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Author | Topic: Finches named for Darwin are evolving | |||||||||||||||||||||||
RAZD Member (Idle past 1431 days) Posts: 20714 From: the other end of the sidewalk Joined: |
I see that the Grants are still studying the finches and documenting variations in species over time (= evolution)
There is a Sept 2004 (see ABSTRACT) article on this as well: Bmp4 and Morphological Variation of Beaks in Darwin's Finches For previous work see this article: Genetics and the origin of bird species (abstract here) . Excellent. we are limited in our ability to understand by our ability to understand RebelAAmericanOZen[Deist
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RAZD Member (Idle past 1431 days) Posts: 20714 From: the other end of the sidewalk Joined: |
You realize that this is wonderful evidence for creation, ... Of course it is, because you can define "creation" any way you want to and make it fit, and re-define it to suit whenever necessary, as in when new evidence contradicts previous asserted positions to the point where they cannot be ignored. Also note the Deist position that the universe was created with everything in place and designed for life to evolve from primordial components does not contradict or clash with the concept of life evolving over time, so this is "wonderful evidence" for Deism.
... not evolution! Now here you make a logical leap of faith and commit a logical fallacy at the same time. You are essentially asserting that because you can claim the evidence is for "creation" that it then must be against evolution. This is not established. As noted above creation can include evolution as the mechanism by which all life has evolved. To establish that this is "not evolution" you have to demonstrate that it {CAN'T} be evolution. Not only has that not been done, but the evidence in the paper is that it not only {CAN} be evolution but {IS} evolution. Evolution is change in species over time -- precisely what is demonstrated by the finches in question, as noted in the (Science) paper (especially) and referenced in the news article.
The term "Evolution" or "Micro-evolution" is commonly used in some evolutionist circles to simply refer to "Adaptation" or "Natural Selection" which has nothing at all to do with molecules to man Evolution. You forgot mutation in your common creationist strawman argument here. Note that the article specifically states:
This was certainly a documented case of microevolution, added Fleischer, who was not part of Grant's research. (bold mine for empHASis) This means the article is not discussing abiogenesis (the proper term for your creationist " molecules to man" misrepresentation), or even evolution of the finches from a common ancestor with other birds (and has nothing to do with either molecules or man). Further, what you refer to as "Adaptation" is the selection of mutations by Natural Selection. The real mechanisms are Mutation and Selection. One causes variations in the base population (in this case large and small beaks in the finches) and the other selects variations that give a species an advantage (here small beaks in the smaller species to take advantage of seeds the other population is not eating) and it de-selects variations that hinder or harm the species (here the larger beaks):
The result was high mortality among G. fortis with larger beaks, leaving a breeding population of small-beaked G. fortis that could eat the seeds from smaller plants and didn't have to compete with the larger G. magnirostris for large seeds. Now to claim that this is NOT evolution you have to show that this is NOT what happened, but that something else caused this {appearance of evolution}.
You cannot take the fact that finches have adapted to their environment by developing longer or shorter beaks and then extrapolate that to say they will turn in alligators if we wait long enough! After millions of generations, birds are still birds, ... And that is not what the theory of evolution claim, so it seems you do not understand what evolution really is. You stated:
... I say that since I don't know to what extent terms have been defined. We use the common definitions that apply to science and biology in general and evolution in particular. For instance - dictionary.com defines evolution as:
ev·o·lu·tion 3. Biology. a. Change in the genetic composition of a population during successive generations, as a result of natural selection acting on the genetic variation among individuals, and resulting in the development of new species. b. The historical development of a related group of organisms; phylogeny. Please point out where this in any way necessitates birds becoming alligators, or that descendant species will not be related to their ancestor species. Now if you want to discuss how "macro"evolution cannot happen, that should go to a different thread rather than disrupt this one that is specifically about the evolution of variation in the finch population on the Galapagos islands. I suggest "Macro" vs "Micro" genetic "kind" mechanism? To sum: you have not demonstrated {HOW} this {CAN} be evidence for creation (other than by redefining "creation" to include it) nor have you demonstrated {HOW} this {CANNOT} be evidence for evolution. All you have made is an assertion of belief untainted by facts. Or as Faith notes:
Message 5 Right in tune with the rest of us creationists here. In fact we can attribute the foundations of the majority of modern science to creationists. You can, but you are asserting another false statement that is disproved by ALL the evidence. You are conflating modern creationists with victorian christians, a logical fallacy, ignoring the non-christian thinkers, and ignoring the "foundations" that existed before christianity was even "created" (and long before it "evolved" into american fundamentalist creationism). Further, the sciences have moved on, unfettered by erroneous past thinking, including that of creationist mis-preconceptions (such as flat earth and geocentricism) in their pursuit of knowledge of {HOW} things work based on the evidence that is available. Because you can cite {SOME} evidence for a position does not make it true or valid, most especially when you ignore {OTHER} evidence that disproves the position. The denial of {CONTRADICTORY EVIDENCE} means that the position is false, regardless of any claims otherwise, until such time as you can show how the evidence is wrong or explain it in terms of the position claimed. Enjoy. ps type [qs]quote boxes are easy[/qs] and it becomes:
quote boxes are easy
You can also pick "Peek Mode" on the message you are replying to in order to see how others do special formating. And Welcome to the fray we are limited in our ability to understand by our ability to understand RebelAAmericanOZen[Deist
... to learn ... to think ... to live ... to laugh ... to share.
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RAZD Member (Idle past 1431 days) Posts: 20714 From: the other end of the sidewalk Joined: |
Let's hold this thought for some other thread. This is not the place to debate beyond the particular news item. hello ray.
Define deism as compared to theism and its source ? Just apply the standard {dictionary.com\wikipedia.org\etc} definition as that is what was meant in the argument. You can also use {Theism} of course -- the point is that whatever belief is involved can be adapted to find it "wonderful" but that this does not in and of itself rule out evolution.
We know finch beaks oscillate depending upon weather and conditions = better explained by the ID model ? You mean that the IDed organism needs to be fine tuned by (a) having mutations available to provide variation, and (b) subsequent selection to meet the needs of a changing environment (= evolution)? How does this make ID a "better" explanation? Explain the mechanism by which ID worked, and how it was implemented, and how this is differentiated from the mechanism of evolution by the evidence at hand.
Thus saith RAZD....you are guilty of the same: natural-selection-did-it. LOL. Actually the evidence shows it whether I say it or not. This is not a matter of redefining evolution to suit -- it is just the definition applied to the facts: evolution is change in species over time; change in species over time was observed in specific fact and location and duration of time; result = evidence = evolution. Enjoy. Edited by AdminJar, : No reason given. we are limited in our ability to understand by our ability to understand RebelAAmericanOZen[Deist
... to learn ... to think ... to live ... to laugh ... to share.
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RAZD Member (Idle past 1431 days) Posts: 20714 From: the other end of the sidewalk Joined: |
That is, I prepared the response before I saw your "Off Topic" note. That note was from AdminJar, not me. Admins try to keep these things on topic, and this is a news thread rather than a debate thread. Go to Galapagos finches, Message 80 Enjoy. we are limited in our ability to understand by our ability to understand RebelAAmericanOZen[Deist
... to learn ... to think ... to live ... to laugh ... to share.
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RAZD Member (Idle past 1431 days) Posts: 20714 From: the other end of the sidewalk Joined: |
Hi Trev777,
This is a thread about the evolution of the finches on the Galapagos Islands. From Message 1, the opening post:
quote: Notice that this talks about natural selection, not speciation. From your Message 72:
Darwin collected what he regarded as 9 finch species during his voyage on Beagle 1831-1836). These finches were classified as sparate species based on their beak shape, size, colour, feeding etc. darwin's argument sounded so good, no-one bothered to test it by seeing if they were really separate and could not interbreed and produce fertile offspring. Now it has been discovered that Darwins finches can interbreed and produce fertile offspring if given the opportunity, so they are really one species, and provide no evidence for the evolution of new species, and never have. This historic first and foundational evidence for Darwin's theory turns out to be false. All creatures adapt but they don't evolve into another creature. Adaption is the built in ability of living creatures to cope with changes in their environment. The same goes for humans, the different skin colours were all in-built so that the sons of Noah and their generations adapted to the various climates as they spread across the globe. You have a couple of misconceptions here. (1) they are still classed as separate species because they do not normally interbreed. Being able to interbreed does not invalidate the process of speciation if different populations don't interbreed. Even the fact of occasional hybrids does not invalidate the designation as separate species if the numbers of hybrids are extremely low compared to the general population. Because of the physical boundary imposed by the distance between islands, this is the case. In situations like this the gene flow between the two populations is still hindered by the physical barrier, rather than a genetic one. A species is defined as a population or a group of populations that share genetic material from generation to generation. There are many definitions of species, and the most common one is the biological species definition:
From U.Mich Dept of Biologyquote: Note that this does not say that interbreeding is impossible, just that it is not normally observed. (2) this is certainly an example of natural selection, part of the process of evolution that results in speciation, resulting in distinct populations with distinctly different features. Evolution is the change in hereditary traits in populations from generation to generation, and this is certainly the case for these finches. Whether this is an example of speciation as well as evolution is relatively unimportant. Even if this were not speciation, it doesn't invalidate the fact that speciation has been observed and has occurred. If you want to talk about speciation, there are other examples that demonstrate this process, however it is important that we are talking about the same thing. See Definition of Species for a discussion of the definition of species. The reason I say this is because this statement of yours shows that you do not understand what evolutionary biologists call speciation:
All creatures adapt but they don't evolve into another creature. This is a creationist straw man, rather than an element of evolutionary biology. See MACROevolution vs MICROevolution - what is it? This is also NOT speciation. The difference required for one species to evolve into a different entire type of species is much more than speciation, and it involves the accumulated changes of many speciation events. If you want to discuss this further you can try your hand at: Dogs will be Dogs will be ???. Hope that helps. Enjoy. by our ability to understand Rebel American Zen Deist ... to learn ... to think ... to live ... to laugh ... to share. • • • Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click) • • •
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