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The Five Crises in Evolutionary Theory
Probe Ministries ^ | Dr. Ray Bohlin

Posted on 03/13/2002 6:00:25 AM PST by Heartlander

The Five Crises in Evolutionary Theory

Dr. Ray Bohlin

The Case of the Missing Mechanism
The growing crisis in Darwinian theory is becoming more apparent all the time. The work of creationists and other non-Darwinians is growing and finding a more receptive ear than ever before. In this discussion I want to elaborate on what I believe are the five critical areas where Darwinism and evolutionary theory in general are failing. They are:
1. The unsubstantiation of a Darwinian mechanism of evolution
2. The total failure of origin of life studies to produce a workable model
3. The inability of evolutionary mechanism to explain the origin of complex adaptations
4. The bankruptcy of the blind watchmaker hypothesis
5. The biological evidence that the rule in nature is morphological stability over time and not constant change.

Much of the reason for evolution's privileged status has been due to confusion over just what people mean when they use the word evolution. Evolution is a slippery term. If evolution simply means "change over time," this is non-controversial. Peppered moths, Hawaiian drosophila fruit flies, and even Galapagos finches are clear examples of change over time. If you say that this form of evolution is a fact, well, so be it. But many scientists extrapolate beyond this meaning. Because "change over time" is a fact, the argument goes, it is also a fact that moths, fruit flies, and finches all evolved from a remote common ancestor. But this begs the question.
The real question, however, is where do moths, flies, and finches come from in the first place? Common examples of natural selection acting on present genetic variation do not tell us how we have come to have horses, wasps, and woodpeckers, and the enormous varieties of living animals. Evolutionists will tell you that this is where mutations enter the picture. But mutations do not improve the scenario either. In speaking of all the mutation work done with bacteria over several decades, the great French zoologist and evolutionist Pierre-Paul Grasse' said:
What is the use of their unceasing mutations if they do not change? In sum, the mutations of bacteria and viruses are merely hereditary fluctuations around a median position; a swing to the right, a swing to the left, but no final evolutionary effect.

When I speak of evolution or Darwinism, it is the origin of new biological forms, new adaptive structures, morphological and biochemical novelties that I am referring to. This is precisely what has not yet been explained. When people question the popular explanations of the origin of complex adaptations such as the vertebrate limb, or sexual reproduction, or the tongue of the woodpecker, or the reptilian hard-shelled egg, they are usually given a litany of reasons why these structures are beneficial to the organisms. More precisely, the selective advantage of these structures is offered as the reason they evolved. But this begs the question again. It is not sufficient for an evolutionist to explain the function of a particular structure. What is necessary is to explain the mechanistic origin of these structures!
Natural selection does explain how organisms adapt to minor changes in their environment. Natural selection allows organisms to do what God commanded them to do. That is to be fruitful and multiply. Natural selection does not, however, explain the crucial question of how complex adaptations arose in the first place.

The Origin of Life
We have been led to believe that it is not to difficult to conceive of a mechanism whereby organic molecules can be manufactured in a primitive earth and organize themselves into a living, replicating cell. In fact, the ease by which this can (allegedly) happen is the foundation for the popular belief that there are numerous planets in the universe which contain life. Nothing could be further from the truth.
Early experiments suggested that it was relatively simple to produce some of the building blocks of life such as amino acids, the components of proteins. However, the euphoria of the Miller- Urey experiment of 1953 has given way to a paradigm crisis of 1993 in origin of life research. The wishful, yet workable atmosphere of ammonia, hydrogen, methane, and water vapor has been replaced by the more realistic, but stingy atmosphere of nitrogen, carbon dioxide, carbon monoxide, hydrogen sulfide, and hydrogen cyanide. This is the stuff that volcanoes belch out. This atmosphere poses a much more difficult challenge. Molecules relevant for life would be much rarer. Even more damaging is the possibility of the presence of molecular oxygen in the atmosphere from the break-up of water vapor. Molecular oxygen would poison any reaction leading to biologically significant molecules.
Coacervates, microspheres, the "RNA world," and other scenarios all have serious flaws obvious to everyone in the field except those who continue work with that particular scenario. Some have privately called this predicament a paradigm crisis. There is no central competing model, just numerous ego-driven scenarios. Even the experiments in which researchers try to simulate the early earth have been severely criticized. These experiments generally hedge their bets by using purified reactants, isolated energy sources, exaggerated energy levels, procedures which unrealistically drive the reaction toward the desired product and protect the products from the destructive effects of the energy sources which produced them in the first place.
The real situation was summed up rather well by Klaus Dose:
More than 30 years of experimentation on the origin of life in the fields of chemical and molecular evolution have led to a better perception of the immensity of the problem of the origin of life on earth rather than to its solution. At present all discussions on principal theories and experiments in the field either end in stalemate or in a confession of ignorance." [From Interdisciplinary Science Review 13(1988):348-56.]

But all of these difficulties together, as staggering as they are, are not the real problem. The major difficulty in chemical evolution scenarios is how to account for the informational code of DNA without intelligence being a part of the equation. DNA carries the genetic code: the genetic blueprint for constructing and maintaining a biological organism. We often use the terms of language to describe DNA's activity: DNA is "transcribed" into RNA; RNA is "translated" into protein; geneticists speak of the "genetic code." All these words imply intelligence, and the DNA informational code requires intelligent preprogramming, yet a purely naturalistic beginning does not provide such input. Chemical experiments may be able to construct small sequences of nucleotides to form small molecules of DNA, but this doesn't make them mean anything. There is no source for the informational code in a strictly naturalistic origin of life.

The Inability to Account for Complex Adaptations
Perhaps the single greatest problem for evolutionary biologists is the unsolved problem of morphological and biochemical novelty. In other words, some aspects of evolutionary theory describe accurately how existing organisms are well adapted to their environments, but do a very poor job of explaining just how the necessary adaptive structures came about in the first place.
Darwinian explanations of complex structures such as the eye and the incredible tongue of the woodpecker fall far short of realistically attempting to explain how these structures arose by mutation and natural selection. The origin of the eye in particular, caused Darwin no small problem. His only suggestion was to look at the variety of eyes in nature, some more complex and versatile than others, and imagine a gradual sequence leading from simple eyes to more complex eyes. However, even the great Harvard evolutionist, Ernst Mayr, admits that the different eyes in nature are not really related to each other in some simple-to-complex sequence. Rather, he suggests that eyes probably had to evolve over forty different times in nature. Darwin's nightmare has never been solved. It has only been made 40 times more frightening for the evolutionist.
In his 1987 book, Theories of Life, Wallace Arthur said:
One can argue that there is no direct evidence for a Darwinian origin of a body plan--black Biston Betularia certainly do not constitute one! Thus in the end we have to admit that we do not really know how body plans originate.

In 1992, Keith Stewart Thomson wrote in the American Zoologist that:
While the origins of major morphological novelties remain unsolved, one can also view the stubborn persistence of macroevolutionary questioning...as a challenge to orthodoxy: resistance to the view that the synthetic theory tells us everything we need to know about evolutionary processes.

The ability to explain major morphological novelties is not the only failing of evolutionary theory. Some argue that molecular structures are even more difficult to explain. The molecular architecture of the cell has recently described by molecular biologist Michael Behe as being irreducibly complex systems which must have all the components present in order to be functional. The molecular workings of cilia, electron transport, protein synthesis, and cellular targeting readily come to mind. If the systems are irreducibly complex, how do they build slowly over long periods of time out of systems that are originally doing something else?
While publishing hundreds of articles pertaining to molecular homology and phylogeny of various proteins and nucleic acids over the last ten years, the Journal of Molecular Evolution did not publish one article attempting to explain the origin of a single biomolecular system. Those who make molecular evolution their life's work are too busy studying the relationship of the cytochrome c molecule in man to the cytochrome c molecule in bacteria, rather than the more fundamental question of where cytochrome c came from in the first place!
Clearly then, whether we are talking about major morphological novelties such as the wings of bats and birds, the swimming adaptations of fish and whales, the human eye or the molecular sub- microscopic workings of mitochondria, ribosomes, or cilia, evolutionary theory has failed to explain how these structures could arise by natural processes alone.

The Bankruptcy of the Blind Watchmaker Hypothesis
In his 1986 book, The Blind Watchmaker, Richard Dawkins states, "Biology is the study of complicated things that give the appearance of having been designed for a purpose." He explains that
Natural selection is the blind watchmaker, blind because it does not see ahead, does not plan consequences, has no purposes in view. Yet the living results of natural selection overwhelmingly impress us with the appearance of design as if by a master watchmaker, impress us with the illusion of design and planning.

Darwinism critic, Philip Johnson, has quipped that the watchmaker is not only blind but unconscious! Dawkins later suggests just how this process may have brought about the development of wings in mammals. He says:
How did wings get their start? Many animals leap from bough to bough, and sometimes fall to the ground. Especially in a small animal, the whole body surface catches the air and assists the leap, or breaks the fall, by acting as a crude aerofoil. Any tendency to increase the ratio of surface area to weight would help, for example flaps of skin growing out in the angles of joints...(It) doesn't matter how small and unwinglike the first wingflaps were. There must be some height, call it h, such that an animal would just break its neck if it fell from that height. In this critical zone, any improvement in the body surface's ability to catch the air and break the fall, however slight the improvement, can make the difference between life and death. Natural selection will then favor slight, prototype wingflaps. When these flaps have become the norm, the critical height h will become slightly greater. Now a slight further increase in the wingflaps will make the difference between life and death. And so on, until we have proper wings.

This can sound rather seductively convincing at first. However there are three faulty assumptions being used. The first doubtful assumption is that nature can provide a whole chain of favorable mutations of the precise kind needed to change forelimbs into wings in a continuous line of development. What is the larger miracle, an instantaneous change or a whole series of thousands of tiny changes in the proper sequence?
The other assumption is "all things being equal." These mutations must not have secondary harmful effects. How is the creature's grasping ability compromised while these wingflaps grow? These little shrew-like animals may slowly be caught between losing their adaptiveness in the trees before they can fully utilize their "developing" wings. Or there might be some seemingly unrelated and unforeseen effect that compromises survivability.
A third faulty assumption is the often used analogy to artificial selection. "If artificial selection can do so much in only a few years," so the refrain goes, "just think what natural selection can do in millions of years." But artificial selection works because it incorporates foresight and conscious purpose, the absence of which are the defining qualities of the blind watchmaker. In addition, artificial selection actually demonstrates the limits to change since an endpoint in the selection process is usually reached very quickly.
The blind watchmaker hypothesis, when analyzed carefully, falls into the category of fanciful stories that are entertaining--but which hold no resemblance to reality.

The Prevalence of Stasis over Mutability
Rather than observing organisms gradually evolving into other forms, the fossil record speaks of "sudden appearance" and "stasis." New types appear suddenly and change very little after their appearance. The rarity of gradual change examples in the fossil record were revealed as the trade secret of paleontology by Steven J. Gould of Harvard. Gould also refers to stasis as "data" in the paleontological sense. These are significant observations. Darwin predicted that there should be innumerable transitional forms between species. But the reality of paleontology (the study of fossils) is that new forms appear suddenly with no hint of the "gradual" change predicted by evolution. Not only that, but once these new forms have appeared, they remain relatively unchanged until the present day or until they become extinct.
Some animals and plants have remained unchanged for literally hundreds of millions of years. These "living fossils" can be more embarrassing for the evolutionist than they often care to admit. One creature in particular, the coelacanth, is very instructive. The first live coelacanth was found off the coast of Madagascar in 1938. Coelacanths were thought to be extinct for 100 million years. But most evolutionists saw this discovery as a great opportunity to glimpse the workings of a tetrapod ancestor. Coelacanths resemble the proposed ancestors of amphibians. It was hoped that some clues could be derived from the modern coelacanth of just how a fish became preadapted for life on land, because not only was there a complete skeleton, but a full set of internal organs to boot. The results of the study were very disappointing. The modern coelacanth showed no evidence of internal organs preadapted for use in a terrestrial environment. The coelacanth is a fish--nothing more, nothing less. Its bony fins are used as exceptionally well-designed paddles for changing direction in deep-sea environment, not the proto-limbs of future amphibians.
Nowhere is the problem of sudden appearance better demonstrated than in the Burgess Shale found in the Canadian Rockies. The Burgess Shale illustrates that in the Cambrian period (which evolutionists estimate as being over 500 million years ago) nearly all of the basic body plans (phyla) of animals existing on earth came into existence in a geological instant (defined as only 20-30 million years), and nothing that new has appeared since that time. The Cambrian explosion as it is called is nothing less than astounding. Sponges, jellyfish, worms, arthropods, mollusks, echinoderms, and many other stranger-than-fiction creatures are all found to suddenly appear in the Cambrian without a hint of what they descended from nor even how they could all be related to each other. This is the opposite expectation of Darwinism which would have predicted each new body plan emerging from pre-existing phyla over long periods of time. The Cambrian explosion is a direct contradiction of Darwinian evolution.
If Darwin were alive today, I believe he would be terribly disappointed. There is less evidence for his theory now than in his own day. The possibility of the human eye evolving may have caused him to shudder, but the organization of the simplest cell is infinitely more complex. Perhaps a nervous breakdown would be more appropriate!


TOPICS: Culture/Society
KEYWORDS: crevolist; evolution; homosexual
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To: spqrzilla9
Mi<" the article remains full of circular reasoning, logical fallacies and other rhetorical failings."

Can tell us what logical fallacies you speak of or is it that you disagree with the article but can not give any refutation of it?

101 posted on 03/17/2002 7:17:07 PM PST by gore3000
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To: sakic
For all of the supposed problems of evolution they pale in comparison to all of the violations of physical law as stated by Creationists.

You've got that 180-degrees backwards. The sum total count of miracles in the bible, both testaments, is probably less than 100, while evolution posits an endless sequence of probabilistic miracles, flagrant violations of mathematical and probabilistic laws which are as real as any law of physics.

You could devise a new religion by taking the single stupidest doctrine from each existing religion and even that would make infinitely more sense than evolution does.

In fact, if some judge finally does decide to put religion on an equal footing with evolution in American schools, he will have to face the problem of finding the RIGHT religion for such a purpose, i.e. a religion which operates at an intellectual level similar to that of evolution, and the only two possible candidates would be Rastifari and Voodoo, and even those two religions are too good to compare with evolution. He'd probably have to go with the Abbott and Costello version of Voodoo which you might have noticed in Abbot and Costello in the Ozarks, in which Lou Costello picks up the broom to whack the old witch with, accidently touches the starter button on the broom and goes flying off through the window and lands in a tree.

102 posted on 03/17/2002 7:19:04 PM PST by medved
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To: gdani
But I have yet to meet the creationist that can "prove" that the world was created in 6/7 days, that the Earth is only about 6,000 years old, that everyone descended from some "Adam & Eve" in a Garden of Eden, etc, etc

That's why we should avoid mixing religion and science in discussion of scientific matters. If someone says "I believe in evolution" and is told he is going to burn in Hell for having that belief, nothing is gained. On the other hand if someone says "I have doubts about evolution" and is told he is an ignorant fool, then nothing is gained either.

It seems to me that many defenders of evolution treat their belief as an unshakable tenet of faith rather than a scientific theory to be considered detachedly.

103 posted on 03/17/2002 7:36:18 PM PST by Tribune7
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To: gore3000
Monkeys and apes and people all descended from a common critter that existed many millions of years ago.

Interesting to see evolutionists finally admit that man did not descend from monkeys - after telling that lie for 100 years.

Tell me this: how can a theory that has been purposely lying for 100 years be considered science? How can it be believed now? Why should it be believed?

Since evolutionists have not been claiming that Man was descended from "monkeys" for 100 years, one is baffled as to why you have been believing this about evolution.

It is in fact creationists who have been making this deliberate misrepresentation. You should re-evaluate who it is that has the real credibility problem.

104 posted on 03/17/2002 10:03:28 PM PST by spqrzilla9
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To: gore3000
This is a prime example of the kind of rhetorical hand-waving of the article:

All these words imply intelligence, and the DNA informational code requires intelligent preprogramming, yet a purely naturalistic beginning does not provide such input.

Basic circular reasoning. The "words" imply intelligence so there must be some? I'm baffled why this simplistic article impresses you so.

However, it remains that "creation science" isn't.

105 posted on 03/17/2002 10:10:55 PM PST by spqrzilla9
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To: gore3000
Here's another example:

However, even the great Harvard evolutionist, Ernst Mayr, admits that the different eyes in nature are not really related to each other in some simple-to-complex sequence. Rather, he suggests that eyes probably had to evolve over forty different times in nature. Darwin's nightmare has never been solved. It has only been made 40 times more frightening for the evolutionist.

This is actually more of a "fright" for creationists who now have some "intelligence" creating forty different eyes for no particular reason. That different eyes would evolve along different paths strengthens evolution's case rather than the reverse. Bizarre logic from the author again.

106 posted on 03/17/2002 10:15:01 PM PST by spqrzilla9
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To: Heartlander
I don't know about you, but when I'm looking for the latest biological news, I make sure to get it straight from Probe Ministries.
107 posted on 03/18/2002 12:08:50 AM PST by Godel
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To: gore3000
Interesting to see evolutionists finally admit that man did not descend from monkeys - after telling that lie for 100 years.

This proves that either you are not the same gore3000 posting to these threads on a regular basis, or that you suffer from some memory difficulties, and

You do not get your science from scientific sources, Because

Evolutionists have never claimed that men descended from apes. That is a canard some creationists claim evolutionists claim. Hell, most creationists do not even claim that evolutionists claim that (say that five times fast) because they know it is wrong and makes them sound ignorant. It is sort of refreshing to think you don't care how others perceive you.

108 posted on 03/18/2002 2:18:15 AM PST by Junior
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To: spqrzilla9
However, even the great Harvard evolutionist, Ernst Mayr, admits that the different eyes in nature are not really related to each other in some simple-to-complex sequence. Rather, he suggests that eyes probably had to evolve over forty different times in nature. Darwin's nightmare has never been solved. It has only been made 40 times more frightening for the evolutionist.

This is actually more of a "fright" for creationists who now have some "intelligence" creating forty different eyes for no particular reason. That different eyes would evolve along different paths strengthens evolution's case rather than the reverse. Bizarre logic from the author again.

Gore3000 is right and you're wrong. A designer or diffferent designers seeing a new function in one creature and wanting to provide it to another could easily take different paths to the same function, working with what was available in each separate creature. Likewise, humnan designers generally seek to provide a function and not some particular implementation to their users. Were that not the case, the worlds armies would have entered WW-II all using the same rifle calibre.

In contrast, for the eye to have evolved forty different times involves so great a violation of probabilistic laws as to be laughable.

109 posted on 03/18/2002 2:39:22 AM PST by medved
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To: Deutsch
You can throw sand into the air a million different ways and it will never become anything but grains of sand. Their would be no earth without divine intervention

I have another solution to the debate. Those who don't believe in creationism were indeed pieces of green slime at one time. Those who believe in Creationism were made by God. Who says it has to be mutually exclusive? In fact, there are some signs that we have undeveloped green slime serving in the Senate.

110 posted on 03/18/2002 3:24:00 AM PST by ODDITHER
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To: spqrzilla9
"Since evolutionists have not been claiming that Man was descended from "monkeys" for 100 years, one is baffled as to why you have been believing this about evolution. "

You are playing word games. Not for the last 100 years they have not. For the last few decades they have not been making that claim. However Darwin did and evolutionists kept making that claim for 100 years after Darwin. It was a lie. A lie totally absent of any scientific evidence (like almost everything in Darwin).

111 posted on 03/18/2002 4:39:04 AM PST by gore3000
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To: spqrzilla9
"Basic circular reasoning. The "words" imply intelligence so there must be some? I'm baffled why this simplistic article impresses you so."

Perhaps the one sentence you quoted looks circular, but in the context of the entire paragraph it is not. DNA codes because they have 20 possible values at each position are described by the letters of the alphabet. They are written like very long words. These words are very exact. A single change can result in a bad mutation. What is being said is that like writing a paragraph, it requires an intelligence in order to make it do what it is supposed to do. This is quite correct. The chances of the sequences of one gene arising at random are astronomical.

As to why I think it is a good article, because it explains quite concisely the problems with the theory of evolution. As you will notice in this thread, there are very few posts that even attempt to challenge the five propositions made at the beginning.

112 posted on 03/18/2002 4:51:17 AM PST by gore3000
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To: gore3000
Good sir...please show me in any book on evolution, where it states that man eveolved from monkeys. You keep calling this a lie put forward by evolutionists...I say it is the other way around. The only people that state that are anti-evolutionists.
Before you accuse someone of lying, don't you think it would be a good idea to see who is telling the lie first?
Oldcats
113 posted on 03/18/2002 4:53:41 AM PST by oldcats
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To: gore3000
You know, I never made it to Coney Island. The rest of the food I had in New York sucked though.
114 posted on 03/18/2002 5:02:12 AM PST by <1/1,000,000th%
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To: medved
Gore3000 is right and you're wrong. A designer or diffferent designers seeing a new function in one creature and wanting to provide it to another could easily take different paths to the same function, working with what was available in each separate creature. Likewise, humnan designers generally seek to provide a function and not some particular implementation to their users. Were that not the case, the worlds armies would have entered WW-II all using the same rifle calibre.

In contrast, for the eye to have evolved forty different times involves so great a violation of probabilistic laws as to be laughable.

No, what's laughable is the ludicrous "logic" of Creationists. For instance, if the same protein shows up in different animals, it must be evidence of an "intelligent design". But if different mechanisms of eyes show up in different animals, then its evidence of "intelligent design". Quite amusing.

115 posted on 03/18/2002 9:31:13 AM PST by spqrzilla9
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To: gore3000
A single change can result in a bad mutation. What is being said is that like writing a paragraph, it requires an intelligence in order to make it do what it is supposed to do. This is quite correct. The chances of the sequences of one gene arising at random are astronomical.

Your understanding of DNA is quite flawed. I suggest you do more reading on how DNA works, since even the creationists have finally abandoned claiming that DNA isn't the genetic component of life on earth.

116 posted on 03/18/2002 9:33:12 AM PST by spqrzilla9
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To: gore3000
You are playing word games. Not for the last 100 years they have not. For the last few decades they have not been making that claim. However Darwin did and evolutionists kept making that claim for 100 years after Darwin. It was a lie. A lie totally absent of any scientific evidence (like almost everything in Darwin).

I am not playing word games. Your claims are simply and completely false. Evolutionists for more than a century have stated that Man and apes have a common ancestor. If you cannot understand the difference - which is not a word game - then you are not following the substance of the debate at all.

117 posted on 03/18/2002 9:34:48 AM PST by spqrzilla9
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Comment #118 Removed by Moderator

To: oldcats
Good sir...please show me in any book on evolution, where it states that man eveolved from monkeys.

Glad you asked. First of all everyone knows about the so-called monkey trial. But let's be a lot more definite than that:

This case offers a good illustration how persistent may be the transmission of an absolutely useless faculty, probably derived from our remote semi-human progenitors; since many monkeys have, and frequently use the power, of largely moving their scalps up and down. (27. See my 'Expression of the Emotions in Man and Animals,' 1872, p. 144.)....

it is probable that the early ape-like progenitors of man were likewise social; ...

Thus the social instincts, which must have been acquired by man in a very rude state, and probably even by his early ape-like progenitors, still give the impulse to some of his best actions; ...

Therefore, if they were formerly of high importance to primeval man and to his ape-like progenitors ...

It deserves notice that, as soon as the progenitors of man became social (and this probably occurred at a very early period), the principle of imitation, and reason, and experience would have increased, and much modified the intellectual powers in a way, of which we see only traces in the lower animals. Apes are much given to imitation, as are the lowest savages;
All the above from: Darwin, "The Descent of Man".

So as I said, the evolutionists told for 100 years the lie that man descended from apes and now they do not even have the decency to admit they ever said that. In fact, they attack those who dare say that evolutionists said such a thing. Arrogance is the name of evolution, not science.

119 posted on 03/18/2002 8:44:47 PM PST by gore3000
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To: spqrzilla9
Your understanding of DNA is quite flawed. I suggest you do more reading on how DNA works, since even the creationists have finally abandoned claiming that DNA isn't the genetic component of life on earth.

A total misrepresentation of my statement. What I said was quite simple - that DNA is a code which is often depicted as letters. That each codon specifies one of 20 amino acids which are used in the proteins that make up life. That a series of these codons form a message, just like letters do, the message is very specific and encodes the protein to be made. The whole code is like a long paragraph and it is as unlikely for that long code to be written at random as for a million of Darwin's monkeys to write a single paragraph of Shakespeare.

120 posted on 03/18/2002 8:54:02 PM PST by gore3000
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