Did humans descend from other primates?otseng wrote: Man did not descend from the primates.
Are humans primates or should there be special biological taxonomy for humanity?
Please cite evidence.
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Did humans descend from other primates?otseng wrote: Man did not descend from the primates.
Yes, I completely agree with you.nygreenguy wrote: Systematic biology (hereafter called simply systematics) is the field that (a) provides scientific names for organisms, (b) describes them, (c) preserves collections of them, (d) provides classifications for the organisms, keys for their identification, and data on their distributions, (e) investigates their evolutionary histories, and (f) considers their environmental adaptations. This is a field with a long history that in recent years has experienced a notable renaissance, principally with respect to theoretical content. Part of the theoretical material has to do with evolutionary areas (topics e and f above), the rest relates especially to the problem of classification. Taxonomy is that part of systematics concerned with topics (a) to (d) above.
http://en.wikipedia.org/wiki/Systematics
We cant use taxonomy to infer any sort of evolutionary relationship.
So, since we cannot infer any sort of evolutionary relationship from Linnaean classification, it does not serve as evidence for evolution.1. Hierarchical (Taxonomic) Classification (Linnaeus)
* primates naturally forming nested hierarchical groupings
Prejudice? Your source acknowledges that Linnaeus believed in special creation, but that the Linnaean classification is now evidence for evolution - "Category number 1 (Hierarchical Taxonomic Classification) is a good example of a pattern that can, of course, be explained by special creation. Linnaeus did just that. But Darwin a century later explained the same set of ordered relationships between organisms as being the result of divergent evolution and shared ancestry."Goat wrote:Nope, not at all. That is your prejudice talking.otseng wrote:Here is further evidence that the Linnaean taxonomy has been hijacked to imply lineage.Goat wrote:This is from Humans as a Case Study for Evolution
12 LINES OF EVIDENCE FOR EVOLUTION OF HUMANS (& OTHER PRIMATES)
SEVEN LINES OF EVIDENCE FROM BIOLOGY
1. Hierarchical (Taxonomic) Classification (Linnaeus)
* primates naturally forming nested hierarchical groupings
Category number 1 (Hierarchical Taxonomic Classification) is a good example of a pattern that can, of course, be explained by special creation. Linnaeus did just that. But Darwin a century later explained the same set of ordered relationships between organisms as being the result of divergent evolution and shared ancestry.
Noticed correctly. As I asked before, I'm still waiting on the list of the claims of human evolutionary theory, a list of predictions, and a list of ways to falsify it. When this list is produced, I'll produce mine and the evidence to support my claims.I noticed you are still in the process of 'Let's attack evolution and it's evidence', and have yet to provide any evidence of your own.
Well, if you claim that, then I claim that God designed it that way that would exactly lead one to conclude that it was designed.The evidence is there that exactly would lead one to the conclusion that evolution happens.
Sorry, I meant analogous would not be directly related.nygreenguy wrote:otseng wrote:Because similar features can either be homologous or analogous. If it's homologous, they would not be directly related. So, similarity doesn't prove lineage.nygreenguy wrote:otseng wrote: Again, similarity doesn't prove lineage.
Says who?
Homologous is, by definition, derived from a common ancestor.
Like the hands/fins/wings of mammals. They all look an awful lot alike. Why is that?
Their hand bones have all the exact same parts, and the same number of parts, and are arranged in the same way. But only in what we classify as the mammals. Birds are different, but the same among birds.
If we follow the fossils in the reverse direction we even see the gradual changes in these parts.
If all of this doesnt prove lineage can be assumed from similarity, than Im not sure what can.
It was linnaeus who was the one who first hypothesized (formally) the classification of men with the great apes.otseng wrote:Yes, I completely agree with you.nygreenguy wrote: Systematic biology (hereafter called simply systematics) is the field that (a) provides scientific names for organisms, (b) describes them, (c) preserves collections of them, (d) provides classifications for the organisms, keys for their identification, and data on their distributions, (e) investigates their evolutionary histories, and (f) considers their environmental adaptations. This is a field with a long history that in recent years has experienced a notable renaissance, principally with respect to theoretical content. Part of the theoretical material has to do with evolutionary areas (topics e and f above), the rest relates especially to the problem of classification. Taxonomy is that part of systematics concerned with topics (a) to (d) above.
http://en.wikipedia.org/wiki/Systematics
We cant use taxonomy to infer any sort of evolutionary relationship.
But, the article that goat pointed to has as its very first evidence the Linnaean classification.
So, since we cannot infer any sort of evolutionary relationship from Linnaean classification, it does not serve as evidence for evolution.1. Hierarchical (Taxonomic) Classification (Linnaeus)
* primates naturally forming nested hierarchical groupings
The article doesnt say taxonomy is necessarily the evidence, rather the fact that the similarities which taxonomy was based upon reveals to us patterns which can be explained by evolution. It is a way of answering "Why do this organisms look so much alike".Category number 1 (Hierarchical Taxonomic Classification) is a good example of a pattern that can, of course, be explained by special creation. Linnaeus did just that. But Darwin a century later explained the same set of ordered relationships between organisms as being the result of divergent evolution and shared ancestry. More important, though, is the fact that organisms created de novo need not show varying degrees of similarity to one another. Each creature could be constructed completely differently from every other creature and made from very different materials. Humans need not look like apes, but we do. We show varying degrees of similarity to them and we are made of the same stuff. We could have been created this way but we must look like this if, indeed, we have evolved and diverged from a relatively recent common ancestor.
otseng wrote: Sorry, I meant analogous would not be directly related.
My point is that there are two possibilities for similar features. Similar features are not only homologous. But it can also be analogous.
Carl never tried to really defend special creation. In fact, when he first grouped primates with man, people got quite upset.otseng wrote: Prejudice? Your source acknowledges that Linnaeus believed in special creation, but that the Linnaean classification is now evidence for evolution - "Category number 1 (Hierarchical Taxonomic Classification) is a good example of a pattern that can, of course, be explained by special creation. Linnaeus did just that. But Darwin a century later explained the same set of ordered relationships between organisms as being the result of divergent evolution and shared ancestry."
It would seem to me he stuck to the morphological classification and creation had nothing to do with it.According to German biologist Ernst Haeckel the question of man's origin began with Linnaeus. He helped future research in the natural history of man by describing humans just like he described any other plant or animal.[110] Linnaeus was the first person to place humans in a system of biological classification. He put humans under Homo sapiens among the primates in the first edition of Systema Naturae. During his time at Hartecamp he had the opportunity to examine several monkeys and noted several similarities between them and man.[79] He pointed out that both species basically have the same anatomy; except for the speech he found no other differences.[111] Thus he placed man and monkeys under the same category, Antromorpha, meaning "manlike."[112] This classification received criticism from other botanists such as Johan G. Wallerius and Jacob Theodor Klein who believed that humans could not be placed under the category "manlike." They were also concerned that putting man as the same level as monkeys would lower the spiritually higher position man had. The classification as such also invoked another problem for religious people. The bible says that man is created in the image of god, if monkeys and humans were related that would mean monkeys were created in the image of god as well. This was something many could not accept.[113]
After this criticism Linnaeus felt he needed to explain himself more clearly. In the 10th edition of Systema Naturae introduced new terms including Mammalia and Primate, the latter which would replace Antromorpha.[114] The new classification received less criticism but many natural historians still felt that human had been demoted from its former place to rule over nature, not be a part of it. But Linnaeus believed that man biologically belongs to the animal kingdom and thus should be there.[115] In his book Dieta Naturalis he said "One should not vent one's wrath on animals, Theology decree that man has a soul and that the animals are mere aoutomata mechanica, but I believe they would be better advise that animals have a soul and that the difference is of nobility."[116]
Which leads me to wonder, is there data showing roughly what percentage of mutations result in detrimental, neutral, and beneficial results?GrumpyMrGruff wrote: This characterization only holds with respect to viral behavior. As has been previously pointed out, spawning actively infectious retroviruses isn't good for survival. However, loss of viral activity has no bearing on whether natural selection jury-rigs an ERV for host-beneficial functions after it is in the host genome. Conversely, some ERVs contain viral genes which are not completely inactivated and can promote retrovirus-related diseases such as cancer[1] and MS.[2]
It seems peculiar that if an ERV insertion would be a remote event, that 8% of our entire genome would consist of leftover virus injections.1% versus 8% is a bit of a non sequitur. More sequence information was processed between 2000 (1%) and 2004 (8%), leading to more identified ERV sequences.
It seems to me there would be three possibilities of viral injections - pathogenic, neutral, functional. If it was pathogenic, it would cause the destruction of the cell, so the only thing left would be the other two.You're also focusing on a false dichotomy here. There is no reason to assume that ERVs must be completely inactive genetic elements OR have host-beneficial functions.
It doesn't. My point is that if all ERV are found to be defective, then the most reasonable explanation is a common ancestor and not a common designer. If more functions are found, it becomes less reasonable. If a large majority of ERV are to be found with function, then it would be more reasonable to accept that it was designed.See the above regarding function. Again, why is it either-or? Why do they all need to be completely functionless?Also, the prediction that I mentioned before is that we will continue to find functions for ERV and that they will not all just be considered "defective" and "containing nonsense mutations". However, if they are all indeed found to be completely functionless, it would make more sense that it is an inactive remnant from an ancestor.
Makes sense, I accept your prediction.I'll make my own prediction, though it may be a while before I can dig up the relevant papers: ERV sequences shared by all primates, all mammals, etc. (and therefore thought to have been acquired by a distant ancestor) will be more likely (on average) to have host functions than ERVs shared by only great apes or those found only in humans (or recently acquired ERVs in any other genus/species). Why: Mutation and natural selection will have had more time to co-opt old ERVs than those incorporated only recently.
Yes, I agree that it cannot be extended to all genetic sequences.This line of reasoning might hold in genes and regulatory elements controlling morphology (e.g., homeobox genes, bone morphogenetic proteins, hedgehog genes, etc., and their promoters), but it cannot logically be extended from morphological features to all genetic sequences in an organism.
Another question. Is it possible to compare an ERV and a virus genome and show that an ERV was derived from an actual virus? Can it be determined what actually mutated?Bear in mind that regardless of whether an ERV has acquired a host-beneficial function, it will most likely have its own pathogenic genes broken by mutation (a few known examples don't - cancer, MS, causing ERVs).
I would agree. And this can be ruled out.Conversely, convergent evolution of all these inactive ERVs from different initial states is exceedingly unlikely.
I have been following along this debate very studiously, and am finding this discussion rather fascinating on both an intellectual and scientific level. I must confess that the technical nature of much of this debate has made me wish I studied more biology and less math and physics in college. Being an applied scientist, an engineer, I am used to taking theoretical constructs, and research/laboratory data, and applying it to the real world. Over the years, I have developed a profound respect for those working in the fundamental sciences.otseng wrote: Which leads me to wonder, is there data showing roughly what percentage of mutations result in detrimental, neutral, and beneficial results?
And another question, how do geneticists decide if something is an ERV?