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Author | Topic: Best Evidence Macro-Evolution | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
RAZD Member (Idle past 1658 days) Posts: 20714 From: the other end of the sidewalk Joined:
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Hi again idscience,
macro evolution has to be able to produce novel morphology. No it doesn't. Nor is that a definition of macroevolution (see Panda in Message 69)
A wing has to be built from a limb, a leg from a fin. How are these novel morphology? Both the bird wing and the bat wing have the same bones in the same order as limbs. What's new about that? The bones in the leg are the same kinds of bones found in the fins of transitional fossils (like Tiktaalik and friends). What's novel about that? Even the fin evolved from the leg evolved from the fin uses the same bones in the same order as the limbs, which are in the same order as the original fins. What's novel about that. Now, if you would be so kind as to define macroevolution, then we can look and see if it can explain these changes.
Macro-evolution has to demonstrate how the increase of information occurred. ... No it doesn't. (a) Macroevolution does not need to use the term "information" at all, and(b) you now need to define "information" in a way that we can measure and determine whether or not it increases. Scientists avoid this by using terms that are defined and testable. ... Something more than "a long time did it". So what is your definition for macroevolution? You provide that and then we can discuss the necessary time parameters that would be involved.
photoreceptor cells complex. That simple first eye. Photoreceptor cells are blind to selection unless there is transmission, reception and translation of the signals. Otherwise the organism has no advantage. Macro-E has to demonstrate how a sensory system like this can be built randomly without knowledge of purpose. So define macroevolution and then we can look and see if it can explain this.
flagellum motor? How does macro-E build these systems one piece at a time if they are blind to selection until they are built and working? Again, once you define macroevolution we can look and see if it can explain this. Enjoy. Edited by RAZD, : added + clrty Edited by RAZD, : mre clrtyby 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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Philo Junior Member (Idle past 4656 days) Posts: 3 Joined: |
Is this an example of macro or micro-evolution? Or just the creator with some sense of humor.
Page not found – My Bloghttp://stickinsect.files.wordpress.com/...illed-platypus.gif Say a dog grows a beak is it just a dog with a micro-evolved beak or a new species? I think this is where the micro/macro definitions get a bit clunky. How about mice that start from the same family but grow apart in to two different species of mice that can't reproduce with each other. Is this micro or macro evolution? Edited by Philo, : No reason given.
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crashfrog Member (Idle past 1719 days) Posts: 19762 From: Silver Spring, MD Joined:
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Ok, I read the paper. I am not sure how it wipes out design completely. Because there's no possible design explanation for phylogenetic concordance between these species. The concordance is real - less than one chance in several million of being coincidental - and the only possible explanation is that they repeatedly speciated in concert over evolutionary time. If there was a design explanation, you would have been able to provide it, or someone already would have. Your retreat proves the hollowness of your position.
I am wondering if there are any papers that go beyond speciation? Probably, but speciation is macroevolution. Accepting this example means you've already conceded the debate.
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Admin Director Posts: 13107 From: EvC Forum Joined:
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No single individual is to blame, but collectively the participants have turned this thread into the worst example of snark I've seen in a while.
About the definition of macroevolution, for the purposes of this thread macroevolution is defined as evolution above the species level. A gray squirrel evolving into a red squirrel is macroevolution. A fish evolving into an amphibian is macroevolution. A bacteria evolving into man is macroevolution. Included in this definition is the fact that such transformations require thousands to millions to billions to even trillions of generations, depending upon the degree of change. Please reduce the snark. Please be part of the solution, not part of the problem. I will suspend for one day those who do not appear to be following this request. Edited by Admin, : Grammar.
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Panda Member (Idle past 3965 days) Posts: 2688 From: UK Joined: |
Philo writes:
It is an example of a monotreme.
Is this an example of macro or micro-evolution? Or just the creator with some sense of humor. Philo writes:
Neither. Say a dog grows a beak is it just a dog with a micro-evolved beak or a new species?It would be an example of a massive mutation that would probably result in the premature death of that dog. Philo writes:
It is both. How about mice that start from the same family but grow apart in to two different species of mice that can't reproduce with each other. Is this micro or macro evolution? Edited by Panda, : No reason given.If I were you And I wish that I were you All the things I'd do To make myself turn blue
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RAZD Member (Idle past 1658 days) Posts: 20714 From: the other end of the sidewalk Joined:
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Good morning Percy,
... for the purposes of this thread macroevolution is defined as evolution above the species level. A gray squirrel evolving into a red squirrel is macroevolution. ... And idscience could easily have looked this up on wikipedia:Macroevolution - Wikipedia quote: Bold added. Other definitions are provided by:
quote: Microevolution - small scale evolution - is the changes in gene frequency in a population from one generation to the next. Macroevolution - large scale evolution - is the descent of different species from a common ancestor over many generations.
quote: So again: Microevolution - Changes in the genetic composition of a population with the passage of each generation. Macroevolution - The gradual change of living things from one form into another over the course of time, the origin of species and lineages by descent of living forms from ancestral forms, and the generation of diversity. These help define what "above the level of species" means: the generation of new species and the formation of nested hierarchies of descent from common ancestor populations and the generation of diversity. In this regard this:
Shows the evidence for macroevolution occurring several times in the fossil record for Pelycodus. Do we see evolution above the species level? Yes, several times. We see Pelycodus ralstoni evolving into Pelycodus mckennai as one instance at the bottom and the evolution of Pelycodus jarrovii into Notharctus as another instance at the top. Do we see speciation? Yes, several times. We see the speciation event that divides the Pelycodus trigonodus parent species into the Copelemur feretutus and Pelycodus ebditus daughter species and the speciation event that divides the Pelycodus ebditus parent species into the Pelycodus jarrovii and Pelycodus frugivorus daughter species. Do we see the formation of a nested hierarchy? Yes, from the original Pelycodus ralstoni at the bottom we have several branches of a nested hierarchy that looks like this:
| ^ a / \ / \ / \ / ^ b / / \ / / \ e d c Do we see an increase in the diversity of life? Yes, where originally we had one breeding population Pelycodus we now have three: Pelycodus Copelemur and Notharctus. Do we see the formation of higher taxon levels than species? Yes, where originally we had one species Pelycodus we now have three genera: Pelycodus Copelemur and Notharctus that together form a family. And this is but the tip of the iceberg of evidence for macroevolution. Enjoy. Edited by RAZD, : clrty Edited by RAZD, : more detail added at end Edited by RAZD, : clrtyby 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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Theodoric Member Posts: 9489 From: Northwest, WI, USA Joined: Member Rating: 6.2
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Alas, this does not seem to be idboys definition. So I guess this thread should be closed.
idboy writes:
Message 48 The gophers are still gophers and the lice are still lice. Now if one of lice turned into a gopher I would be stumped. idboy writes:
Message 67 macro evolution has to be able to produce novel morphology. A wing has to be built from a limb,a leg from a fin. I will not ay anymore as it will result in a suspension. But this says it all.
idboy writes:
Message 49 I am sure you said a lot here, but I didn't read it. Edited by Theodoric, : subtitle changeFacts don't lie or have an agenda. Facts are just facts
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dwise1 Member Posts: 6076 Joined: Member Rating: 7.2 |
No, of course you haven't bothered to read. The gods forbid you should attempt to think! Typical creationist! Expending all that energy to avoid answering a very simple and pertinent question. You're nothing new at all.
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New Cat's Eye Inactive Member
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Okay, so the animals are evolving. There's no questioning that. But gross morphological change takes many, many, generations. You cannot point to something and say: "See this right here, this is macroevolution". We're going to have to infer it.
Now, when we look back at the fossil record, we see snapshots of various species. When we see a string of similiar species with minor changes between them showing gross morphological change over many multiple species, we can infer that macroevolution has happened. We have the mechanism that through mutation and selection, minor changes are made to the populations of the one species, and they build up until the species gradually looks like something completely different. Shrink a leg here, flatten an arm there, yadda yadda, you can mould one form into another with a whole bunch of very minor changes. Whales is a good example:
Or horses:
So we have one explanation here, that the later species evolved from the earlier ones. How else do you propse that those species got there? We have no other mechanism for the emergence? Just saying: "It could have been common design" doesn't help us at all. It could have been god poofing them into existence too, but we don't have any reason to suspect that it was. With evolution, we do have an explantion, and it works. So where else could Rodhocetus come from if not a previous common ancestor with Dalanistes? I mean, how else do you get an animal here besides from another animal giving birth to it? If the animal has to come from a previous animal, then obviously macroevolution is a necessity. Further, take the nested hierarchy. There isn't one single example of a species that falls outside of the nested hierarchy. Once you get backbones, everything derived from that has backbones and nothing else above it does. Today, there isn't a single animal outside of birds that has feathers. One explanation is that they stem from a common ancestor. Once feathers emerged, and we have examples of the stages of that emergence that look like this:
Once they emerged, all the bird species that come after that have some variation of the feather, and no species outside of birds have any feather at all. So how would that happen except for common ancestry? You can say: "it could have been common design" but again, that doesn't help us explain everything. HOW could it have been common design? How would that work at all? How would every bird have feathers and no non-birds have any feathers by design? Why not give the flying squirrel some feathers so he could fly better? The evolutionary explanation, that the flying squirrel is a mammal and not a bird so it could never have feathers, makes perfect sense but a designed explanation does not. For me, that's the best evidence of macroevolution. The nested hierarchy, a working explanation from evolution, and no single example of anything that falls outside of either. Too, we have no other idea how animals can get here besides from other animals. Simply: Macroevolution works as an explanation and nothing falsifies it. Too, there is no other helpful explantion to compete with it. As it sits, from the evidence, macroevolution is the only thing we can infer.
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Coyote Member (Idle past 2359 days) Posts: 6117 Joined:
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FIRST GENETIC EVIDENCE UNCOVERED OF HOW MAJOR CHANGES
IN BODY SHAPES OCCURRED DURING EARLY ANIMAL EVOLUTION University of California, San Diego: External Relations: News & Information: News Releases : Science Biologists at the University of California, San Diego have uncovered the first genetic evidence that explains how large-scale alterations to body plans were accomplished during the early evolution of animals. =================== 29+ Evidences for MacroevolutionThe Scientific Case for Common Descent Copyright 1999-2004 by Douglas Theobald, Ph.D. Talk Reason: arguments against creationism, intelligent design, and religious apologetics Evolution, the overarching concept that unifies the biological sciences, in fact embraces a plurality of theories and hypotheses. In evolutionary debates one is apt to hear evolution roughly parceled between the terms "microevolution" and "macroevolution". Microevolution, or change beneath the species level, may be thought of as relatively small scale change in the functional and genetic constituencies of populations of organisms. That this occurs and has been observed is generally undisputed by critics of evolution. What is vigorously challenged, however, is macroevolution. Macroevolution is evolution on the "grand scale" resulting in the origin of higher taxa. In evolutionary theory it thus entails common ancestry, descent with modification, the genealogical relatedness of all life, transformation of species, and large scale functional and structural changes of populations through time, all above the species level (Freeman and Herron 2004; Futuyma 1998; Ridley 1993). OK, I have presented evidence that macroevolution, as defined by scientists, occurs.Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.
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RAZD Member (Idle past 1658 days) Posts: 20714 From: the other end of the sidewalk Joined:
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Hi Theodoric,
Alas, this does not seem to be idboys definition. So I guess this thread should be closed.
idboy writes:
Message 48 The gophers are still gophers and the lice are still lice. Now if one of lice turned into a gopher I would be stumped. idboy writes:
Message 67 macro evolution has to be able to produce novel morphology. A wing has to be built from a limb,a leg from a fin. It no longer matters what definition idscience is or was using, he has forfeited his position to provide a definition in spite of numerous requests, and now must live with the definitions provided by us. If he doesn't like those definitions or disagrees with them, tough: he had his chance and did not take it. We now see numerous posts with evidence of macroevolution provided by a number of posters. These examples fit the definitions provided. His only recourse are to accept, falsify or deny the evidence. Enjoy. Edited by RAZD, : codingby 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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Admin Director Posts: 13107 From: EvC Forum Joined: |
RAZD writes: If he doesn't like those definitions or disagrees with them, tough: he had his chance and did not take it. I'm flexible.
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Taq Member Posts: 10297 Joined: Member Rating: 7.2
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Look at the premise of your question. "that is not due to common descent". Common descent is not a fact, it is an inference from a predetermined bias that it did indeed happen.
That is completely false. Common descent is a TESTABLE hypothesis. For example, we can predict that we should find the same retroviral insertions at the same positions in both the human and chimp genomes. This is a test for common ancestry. So what do we find? When they sequenced the human genome they found about 200,000 retroviral insertions (Human Genome paper). They then sequenced the chimp genome, found the ERV's, and compared them to the human genome (chimp genome paper). What did they find? Out of 200,000 retroviral insertions in the human genome less than 100 are not found in the chimp genome. For the chimp genome, only around 300 are not found in the human genome. There are literally hundreds of thousands of shared ERV's, each one ironclad evidence of common ancestry, and this is just the tip of the iceberg.
An unbiased question would be, do I know of any evidence that would tend to contradict a common ancestry. Absolutely. If we found that vast majority of shared retroviral insertions did not produce the PATTERN of homology that the theory of evolution predicts then that would contradict common ancestry. For example, if we found that only half of the orthologous retroviral insertions shared by humans and orangutans were shared by chimps then this would falsify common ancestry. On the flip side, common design makes absolutely no predictions on the expected PATTERN of shared features. This is why common ancestry is preferred over common design, because it is testable and it passes those tests.
Horizontal Gene Transfer seems like a work around for what was not predicted. It certainly isn't natural selection acting on random mutation and being passed on to descendants. Wrong on both accounts. HGT is an observed mechanism, not a work around. Also, you can detect HGT separtely from DNA that has been inherited vertically. Secondly, HGT events are random mutations. They are a change in the DNA sequence that is random with respect to fitness. DNA that is transferred horizontally passes through the same filter of natural selection that all changes in DNA go through. What we have NEVER observed is a supernatural deity changing DNA. Edited by Taq, : No reason given. Edited by Taq, : No reason given.
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Taq Member Posts: 10297 Joined: Member Rating: 7.2
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macro evolution has to be able to produce novel morphology. All that requires is novel DNA sequences which are produced by mutation.
Macro-evolution has to demonstrate how the increase of information occurred. Macro-evolution does not require an increase in information as it is defined by ID/creationists. It never has.
Macro-E has to demonstrate how a sensory system like this can be built randomly without knowledge of purpose. Evolution is not a random process, so why would it need to build things randomly?
flagellum motor? How does macro-E build these systems one piece at a time if they are blind to selection until they are built and working? Why would evolution need to build the flagellum in this fashion? Modification of already existing and functional systems is how evolution would have done it, not in the fashion you are describing.
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Drosophilla Member (Idle past 3894 days) Posts: 172 From: Doncaster, yorkshire, UK Joined:
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Ah - your opening post and the subsequent one ........
I am interested in hard evidence that moves macro-evolution from hypothesis to theory? Evidence of the same standard that is demanded from intelligent design science. I look forward to the responses. Ok, I read the paper. I am not sure how it wipes out design completely. The gophers are still gophers and the lice are still lice. Now if one of lice turned into a gopher I would be stumped. ..... tells volumes about your problem. Basically, the second statement shows clearly that you have a 'kindergarten' view of the ToE - as in Pokemon or Teenage Mutant Turtles (or the Hollywood version as in 'X-Men'). If you really think that the ToE postulates phylogenic changes (from one individual to the next) as great as an insect changing to a mammal (such as 'morphing' as in Pokemon) then no wonder you cannot present a coherent description of 'macro-evolution'.You seriously need to do some reading on the subject first. The guys here will help you - and already have by referencing dozens of starting articles. Look on this as a genuine offer of help re scientific knowledge. If you knew how you actually sound to those with scientific training on here you would cringe in embarrassment. You may not be aware but many members on here are either practising scientists or very clued-up laypeople. We have representatives from many science fields here including - genetics, ecology, archaeology, geology, astronomy, mathematics, biochemistry to name but a few of the subjects. Most of those you have engaged in this debate are very well versed in one or more of these subjects. Regarding this 'micro-evolution and 'macro-evolution' can you please answer the following (thanks to Rrhain in a previous thread - can't remember offhand which - for this question). If 1+1=2 why can't 1+1+1+1+1+1+1+1+1+1=10? When you understand this question and the answer it implies you will start to see part of where you are going wrong. I would also be interested in your definition of the Theory of Evolution (contrary to popular opinion it can be stated in a couple of sentences and incorporating just two tenets — can you take a stab at this?) as it would help us know how you ‘view’ the theory and therefore whether you understand the theory as the actual scientists who use it on a day to day basis do (I’m 99.9% sure you don’t but it’s best coming from you). BTW: Failing to read posts and then proudly and glibly announcing to those taking time to answer YOUR post is not only profoundly rude but is no way to enlightenment! --------------------------------------------------------------------------------
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