Evolution: Is it Real? Answers from Biologists

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The discussion centers on the evolution of humans and other species, with a clear divide between those who support evolutionary theory and those who hold creationist beliefs. The scientific consensus is that humans evolved from a common ancestor shared with apes, supported by extensive fossil records, genetic similarities, and observable evolutionary processes. Participants emphasize that evolution is a well-substantiated scientific theory, distinct from mere belief, and is backed by substantial evidence across various scientific fields. Critics of evolution often argue from a religious perspective, asserting that humans are unique creations, which leads to debates about the interpretation of scientific terms like "theory." The conversation also touches on the nature of scientific inquiry, the importance of evidence, and the distinction between evolution and abiogenesis. Ultimately, the dialogue highlights the ongoing tension between scientific understanding and personal beliefs regarding the origins of life.
  • #101
loseyourname said:
He talked about beavers evolving from ducks. Other than the fact that they are both mascots of major Oregon universities, these animals have no relationship. Heck, one's a mammal and one's a bird. I'd say he's pretty ignorant.

Don't even recognise sarcasm.
Sigh
Evolutionists claim you can trace ancestorship through attributes. I gave you an example showing how absurd the theory is.

The only thing you know for sure is you don't know. But most people can't live with that.
 
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  • #102
kirkmcloren said:
Evolutionists claim you can trace ancestorship through attributes. I gave you an example showing how absurd the theory is.

I take it you don't know the difference between a homology and an analogy. Have you never heard of molecular systematics? I figured you're joking, but you're also badly displaying a lack of basic knowledge, and no desire whatsoever to learn. You also jumped into the middle of a fairly decent discussion with an extremely stupid statement and got what you deserved.
 
  • #103
Nereid said:
First, deliberate conflation: evolution (the observable fact) is quite different from the origin of life on Earth (that's abiogenesis). AFAIK, this is a standard, cynical tactic used by 'creationists' (i.e. they are perfectly well aware that evolution has nothing to do with how life on Earth began, but nonetheless deliberately conflate the two, to confuse those who aren't aware of their tactics).

I think your position is evolution made everything from the 1st spark of life. I say you have no proof. In fact the mother ship is a less fantastic theory.

Nereid said:
Second, next time you get a bacterial infection that is not treatable with the traditional anti-biotics, do you a) sue the doctor (she should have prescribed you the precious anti-biotics for which resistance hasn't yet set in), b) sue the pharmaceutical company (how dare they market an anti-biotic, knowing full well that there are resistant strains), c) sue god (she should not have created, in the last ten years, a strain of that bacterium that previously didn't exist), d) creationists (they have mislead you), e) something else?

So the bacteria never possessed a recessive trait that the antibiotic bred for? You would rather believe a more fantastic solution? Occam's razor says otherwise.


Nereid said:
Third, if we're going to discuss a *theory* of evolution, no I can't prove anything ... because that's not science (it's mathematics). If you would like to believe something, without the benefit of testing the belief using the scientific method, OK, go ahead. However, I do have to ask you - how can you use a computer, the internet, etc without being deeply hypocritical? After all, it's exactly the same process and principles that lead to you being able to post your nonsense on PF as lead to theories of evolution :mad: I'll be charitable; perhaps you are merely ignorant, not cynically hypocritical.

You? Charitable? You are indulging in obfuscation and diversion. Course when you have no argument then sophistry is the only way left. You will not possesses truth until you desire it above all else. The mind works that way.

To claim evolution has been proven via the scientific method -- shame sir, shame. You have proven nothing.

As for me I would prefer, like most people, that the unknowable be known. But wanting something doesn't make it so. And intellectual integrity demands you stick with the facts -- even when they are troubling. To have blind faith in evolution when it is logically unknown is a testament to your religion. You have faith do you not? Smells like religion. Sounds like religion. Maybe ;)
 
  • #104
loseyourname said:
I take it you don't know the difference between a homology and an analogy. Have you never heard of molecular systematics? I figured you're joking, but you're also badly displaying a lack of basic knowledge, and no desire whatsoever to learn. You also jumped into the middle of a fairly decent discussion with an extremely stupid statement and got what you deserved.

A legend in your own mind and a bag of chips. Modest too.
So you have proof of evolution? Why didn't you post that?
That would be pretty basic to the discussion. Course that doesn't fit your style of diversion from the topic. A little argumentum ad hominum is usually a good tactic, right. Works for you, huh?
 
  • #105
kirkmcloren said:
So the bacteria never possessed a recessive trait that the antibiotic bred for? You would rather believe a more fantastic solution? Occam's razor says otherwise.

In bacteria there is no recessive genes. Bacteria only have one copy of a gene with some exceptions. Antibiotics are occurs naturally and some species of bacteria naturally evolved genes involved in the resistance. These genes can be exchanged from species to species, can be pick up from DNA being in the environment, exchanged by transposon or carried by viruses. The other way antibitotic resistance can arise is by spontaneous mutation of the targeted molecules. The use of antibiotic will selected the resistant strains. The latter can be done in the lab by growing bacteria in the presence of antibiotic and selecting the resitant colonies. It was also obseved in nature.

All the above is natural selection and evolution working. Occam's razor is not always the best explanation in biology.

kirkmcloren said:
To claim evolution has been proven via the scientific method -- shame sir, shame. You have proven nothing.

As for me I would prefer, like most people, that the unknowable be known. But wanting something doesn't make it so. And intellectual integrity demands you stick with the facts -- even when they are troubling. To have blind faith in evolution when it is logically unknown is a testament to your religion. You have faith do you not? Smells like religion. Sounds like religion. Maybe ;)


I worked in lab and i have seen evolution in the lab and I tested evolution. I will state this again, evolution is the change of genotype over time, speciation is the result of evolution and other factors, and abiogenesis is the biological explantion for the origin of life. Evolution, speciation and abiogensis are three distinct events and cannot be group and define as evolution. Evolution is a fact, speciation and abiogenesis are hypothesis and are debatle. However, speciation is closer to becoming a theory than abiogenesis will ever be.
 
  • #106
kirkmcloren said:
Occam's razor says otherwise.

Oh god.. Another person who got their science education from the movie "Contact."
 
  • #107
I think iansmith (who is the god of my religion, btw) just decimaed kirckmcloren :)
 
  • #108
kirkmcloren said:
I think your position is evolution made everything from the 1st spark of life. I say you have no proof. In fact the mother ship is a less fantastic theory.
I'm not aware that I said anything of the sort ... perhaps you could point a statement of mine that is consistent with your thought?
So the bacteria never possessed a recessive trait that the antibiotic bred for? You would rather believe a more fantastic solution? Occam's razor says otherwise.
I see that iansmith has addressed this.
You? Charitable? You are indulging in obfuscation and diversion. Course when you have no argument then sophistry is the only way left. You will not possesses truth until you desire it above all else. The mind works that way.

To claim evolution has been proven via the scientific method -- shame sir, shame. You have proven nothing.

As for me I would prefer, like most people, that the unknowable be known. But wanting something doesn't make it so. And intellectual integrity demands you stick with the facts -- even when they are troubling. To have blind faith in evolution when it is logically unknown is a testament to your religion. You have faith do you not? Smells like religion. Sounds like religion. Maybe ;)
Au contraire, my post goes right to the heart of the matter.

It would seem that loseyourname is right, you are ignorant, not deeply cynical, so let's take this step by step.

Science is all about the application of the scientific method. In a few words, observations and experiments produce data. Through an iterative process, theories are developed which 'explain' the data. What does 'explain' mean? First ... contrary to what you have said twice now ... it does NOT mean 'prove'; no scientific theory can ever be proven - not quantum mechanics, not General Relativity, nothing. Second, 'explain' means something like this: 'there are no observations or experimental results which are inconsistent with the theory, within its domain of applicabilty'. It will come as no surprise to you that there's considerably more to science than just my few sentences (e.g. the role of models, the treatment of 'error' (a term which differs considerably from its everyday meaning), quantitative vs qualitative, 'falsifiability'), but this is sufficient for me to show you why a rejection of modern, successful theories of evolution is tantamount to denying that your PC works.

So, 'evolution'. As used by those who study it, it's a shorthand for the millions of observations; or, in iansmith's words "evolution is the change of genotype over time". This is quite incontrovertable, just as 'gravity' is.

Then there are 'theories of evolution', which seek to explain the observed facts. Darwin's was the first, but it's long since been shown to be inadequate - several other mechanisms are required to explain the observations, beyond the 'natural selection' of Darwin's theory.

So, how do we measure the success of a theory? One very powerful way is to list observations and experimental results which are inconsistent with it within its domain of applicability. So, for example, General Relativity is hugely successful - it is consistent with *all* observations and experimental results. Further, the consistency has been tested quantitatively, in some cases to 1 part in 100,000.

Using this yardstick to measure the success of theories of evolution, how do they stack up? Answer: there are no observations or experimental results which are inconsistent with the theories.

Finally to clarify the abiogenesis and evolution confusion: no theory of evolution can 'explain' the origin of life on Earth. Is that a fatal blow to those theories? No. Why not? Because the origin of life on Earth is not within the stated domain of applicability of those theories. So, to claim (as you do) that theories of evolution fail because they cannot explain the origin of life is a bit like saying that theories of economics fail because they cannot explain how the Sun generates heat and light.

What's all this have to do with PCs, the internet, the car you may drive, etc? Simple; a claim that theories of evolution are failures - without evidence to substantiate those claims within the framework of science - is equivalent to a denial of science. Yet your very use of a PC and the internet is a powerful demonstration that science 'works'; there is no difference between the success of science in producing solid-state electronics (for your PC) and the success of theories of evolution.

Finally, that 'Sir' bit; Nereid. Or, if you prefer, http://www.unc.edu/depts/jomc/academics/dri/idog.html :wink:
 
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  • #109
aychamo said:
Oh god.. Another person who got their science education from the movie "Contact."

So typical of you effete snobs. Anyone who isn't a member of your church is to be denigrated.

Argumentation and debate used to be based on logic not political sophistry. Your choice of technique tells a lot.
 
  • #110
I know it's outside the realm of evolution, but for however life actually started on earth, any theory I read, to me, is infinitely more plausible than the idea of a god creating it.
 
  • #111
Nereid said:
Finally, that 'Sir' bit; Nereid. Or, if you prefer, http://www.unc.edu/depts/jomc/academics/dri/idog.html :wink:

My apologies milady.
 
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  • #112
aychamo said:
I know it's outside the realm of evolution, but for however life actually started on earth, any theory I read, to me, is infinitely more plausible than the idea of a god creating it.

All the stories, GOD or godless are fantastic.
But then, life is fantastic, isn't it?
 
  • #113
kirkmcloren said:
So typical of you effete snobs. Anyone who isn't a member of your church is to be denigrated.

Argumentation and debate used to be based on logic not political sophistry. Your choice of technique tells a lot.

Why don't you address the problems in your argument that iansmith decimated instead of constantly inappropriately referring to science and evolution as a religion and church.

I don't dare chime in with scientific input when we have the knowledge of some of the others on the board. I just took a microbiology class last semester and several times I was confused in what we were learning and I posted threads here and had many people here instruct me on what was and wasn't correct. With their help I acheived greater understanding in micro than anyone else who took it that semester (I know because I got the highest grade in all the classes on each exam and the final.)
 
  • #114
kirkmcloren said:
So typical of you effete snobs. Anyone who isn't a member of your church is to be denigrated.

Argumentation and debate used to be based on logic not political sophistry. Your choice of technique tells a lot.

That's funny coming from a guy who has ignored every bit of evidence and explanation given in this thread and countless other threads like it on these boards and instead argues by calling evolution a "church" and making jokes about the platypus.
 
  • #115
loseyourname said:
That's funny coming from a guy who has ignored every bit of evidence and explanation given in this thread and countless other threads like it on these boards and instead argues by calling evolution a "church" and making jokes about the platypus.

You believe even though it is not proveable. That's religion -- and like most true believers you lack perspective. Self doubt is alien to you. Too bad.
 
  • #116
So are you going to continue your "political sophistry" or are you going to answer any of the evidence and/or arguments presented here and elsewhere?
 
  • #117
It is pointless to attempt a discussion with you. I answered the "contact" (1)and you responded (2) totally ignoring the troll comment in 1. You don't debate to resolve the truth, you instead argue to dominate an argument. You are inappropriately aggressive. Too bad. But like all true believers you have an emotional investment in your religion and you cannot conduct yourself otherwise. That's the bottom line. So troll away. Have the last word. I'm sure you always do.
==========================
1
Quote:
Originally Posted by aychamo
Oh god.. Another person who got their science education from the movie "Contact."


So typical of you effete snobs. Anyone who isn't a member of your church is to be denigrated.

Argumentation and debate used to be based on logic not political sophistry. Your choice of technique tells a lot
==========================
2
Quote:
Originally Posted by kirkmcloren
So typical of you effete snobs. Anyone who isn't a member of your church is to be denigrated.

Argumentation and debate used to be based on logic not political sophistry. Your choice of technique tells a lot.


That's funny coming from a guy who has ignored every bit of evidence and explanation given in this thread and countless other threads like it on these boards and instead argues by calling evolution a "church" and making jokes about the platypus.
=========================================
 
  • #118
Guys, this guy is obviously just trolling. He has already demonstrated that he has no knowledge of basically anything related to biology or evolution.

It's pointless to argue with him, he hasn't presented a single argument in his past dozen posts.
 
  • #119
Keep the discussion to the topic please.

People who don't believe in evolution: do you believe in micro-evolution? Surely there is a lot of evidence in our genome that this is taking place. There are many duplicated genes that mutate and gain new characteristics. There are whole families of genes that look very much alike but do slightly different things.

There are virusses that are able to insert novel pieces of DNA, there are transposons that hop through the genome taking pieces of DNA and inserting them into genes.

This would all facilitate micro-evolution.
 
  • #120
kirkmcloren, did you read Nereid's post from yesterday? Would you like to address it?
 
  • #121
Strange how some get so *****y...
 
  • #122
kirkmcloren said:
I say you have no proof.

What do you make of the changes in the fossil record through time?

How about the genetic markers that corroborate the geographic and temporal evolutionary history displayed by the fossil record?

How about the directly observed instances of speciation?

How about the observed instances of genetic mutatations that resulted in non-detrimental effects?
 
  • #123
kirkmcloren said:
You have never seen a transitional specie

We have many fossil examples of transitional forms.

and natural selection involves reduction of diversity from the parent--not evolution.

That too is PART of evolution. Some mechanisms increase diversity (e.g., recombination, mutation, gene flow) whereas other mechanisms decrease diversity.

Can you prove life on Earth wasn't put here by the mother ship?

You ask to "prove the negative". Regardless, we can prove that life has the capacity to change and we can provide evidence that it has changed in the past. On the other hand, there is no scientific evidence to indicate that life was placed here by an alien spaceship.
 
  • #124
I heard part of Alistair Begg's message on the 'Truth for Life' program on Christian radio this morning. His theme was that male and female roles have gotten all mixed up in the last 150 years. He blames the teaching of evolution, which to him is a pack of lies. His one-sentence summary of evolution was [and I am quoting him exactly]: "DNA met DNA in a pile of sludge."

CAN SOMEBODY--I SAY--CAN SOMEBODY SHOUT OUT "STRAW MAN ARGUMENT" FOR ME?
 
  • #125
You think that's bad? A pentecostal told me that evolution says "two rocks collided, amoebas came out and that's where humans came from"
 
  • #126
I invented evolution!
 
  • #127
"DNA met DNA in a pile of sludge."
"two rocks collided, amoebas came out and that's where humans came from"

Excellent examples why a strong science program is important for public schools.
 
  • #128
Phobos said:
Excellent examples why a strong science program is important for public schools.

Agreed. It kills me when uneducated yokels spout off at how scientists are always wrong, lie, etc. Meanwhile, they can't explain a single phenomenom except by crediting their appropriate paranormal entity.
 

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