors are all part of the mix. Lynn Margulis's thesis is that symbiotic relationships result in speciation. The eohippus example does show that gradual change is a factor, but as some have suggested, the record would seem to preclude random mutation as a dominant facter.
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Re: Evolution

Unread postby PenultimateManStanding » Mon 29 Aug 2005, 00:34:42

Let me explain the significance of the debate for whoever hasn't studied this issue. The mainstream favored theory has it that evolution is a result of natural selection of favored outcomes to random genetic mutations accumulating for Billions of Years. Critics of this mainstream orthodoxy point out conceptual flaws in the theory. One such criticism is that such a theory should predict a certain kind of fossil record which is not seen in reality. What is seen instead is a record of species which remain constant for long periods followed by new species and the disappearance, rather suddenly, of the old species. The difficulty arises because random mutation is now deficient as an explanation, but the mainstream conceptual map does not allow for intelligence anywhere but in the mind of man (this is due to the oppressive effects of theology felt by intelligent people in the 19th century). The answer is to start opening our eyes to the obvious display's of intelligence by nature outside of us humans. Human intelligence didn't arise out of nothing. There must have been a long history of all sorts of amazing intelligences that have evolved through billions of years. And the only thing that's constant for all these different species is that they have a DNA blueprint.
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Re: Evolution

Unread postby DefiledEngine » Mon 29 Aug 2005, 00:56:01

As far as I know, fossilization is a difficult process (the body parts of the animal may easily break down, and it must be left in such sediment as to make an impression) and it's quite amazing that we already have so many pretty clear cut gradual transitional fossil records (for example: dinosaurs to birds, reptiles to mammals, early hominids to homo sapiens).

$this->bbcode_second_pass_quote('', '
')The difficulty arises because random mutation is now deficient as an explanation, but the mainstream conceptual map does not allow for intelligence anywhere but in the mind of man (this is due to the oppressive effects of theology felt by intelligent people in the 19th century). The answer is to start opening our eyes to the obvious display's of intelligence by nature outside of us humans.


No, it has not been proven to be deficient. In fact many fossil records couldn't be well explained WITHOUT it, for example: the evolution of horses. It seems you detect some uncertanty/not-well-explained part of today's fossil records/evolution and fill in the gaps with "intelligence".
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Re: Evolution

Unread postby threadbear » Mon 29 Aug 2005, 01:10:34

I am really surprised at posters who don't give Penultimate Man Standing some credit for his point of view. He is clearly one of the most intelligent and definitely the most intellectually curious poster on the board. Those with a scientific bent should have more intellectual curiosity and less inclination to condemn novel points of view. Darwin is not the be all and end all. For God sakes, the dude's been dead for years. Have our theories of evolution fossilized? Shouldn't they be reexamined with open minds to see if they are fit to survive?

YOu owe me one PMS-- :lol:
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Re: Evolution

Unread postby PenultimateManStanding » Mon 29 Aug 2005, 01:10:43

$this->bbcode_second_pass_quote('DefiledEngine', 'w')e already have so many pretty clear cut gradual transitional fossil records (for example: dinosaurs to birds, reptiles to mammals, early hominids to homo sapiens).
No point in looking at the Big Picture here because it adds nothing to answering the questions about speciation.

$this->bbcode_second_pass_quote('', 'I')t seems you detect some uncertanty/not-well-explained part of today's fossil records/evolution and fill in the gaps with "intelligence".
More likely intelligence will fill our gaps.
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Re: Evolution

Unread postby DefiledEngine » Mon 29 Aug 2005, 01:26:56

$this->bbcode_second_pass_quote('PenultimateManStanding', '
')No point in looking at the Big Picture here because it adds nothing to answering the questions about speciation.


What? The fact that there are transitional fossils doesn't show that speciation can occur over longer periods of time, probably as a result of mutations?

The fact that fossilization doesn't occur easily at all (I believe some 99% of all organisms are broken-down/decomposed instead of making fossils) doesn't show that many critics miss something quite huge when critisizing evolution for the fossil record as we know it TODAY?
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Re: Evolution

Unread postby PenultimateManStanding » Mon 29 Aug 2005, 01:36:48

$this->bbcode_second_pass_quote('DefiledEngine', '
')What? The fact that there are transitional fossils doesn't show that speciation can occur over longer periods of time, probably as a result of mutations?
You missed the point. Of course the long term picture shows gradual changes as you pointed out. But if you get down to the species level, there is a mysterious dearth of supporting evidence for smooth transitions.
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Re: Evolution

Unread postby PenultimateManStanding » Mon 29 Aug 2005, 01:44:55

$this->bbcode_second_pass_quote('threadbear', '
')YOu owe me one PMS-- :lol:
You are right! I will have Mr. Threadbear assigned to fight the Phoenicians and take Mrs. Threadbear to be Mrs. PMS!
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Re: Evolution

Unread postby MonteQuest » Mon 29 Aug 2005, 01:49:33

$this->bbcode_second_pass_quote('threadbear', 'I') am really surprised at posters who don't give Penultimate Man Standing some credit for his point of view. He is clearly one of the most intelligent and definitely the most intellectually curious poster on the board. Those with a scientific bent should have more intellectual curiosity and less inclination to condemn novel points of view. Darwin is not the be all and end all. For God sakes, the dude's been dead for years. Have our theories of evolution fossilized? Shouldn't they be reexamined with open minds to see if they are fit to survive?

YOu owe me one PMS-- :lol:


But I keep quoting Darwin which shows that PMS point is already covered by Darwin.
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Re: Evolution

Unread postby PenultimateManStanding » Mon 29 Aug 2005, 01:59:16

$this->bbcode_second_pass_quote('MonteQuest', '[')
But I keep quoting Darwin which shows that PMS point is already covered by Darwin.
Darwin's point probably already does cover PMS's point! :lol: It's Neo Darwinism that makes the big point about random genetic mutation. I concluded that this theory couldn't be right 30 years ago. The theory doesn't fit the facts. We're going to have to keep looking if we want to know how evolution works. Change happens, how? keep looking.
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Re: Evolution

Unread postby DefiledEngine » Mon 29 Aug 2005, 02:08:53

$this->bbcode_second_pass_quote('', '
')You missed the point. Of course the long term picture shows gradual changes as you pointed out. But if you get down to the species level, there is a mysterious dearth of supporting evidence for smooth transitions.


I though the hard part was to explain gradual change on a macro-level? If you want species specific gradual evolution, I have mentioned homo-sapiens and horses and dinosaurs to birds (down below).

How detailed and specific do you think the fossil record should be? Concidering, again, that fossils of animals are a rare occurence even under the special conditions required? Should records show every dead progeny from an ancestor animal from a period of time of several millions of years?

Again, dinosaurs to birds transitional fossils show a slow gradual change from one species to another, for example Archaeopteryx and it's place in reptile to bird transformation.

http://www.talkorigins.org/faqs/comdesc/section3.html#fig3.1.1

http://www.talkorigins.org/faqs/archaeopteryx/info.html#features

In the end, I'm not saying that evolution concists solely of gradual random mutations. Symbiogenesis and quantum-level evolution are also possible explanations for PARTS of overall evolution. But gradual evolution certianly exist, and has been observed. Observed mutation rates often corrolate with fossil dating etc.
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Re: Evolution

Unread postby PenultimateManStanding » Mon 29 Aug 2005, 02:17:26

There needs to be a specific answer to the question how one species metamorphoses into another (with simultaneous major changes). The overall picture is not the issue here. The gradual transition from Dinosaurs to Birds is a grand idea and seems to be true, but it fails to answer my questions.
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Re: Evolution

Unread postby threadbear » Mon 29 Aug 2005, 02:45:53

Penultimate, I think Defiled is conceding major points to you here. Bravo Man. Both of you have evolved--go forth and multiply. But not too much--That's a whole other thread.
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Re: Evolution

Unread postby PenultimateManStanding » Mon 29 Aug 2005, 14:58:53

$this->bbcode_second_pass_quote('threadbear', 'G')o forth and multiply.
I pose as King David so threadbear poses as God! :lol: hmm, what if she is God. . . 8O [smilie=adora.gif]
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Re: Evolution

Unread postby EdF » Tue 30 Aug 2005, 17:29:59

Here are some good articles on the relationship of "intelligent design" to science.

- Ed
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Re: Evolution

Unread postby Z » Tue 30 Aug 2005, 18:27:04

$this->bbcode_second_pass_quote('EdF', '[')url=http://www.truthout.org/docs_2005/083005N.shtml]Here[/url] are some good articles on the relationship of "intelligent design" to science.


I'm no ID advocate, but I wish to point that concerning the origin of life, science has no clue. Time and time again we're told that life spontanously arised 4.5 billion years ago as it was a fact or a scientific theory. It is not. It is a mere hypothesis, backed up by no observation and very little facts that may or may not be relevant to the problem. For all we know, life as we know iit may have been engineered. This hypothesis is quite falsifiable, since once you have proved that life arose all by itself, you would have falsified it.
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Re: Evolution

Unread postby KiddieKorral » Tue 30 Aug 2005, 18:30:29

Abiogenesis and evolution are two completely different things.
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