My, my, my. Take a day or two to do some legitimate work, and look what happens. Well, let's see if we can get this back on track.
jcrawford wrote:Jose wrote:
I make this point only to indicate that finding fossils of two contemporaneous species does not rule out the idea that one might have been the ancestral species of the other.
Neither does finding human fossils of three contemporaneous "species" rule out the possibility that none of them were ancestral to the others and that they were just three racial variants of the same "species," as discovered in the Pit of Bones in Spain recently where Chris Stringer compares the largest single discovery and collection of hominid fossils in the world to Homo erectus, Homo sapiens and Homo neanderthalensis.
Naturally, Chris Stringer would make such a comparison. As you would expect for any transitional form, he found characteristics that were erectus-like, characteristics that were sapiens-like, and characteristics that were neanderthal-like. Does that make these fossils three contemporaneous species? Only if the sapiens characteristics were all on one subset of fossils, the erectus characteristics on a different subset, and the neanderthal characteristics on a third subset. It didn't turn out to be that way, though, so they are now referring to the Atapuerca hominids as heidelbergensis.
Does this make them a new species? Naah. It merely is a name, a "form-species" that allows us to talk about hominids with this suite of characteristics.
But back to the point I made above, and that enabled you to distract the discussion by debating whether Kangaroos hop or not. Since you have not refuted the logic and inescapable conclusion that being contemporaneous does not rule out an ancestor/descendent relationship of two species, it looks like we all agree that this is so. The caricature of evolution is ruled out--that evolution
requires that the whole population change at once, with new forms automatically and completely replacing the old ones. As it turns out, Lubenow's main assumption, upon which rests his reinterpretation of the fossils, is that descendent species
absolutely cannot be contemporaneous with their parent species. We know this assumption to be false. It doesn't matter whether we apply the logic to humans, wombats, cave crickets, or daffodils,
because we all use the same basic genetics so the same rules apply.
jcrawford wrote: Accounting for human origins by imagining that the human fossil record shows evidence of multiple human species in the past is a mythological form of historical representation, Jose.
I hereby invoke the Rules. Please present your evidence for this assertion. I say it's your private opinion, born of intransigence in the face of overwhelming data that are contrary to your belief. As we said at the outset, we require data. Mere opinion won't cut it.
jcrawford wrote: Based on the 'data' which the human fossil record presents, the 'data' which refutes genetic theories of human evolution, and the history of neo-Darwinist racial theories, Lubenow and I only arrived at the conclusion that all neo-Darwinst theories of human evolution in and out of Africa are inherently and inescapably racist.
Whether your conclusion is valid, or whether it is hogwash, is irrelevant at this point in this thread. The purpose of the thread is to examine the data. Until we have, your conclusions--and my conclusions--amount to mere gibberish. You'll have to present the data if you want to convince anyone that your interpretation is valid. I have presented data. The interpretation is clear, and has not been refuted. If you have data you'd liike us to evaluate, bring it forth.
jcrawford wrote: We especially don't want to classify people as different 'races' on the basis of skin color, physical characteristics, mental abilities and attributes, cultural perspectives and acheivements, technological innovation, fossil morphology, genetics or any other neo-Darwinist premises and theories which may result in classifying racially diverse groups in human history as different species. Historically documented biographies and testimonies of national or natural geographic origins are the sole arbiter and determinant in establishing modern ethnic and racial origins.
What are you talking about? "Race" has a clear genetic definition. You ignored it in the Bones of Contention thread, so I'll assume the same would occur here, but what kind of silliness justifies using geographical origin as the criterion? Even if you can justify it, it is still too vague to be workable. How many generations ago is the "origin"? Do we go back to Adam and Eve? If so, there are no races. Do we go back to the first population of anatomically modern humans? If so, there are no races. Do we go back to 1732? 1953? Or do we go back to the common ancestor of chimps and humans? Why stop there? Why not go back to the common ancestor of vertebrates? What date will you arbitrarily set as the time at which different racial groups suddenly exist?
jcrawford wrote: Human fossils, in and of themselves, give no indication of their 'species' or of having evolved from former human 'species.' It is only when they are manipulated and arranged in a progressively evolutionist order of 'species' gradation between human and ape fossils that the mirage (or reconstructed movie) of human evolution emerges from the pictorial representations of the skulls.
Indeed, no fossil gives any indication of its ancestors or descendents. It is necessary to have not only many fossils, but an understanding of the geological context in which they were found. I infer from what you've said that you [no, it must be Lubenow. You'd know better.] have some goofy notion that I've heard only from YECs so far, that "evolutionary sequences" are constructed solely by lining up fossils in a way that looks nice. I've heard this often enough that I think there must be someone out there preaching it.
Of course, if one either has no clue about, or simply denies, the vast body of data on geological dating, one would have no notion how to do it correctly. The sequence is determined by the ages of the fossils. One would have to deny that such a thing is possible if one insists that all fossils were formed in the Noachian Deluge, but that's no excuse for refusing to try to understand what those wonky biologists and geologists are actually saying.
jcrawford wrote: As previously posted by myself, the unfounded assumptions upon which interpretations and conclusions about genetic data, human relationships and human origins are premised are:
1. That mtDNA is passed on only by the mother...
<blah blah blah>
4. That mtDNA can determine species distance and distinguish between species....
The botton line, Jose, is that all theoretical interpretations of genetic data which support Darwin's original racial theory that all human beings originated from more primitive human and non-human species in Africa, are simply modern forms of neo-Darwinist racism in biology.
*sigh* Data really are irrelevant for you, aren't they? The assumptions you've listed are not pertinent to the conclusions I gave you (and which, I will remind you, you said you could not figure out on your own). I explained why those assumptions aren't pertinent. To respond to the interpretation I offered
by repeating the same thing strikes me as, well, rather odd. And
then to present Lubenow's bottom line of "it's all racism" is to leave science altogether and hide in the closet of unexamined opinion.
As I said before, if you have objections to the interpretation of the genetic data in the OP, present them--but make sure you have actual
reasoning behind your alternate suggestions. It's no good to refer to "unfounded assumptions" and claim that they prove the whole thing wrong (pardon me, racist) unless you can
at least show that those assumptions went into the interpretation. If you are unable to show that the interpretation is wrong, then I fear we're going to have to accept it.
It also doesn't help much to change the subject.
jcrawford wrote: The only factual data consistent with neo-Darwinist theories of human evolution is that all neo-Darwinists agree that modern men and women in Eurasia, the Middle East and Africa all descended from more primitive people in Africa who originated from African monkey and ape ancestors once upon a time. All other "consistent data" from fossils and genetics is premised, interpreted and extrapolated on the basis of Darwin's original assumptions about the origin of human 'species' from anthropomorphous apes.
Again you betray your misconceptions, or willful misrepresentation, of science. You make some weird assumption that biologists feel compelled to "prove" Darwin's hypothesis about human origins. Why would anyone want to do that? What good would it do? I don't think anyone gives a damn whether some scientist from 150 years ago was right about anything--
except that if it turns out that they really were right, and no one has ever been able to prove them wrong, then they become part of the historical context of the field. Given the personalities in science, I'd think it far more likely to hear "dang! he was right after all" than to hear "success! I've proven the old guy was right, and thereby earned myself a place in history as a forgotten dimbulb who couldn't think of anything new to do."
Excuse me--I have to finish grading those papers.