|
Register | Sign In |
|
QuickSearch
Thread ▼ Details |
|
|
Author | Topic: Transitional fossils not proof of evolution? | |||||||||||||||||||||||||||||||||||||
Lithodid-Man Member (Idle past 2952 days) Posts: 504 From: Juneau, Alaska, USA Joined: |
The following is a photo series or morphological intermediates between the decapod crustacean families Paguridae (hermit crabs) and Lithodidae (king crabs). Later are considered to be directly descended from the former and probably nest within the Paguridae (in which case there will be some reorganization of the pagurid clades!). In the Guld of Alaska we have about 20 species each in both families and it is believed that the king crabs originated here. We are also lucky enough to have living representatives of the morphological intermediates.
The first three (A-C) are true hermit crabs. The trend in this group has been a reduction in the size of the abdomen ("tail") and a hardening of the carapace. "C" represents a genus (Labidochirus) probably very close to the ancestor of king crabs. The trend in the primitive king crabs (D, E, and F) has been the fusion of the carapace into a solid structure and an increase in the number of plates on the abdomen, the flattening of the abdomen, and a loss of the ancestral hight handed coiling of the abdomen (most hermit crabs live in snail shells and the abdomen coils to fit the shell). The last two (G & H) are true king crabs. In these the abdomen is composed of fused plates (in varying degrees) and is held permanently undre the body. The right hand coiling in these can be seen in females only as a slight asymmetry. There are even more derived (advanced) king crabs that have further specialized into a (true ) crab-like mode of life. The trend in the abdomen and carapace is also seen in the walking legs, mouthparts, pleopods, etc. The relationship (ancestor to descendant) is supported by morphology, sperm microstructure, and genetics. Edited by Lithodid-Man, : Attempting to fix picture Edited by AdminJar, : No reason given. Doctor Bashir: "Of all the stories you told me, which were true and which weren't?" Elim Garak: "My dear Doctor, they're all true" Doctor Bashir: "Even the lies?" Elim Garak: "Especially the lies"
|
|||||||||||||||||||||||||||||||||||||
Percy Member Posts: 22480 From: New Hampshire Joined: Member Rating: 4.8 |
Is anyone else having problems seeing the image?
--Percy
|
|||||||||||||||||||||||||||||||||||||
nwr Member Posts: 6409 From: Geneva, Illinois Joined: Member Rating: 5.3 |
I get the message "phvrf.yahoo.com could not be found. Please check the name and try again." It looks as if yahoo is doing a broken redirect somewhere.
|
|||||||||||||||||||||||||||||||||||||
RAZD Member (Idle past 1426 days) Posts: 20714 From: the other end of the sidewalk Joined: |
It sure is a great example of the power of artificial selection though. Do they form hybrids? Can the hybrids breed? Some with others but not all? They could be classed as the same species because that is where they started and nobody checked back from the new breed to the old, just as we always assume dogs will be dogs eh? we are limited in our ability to understand by our ability to understand RebelAAmerican.Zen[Deist
... to learn ... to think ... to live ... to laugh ... to share.
|
|||||||||||||||||||||||||||||||||||||
Percy Member Posts: 22480 From: New Hampshire Joined: Member Rating: 4.8 |
I think pretty much everyone has taken a turn at explaining to you that you're misunderstanding punctuated equilibria. The key aspects once again are:
You've never addressed these points, and repeating things you've already said and reproducing quotes you've already provided won't help. In order to move the discussion forward you're going to have to address the points people are making to you.
I guess its about time to start a thread on the '29 evidences of macroevolution,' presented by TalkOrigins. I will certainly open one in order to go over those 'many' transitions spoken about in it. This is already a thread about transitionals, I don't think we need another one. Why not just address the information about transitionals already provided in this thread? --Percy
|
|||||||||||||||||||||||||||||||||||||
Chiroptera Inactive Member |
quote: You can pull up as many quotes as you want, but I have read what Gould actually wrote. I suggest that instead of "pulling up" quotes at random that you read his essays in their entirety. They are not hard to find; if you don't want to spend money buying the books (although I think that they are worth the expense), you can probably find them at your local library. I recommend the collections of his essays that he wrote for Natural History. When you read his actual essays in their entirety, you will recognize that Gould does not deny that there are many important examples of transitional fossil species. What is more, you will see that his explanations of Punctuated Equilibrium are in line with what we are trying to tell you. -
quote: There is lots of change on record. There are also lots of examples where a species will exhibit very little change over time. If you would read Gould's essays in their entirety, then you will see that he acknowledges both of these phenomena. -
quote: There is lots of corraborative evidence, in many different fields of biology. -
quote: No, it does not explain why we should not expect them, especially since there are examples where we do see them. Punctuated Equilibrium is meant to explain what we do see, namely why we sometimes see the gradual changes, and why sometimes we see what appears to be sudden "jumps". -
quote: Excellent. I don't know which piece of evidence that you want to start with, but just so you know, my favorite piece of evidence is the nested hierarchical classification of species. Not that you have to start with that particular one, just that this is the one that will spark my interest the most. - I will say this again: the fossil record is marvelous confirmation of the theory of common descent. We see remarkably detailed lineages for several examples of "macroevolution". We see fossil species A then B then C then D and so forth. A and B can easily be connected by the "microevolution" , as can B and C and also C and D. Yet A and D are very different, examples of the type of macroevolution that creationists deny. "We must respect the other fellow's religion, but only in the same sense and to the extent that we respect his theory that his wife is beautiful and his children smart." -- H. L. Mencken (quoted on Panda's Thumb)
|
|||||||||||||||||||||||||||||||||||||
mr_matrix Inactive Member |
bats wings are in no way similar to bird's wings.
Did I ever say that they are identical? The intention was to show similarity. There are differences between the wings of birds and bats but they are both designed for flight. However, back to the scenario, evolutionists would hypothesize that such differences were overcome by mutations since they already claim that all life forms diversified initially because of mutations.
the connection to "reptiles" and birds is far, far more obvious using only skeletons than the connection between birds and mammals.
Where is the logic in claiming that birds evolved from reptiles? Since you quickly recognized the large physiological differences between a wing of a bat and that of a bird, you said that evolutionists would not claim that birds evolved from bats because of these differences. However, evolutionists failed to see the termendous physiological differences between reptiles and birds and thats why they claim that they have evolved from each other. The vast differences between reptiles and birds will render any attempt of transition ineffective. Even random mutations are no way able to account for such evolution. But evolutionists are only willing to make a huge leap over this gap and just hope that evolution of birds from reptiles somehow occured without being able to explain how it happened. While daydreaming about transitional fossils for this scenario. Now lets say that a mutation gave a reptile something that looks like a wing (replacing hands)in a primitive form that could not fly. This would not be considered advantagous to a reptile used to crawl or use its hands for other tasks. Such a handicap would be immediatly eliminated by nature. This is just one out of many other obstacles in the way of such transition. Mutations are not super changes that could cross these obstacles and provide advantages to a reptile use to live and function on land.
it's not according to science that bat are birds, but according to the bible:
First of all, before you quote any thing to me from the bible know that I am not christian. Second, if bats were birds in the bible, apes are humans in evolution. If there is no logic in the first claim, there is no logic in the second either.
no species adopts traits from other species. what you're thinking of hybridization.
Hybridization is not common in nature. Mostly introduced by human intervention and not purely by natural effects. However, hybrids have no advantages that can aid in evolution. The hybrid zygote either dies before maturation or results in an infertile offspring.
horses are tetrapods. actually, all land animals are tetrapods. find me a single vertbrate with more than four limbs.
Ok! how is that related to the point? There are no land animals with more than 4 limbs in reality. It is only found in evolution were evolutionsts claim fish with no limbs gaining legs, reptiles losing limbs, limbs turning to wings, legs turning to tails, and other fantasies.
in english, we are limited to 26 letters. look at what we can say.
True! with only 26 letters you get thousands of english words. But you dont find english words with chinese or indian letters. Similarly, populations vary in their own letters but do not aquire new letters from other languages. Because if they do, the word would not make sense with forign letters. But evolution is like putting a letter from another language randomly in an english word giving it a new meaning! Which is not realistic.
i would challenge you to provide me with a hole in the record. but it's obvious that you wouldn't present me with anything evolution is actually claiming -- just bats into birds and horses with wings and other things that demonstrate you don't actually have the foggiest idea WHAT evolution is.
Im not willing to hear stories or evolution fantasies. However, do you know that the so called human evolution is not a tree of gradual change. It is rather a "foggy" bush with either humans or apes and nothing in between except speculations or false links. (more details will be provided later).
we see more diversity in younger rock than we do in older rock.
NOt true, the cambrian explosion is like a rapid diversification at the base of the evolutionary tree and not in the branches. Most of the groups of organisms we know today have been established at the cambrian. Any claim that the cambrian explosion did not possess vast diversity is untrue. More than 60 phyla have been established at the cambrian explosion. 60 and not 2 or 3. This very old era was very diverse which alone invalidates the claim of "the younger the layer, the more complex".
no, i never said there were only hard fossils in the cambrian. i'm sure somebody's found a few soft creatures. but there are *NO* hard creatures in precambrian. none. at all. only softies. the "sudden explosion" is a product of the development of hard parts -- letting animals fossilize better.
This is what I mean, your hypothesis that hard parts developed to allow for more fossils is unproven and speculative. It is just to cover the lack of explanation and evidence. Just claiming that hard parts developed doesnot make it true because it is just a claim and no more. There are no fossils to show how a complex creature in the cambrian evolved from unicellular life forms. The abrupt appearance and disappearance of certain species cannot be explained by evolution but in only one phrase: "the fossil record is incomplete!".
reptiles splay their legs, to remain close to the ground for warmth. there is no cold-blooded animal alive today that walks with straight legs,
How can a cold-blooded reptile become a warm-blooded bird and with a much higher metabolism? I would like to see an answer with no usual fantasies but with a real scientific explanation.
"laboratory conditions" means controlled, observed, documented, and experimented upon. it doesn't mean it doesn't happen outside the lab, where things are much more complicated.
There is still a human intervention involved. Otherwise nature doesnot act by itself to form new species. The only speciation evolutionists refer to is when calling a descendant of a fish (for instance)from the hundridth generation a new species even though it is still a fish.
genetics tells us that we share about 99% of our DNA with chimps. heck, we share about half of our DNA with the banana the chimpanzee is eating.
Here is something that clearly defies genetics: the myth of the 99% similarity between humans and chimps. This is not true. This exaggerated estimation was based on an experiment in the 1980s whereby only a group of protien were compared and not the entire genomes. These protiens where in humans and chimps where found to be 99% similar. However, those are some of the most basic and necessary proteins found in almost all organisms and not only in humans and chimps. As you mentioned, we share genetic similarity with the bannana but that does not mean we are descendants of the bannanas. Similarly, we share other similarities to worms, insects, and other plants. Therefore, relying on genetic similarity does not cleary show you evolutionary lines of descent.
sorry, no giant robots here.
NO giant robots such as transformers. But evolution has even more unrealistic living transformers. In reality, the fossil record is actually full of gaps otherwise evolutionists wouldnt be still digging all over the world in search of imaginary trasitional links. Also, we should have seen countless transitionals both living and fossolized. But every species is cleary identified and isolated from others. Here is an important fact. Evolutionists believe that they could fill the fossil record with transitionals by claiming that all species are considered transitional forms. However, this is a distortion of the actual meaning of transitional. A transitional link should be an intermeidiate species (in between) two other different species that shows mixed traits of both species. There are no such species in the fossil record. That is why evolutionist started placing a distinct species (ie. archaepteryx) between 2 other very distinct species of reptiles and birds, even though archaepteryx is not a transitional link with a mix of reptiles and birds because it is an identified and distict species by itslef. Note: dont bother reply because im leaving the thread and wont be available to read replies. Edited by mr_matrix, : No reason given. Edited by mr_matrix, : No reason given. Edited by mr_matrix, : No reason given. Edited by mr_matrix, : No reason given.
|
|||||||||||||||||||||||||||||||||||||
anglagard Member (Idle past 858 days) Posts: 2339 From: Socorro, New Mexico USA Joined: |
Removed due to later edit of linked post
Edited by anglagard, : No reason given.
|
|||||||||||||||||||||||||||||||||||||
RAZD Member (Idle past 1426 days) Posts: 20714 From: the other end of the sidewalk Joined: |
Did I ever say that they are identical? Nobody ever said you claimed they were identical. You said they were similar enough that people would mistake one for being related to the other.
However, back to the scenario, evolutionists would hypothesize that such differences ... And you still make this claim, even after it has been totally refuted. There are many less significant differences between species with similar features evolved separately in different areas and times that have not caused the kind of confusion you think is inevitable here. There is even a term for it: Convergent evolution In your ignorance of evolution you made a statement, and it was shown that you were wrong: you could be big about it and just admit that you were wrong.
Note: dont bother reply because im leaving the thread and wont be available to read replies. In other words the old "declare victory and retreat" response. Now the only question is whether you can keep your word and not equivocate ... again, eh? Enjoy. we are limited in our ability to understand by our ability to understand RebelAAmerican.Zen[Deist
... to learn ... to think ... to live ... to laugh ... to share.
|
|||||||||||||||||||||||||||||||||||||
Damouse Member (Idle past 4927 days) Posts: 215 From: Brookfield, Wisconsin Joined: |
Here is something that clearly defies genetics: the myth of the 99% similarity between humans and chimps. This is not true. This exaggerated estimation was based on an experiment in the 1980s whereby only a group of protien were compared and not the entire genomes. These protiens where in humans and chimps where found to be 99% similar. However, those are some of the most basic and necessary proteins found in almost all organisms and not only in humans and chimps. Actually, you're wrong.Very wrong. After the Human Genome project was completed, the Chimpanzee project was initiated along with a host of other animals' genomes. The results were published in 2005 in a Nature article. In comparison, the scientists list a 2.7% differance to the human genome. Wait, this was 2005?! it can't be! That must mean you were wrong!Oh...
|
|||||||||||||||||||||||||||||||||||||
pompuspom Inactive Member |
There are no transitional fossils. Over the last few years I've thought..strange how there are no extinct species of ape? They've all been dug up and classified as human ancestors. All of them are human ancestors. To me now, evolutionary theory is infantile.
How did bats evolve? Where are the transitional fossils? Is there a bat with, say, shorter wings in the fossil record? I used to be a believer, (in evolution) but not any more. If you follow some illustrations through on how such animals evolved, it defies common sence. I am now reading Darwin's Black Box, by Michael J. Behe. The biochemical challence to evolution. I have gone over to the creationist camp, based on evidence, not faith. Just a few questions.. (unrelated). Can coal be carbon dated? It is carbon isn't it? And how does the carbon date work on carbon that is supposed to be 200 million'ish years old? What would happen to the carbon isotope after that many years?
|
|||||||||||||||||||||||||||||||||||||
AdminNosy Administrator Posts: 4754 From: Vancouver, BC, Canada Joined: |
Welcome to EvC pompuspom.
There are some links in my signiture that might be helpful. Please note that in order to minimize the chaos here we like to stick to one topic (mais ou minos) in a thread. Your dating and biochemical questions are off topic. No one should respond to them. I'm also a bit disappointed in you. You seem to have decided to post without reading even this thread. You certainly haven't taken advantage of the large amount of material already posted here. I suggest that you be careful about making flat out statments when you haven't yet researched these topics very much at all. If you search on here for Behe I'm sure you will find many existing discussions of his work. You may add posts to those, or if you think it is preferable propose a topic of your own to discuss it. Comments on moderation procedures (or wish to respond to admin messages)? - Go to: General discussion of moderation procedures Thread Reopen Requests Considerations of topic promotions from the "Proposed New Topics" forum Introducing the new "Boot Camp" forum Other useful links: Forum Guidelines, Observations about Evolution and This could be interesting....
|
|||||||||||||||||||||||||||||||||||||
DrJones* Member Posts: 2285 From: Edmonton, Alberta, Canada Joined: Member Rating: 7.4 |
strange how there are no extinct species of ape? They've all been dug up and classified as human ancestors
False. For example: Sivapithecus indicus. There are more but you'll have to do your own homework. You'll find answers to your radiocarbon questions in the dates and dating forum. Just a monkey in a long line of kings. If "elitist" just means "not the dumbest motherfucker in the room", I'll be an elitist! *not an actual doctor
|
|||||||||||||||||||||||||||||||||||||
lfen Member (Idle past 4699 days) Posts: 2189 From: Oregon Joined: |
you'll have to do your own homework. aw, com'on Doc. homeWORK is no fun, it's work! And that sucks! That's the appeal of creationism. Read the first 2 chapters of Genesis, they're short, and you don't even have to read them, someone can summarize them really fast for you, as in "God did it", and Voila, you're on your way to play!!!! Yea! no more homework! Wot a deal! you're just an old crabby teacher that doesn't want kids to have any fun bad, bad, you lfen
|
|||||||||||||||||||||||||||||||||||||
Damouse Member (Idle past 4927 days) Posts: 215 From: Brookfield, Wisconsin Joined: |
There are no transitional fossils. Over the last few years I've thought..strange how there are no extinct species of ape? They've all been dug up and classified as human ancestors. All of them are human ancestors. To me now, evolutionary theory is infantile. How did bats evolve? Where are the transitional fossils? Is there a bat with, say, shorter wings in the fossil record? I used to be a believer, (in evolution) but not any more. If you follow some illustrations through on how such animals evolved, it defies common sence. I am now reading Darwin's Black Box, by Michael J. Behe. The biochemical challence to evolution. I have gone over to the creationist camp, based on evidence, not faith. Just a few questions.. (unrelated). Can coal be carbon dated? It is carbon isn't it? And how does the carbon date work on carbon that is supposed to be 200 million'ish years old? What would happen to the carbon isotope after that many years? The coal shows an age of about that old, why? The whole isotope would have gone down into the next isotope. I.e. if it were carbon-14, it would now be carbon-12, and so forth. to your convoluted theory of a lack of links, see the post above this one. Honestly, do your homework and look for them. They're there. -I believe in God, I just call it Nature -One man with an imaginary friend is insane. a Million men with an imaginary friend is a religion. -People must often be reminded that the bible did not arrive as a fax from heaven; it was written by men. -Religion is the opiate of the masses
|
|
|
Do Nothing Button
Copyright 2001-2023 by EvC Forum, All Rights Reserved
Version 4.2
Innovative software from Qwixotic © 2024