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Mirror said:since when did proving evolution become a part this forum. i posted to show you are wrong. my coments are to be taken as constructive and not as insultive. if you choose to take it as insultive .do as you please.
Your post seems to have 2 themes:ur32212451 said:Yes Edward Blyth wrote several articles on natural selection ('Magazine of Natural History', 1836), a periodical to which Darwin subscribed, one year before Darwin 'thought' of the idea of 'natural selection'. Darwin biographer, and evolutionists, Loren Eisely, has stated that Darwin failed to give Blyth the credit due him for his ideas on natural selection.
And as I stated, NS is a two step process. You keep playing the shell game by trying to say evolution is either selection or mutation. Then saying that neither one is a cause of evolution. But Darwin never said either one was a cause of evolution, but that both selection and variation was the cause. That is, natural selection is both.Well stated. Also very consistent with Creation by an intelligent Creator (God). Again, as I previously stated, these variations of selection can only select existing alleles, therefore Natural Selection can not be a cause of Evolution.
Humans are in different environments. There are studies showing that Andean and Himalayan highlanders have genetic adaptations to living at high altitude, but not the same adaptations. So we have incipient speciation there physiologically -- adaptations in a semi-isolated population in a different environment. Which is disruptive selection.However, I am interested as to why you say humans are undergoing disruptive selection. Could you elaborate on this a little more. It sounds interesting.
WAIT! Strawman. Notice that "Neo-Darwinian phyletic gradualism that you allude to".ur32212451 said:I believe I'm responding to issues you have raised here on this thread. Yes, before I came here I was already quite familiar with the Fossil record. It does not support the Neo-Darwinian phyletic gradualism that you allude to in the alleged Therapsida ear movement.
Right. Exactly what should be there if evolution is continuing and exactly what should not be there if creationism is true. What you have are a series of species spaced in time such that you can trace morphological changes in the bones from reptiles to mammals. Dozens of species that are intermediate between the "kinds" reptiles and mammals. Exactly what we should see if evolution is descent with modification and a bush.The therapsida is a huge collection of diverse creature types, just as the reptiles and mammals are. As Thomas Kemp, a leading expert on Therapsids, pointed out, each type of Therapsida appear abruptly in the fossil record and disappear abruptly some time later, without any ancestral or descendant relationship to any other member of the Therapsida type.
That's because the museum didn't have the space to show you all the Therapsid samples. What they did was take the chronological series that demonstrated the ear bone movement. You were supposed to understand that at each stage there are a multitude of evolutionary cousins of all different shapes and sizes that have nearly identical ear bones.At the American Museum of Natural History, I've seen the Therapsida types that were used to show the alleged Evolution of ear bone movement. None of the specimens shared the same morphology, there were huge differnces between of them in size shape and structure.
They clearly did not share an ancestral-descendant relationship with each other. They were simply picked to show how evolution of the ear might look if it were to be found in the fossil record.
But the Therapsids are not a "mostly contemporaneous" group. Instead, what you are seeing is evolution over a period of 80 million years or more. That isn't contemporaneous. Go to that Karoo site I posted and look thru the pages of the mammal-like reptiles found in that 50 million year period. Even within those strata, there are genera that are present in only one of periods. And there is a change as you go from bottom to top in the Karoo.It's circular reasoning to arrange a few specimens from a large mostly contemporaneous group
One of the more famous misquotes in creationist literature. Funny how you never refer to the fossils, but only partial quotes.Dr.David Raup, curator of geology at the Field Museum of Natural History in Chicago,"Conflicts Between Darwin and Paleontology," Bulletin, Field Museum of Natural History, January 1979 has stated:
"Darwin's theory of natural selection has always been closely linked to evidence from fossils, and probably most people assume that the fossils
provide a very important part of the the general argument that is made in favor of Darwinian interpretations of the history of life.
Unfortunately this is not strictly true. ... The evidence we find in the geologic record is not nearly as compatible with Darwinian natural
selection as we would like it to be. Darwin was completely aware of this. He was embarrassed by the fossil record, because it didn't look
the way he predicted it would, and, as a result, he devoted a long section of the 'Origin of the Species' to an attempt to explain and
rationalize the differences. ... Darwin's general solution to the incompatibility of fossil evidence and his theory was to say the fossil
record was a very incomplete one. ... Well, we are now about 120 years after Darwin, and the knowledge of the fossil record has been greatly
expanded. We now have a quarter million fossil species, but the situation has not changed much. The record of evolution is surprisingly
jerky, and, ironically, we have fewer examples of evolutionary transition than we had in Darwin's time. By this I mean that some of
the classic cases of Darwinian change in the fossil record, such as the evolution of the horse, in North America, have had to be discarded or
modified as a result of more detailed information - that what appeared to be a nice simple progression when relatively few data were available
now appears to be much more complex and much less gradualistic. So Darwin's problem has not been alleviated. ..."
Again, this is the strawman of phyletic gradualism. Stanley is arguing against anagenesis being the major mode of speciation. However, Stanley is actually wrong. That's another problem of using quotes as your "facts". The accuracy of the quote must be tested against the true facts -- the fossils. These sequences document morphologic transition enough to be called a separate class -- and remember that reptiles and mammals are classes:Steven Stanley (1979) points out:
"In part, the role of paleontology in evolutionary research has been defined narrowly because of a false belief, tracing back to Darwin
and his early followers, that the fossil record is woefully incomplete. Actually, the record is of sufficiently high quality to
allow us to undertake certain kinds of meaningful analysis at the level of the species."
In his book ('Macro-evolution: Pattern and Process', 1979, p.39),
Stanley points out evidence #5 for Punctuated Equilibrium:
"The known fossil record fails to document a single example of phyletic evolution accomplishing a major morphologic transition and hence offers no evidence that the gradualistic model can be valid."
Not all of it. And you have a theological problem with viewing creation this way, with God creating each and every species. Remember, it is at the species level that new types appear abruptly, not the 'higher' taxa.The fossil record is a record that looks like Creation: It is a record of the abrupt appearance of Creature types followed by stasis.
How do you endow "variation" among creatures that can't interbreed? How do you get variation to make all these new species among a population that has to be close enough genetically to interbreed? And then diverge so that they can't interbreed?With regard to types of creatures the fossil record shows bushiness which one would expect from creatures richly endowed with variation from the onset.
But you haven't read the ones I've posted or the papers I've posted, have you? The books give an overview, not the nitty gritty details of the transitionals. Also, they give transitional species series, not the transitional individuals you are looking for. You need to dig into the nitty gritty monographs and papers to find those.I've read all those books by Romer, Colby, Kemp, Carrol et. al.
1. Darwin didn't need to understand the causes of variation; all that was required was that organisms do vary.ur32212451 said:You are correct. That was what Darwin believed. Darwin was wrong. Natural Selection acting alone can not be the cause of Evolution (i.e. All creatures extant and extinct share a common ancestry). Darwin did not understand genetics at all, therefore he did not understand the causes of variation. In 1865, Mendel sent Darwin his paper detailing Mendellian genetics. Darwin never commented on it. Alfred Russel Wallace, cofounder of what became known as Darwin's theory believed that Mendel's paper was very damaging to his and Darwin's theory.
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