Neanderthal Dna Illuminates Split With Humans - pizzaman777 - 10-12-2006 04:16 PM
Quote:13:34 11 October 2006
NewScientist.com news service
The first comparison of human and Neanderthal DNA shows that the two lineages diverged about 400,000 years ago and that Neanderthals may have had more DNA in common with chimps than with modern humans.
There is ongoing debate over whether the Neanderthals were a separate species, Homo neanderthalensis, or a subspecies of Homo sapiens. The first Neanderthals are thought to have emerged about 350,000 years ago, so the new findings from this DNA analysis strongly favour the theory that modern humans and Neanderthals share a common ancestor but are not more closely related than that.
Genetic analysis of Neanderthals is very tricky because mere fragments of nuclear DNA have been recoverable from fossils. Previous analyses have focused on mitochondrial DNA samples, which survive better.
James Noonan at Lawrence Berkeley National Laboratory in California, US, and colleagues compared human, chimpanzee and Neanderthal nuclear DNA samples. The newly compiled DNA dataset was derived from the remains of a 45,000-year-old Neanderthal fossil.
From the enriched dataset, the researchers calculated that humans and Neanderthals diverged approximately 400,000 years ago. And the new data promise to reveal more about the genetic basis of differences between humans and Neanderthals differences that presumably resulted in the success of modern humans as a species the researchers say.
This is a hint of exciting things to come as more Neanderthal sequence is produced, says David Haussler at the University of California, Santa Cruz, US.
The researchers say the findings strengthen the argument that Neanderthals did not contribute substantially to the modern human genome. Were there Neanderthals in our lineage? All of the genetics seems to be going in the direction that there werent, says Richard Potts, head of the Smithsonian Institution's Human Origins Program in Washington DC, US.
Noonan will present the findings at the American Society of Human Genetics conference in New Orleans, US, this week.
So where did we come from?
Neanderthal Dna Illuminates Split With Humans - corrosion - 10-12-2006 04:59 PM
Neanderthal Dna Illuminates Split With Humans - tsoldrin - 10-12-2006 05:04 PM
Quote:So where did we come from?
The same place they did. Think of it like an uside down tree, not a single line.
Humans Neanderthals Chimps (others)
Neanderthal Dna Illuminates Split With Humans - corrosion - 10-12-2006 05:38 PM
Think of it as well as the uneven material inside you that is energy is aligned and misaligned by the planets and how they lay in the system.
Depending on which planets you generate towards determines your mutation.
Neanderthal Dna Illuminates Split With Humans - pizzaman777 - 10-12-2006 09:21 PM
Any references to back this up, or is this your "opinion" :rolleyes:
Neanderthal Dna Illuminates Split With Humans - SerialExpLain - 10-13-2006 01:23 AM
Quote:Think of it as well as the uneven material inside you that is energy is aligned and misaligned by the planets and how they lay in the system.
Depending on which planets you generate towards determines your mutation
Well said Corrosion, I agree.
Neanderthal Dna Illuminates Split With Humans - saunatonttu - 10-13-2006 06:12 AM
I think the biggest incentive for the evolution of new species comes from outside the species, not within. As a planet "evolves" the conditions on that planet change and the species change to accommodate to that environment. Species' are Darwin's wedges that always seek to fill in the gaps within their biosphere by actively adapting to the environment through their perception of it.
Mere bacteria have plasmids which allow them to transfer DNA of their own creation to their offspring - what reason do we have to think that WE don't have that ability?
The reason we have found so few intermediate forms is that the environment changes suddenly and so do the species - much faster than through just mutation and sexual selection.
Neanderthal Dna Illuminates Split With Humans - pizzaman777 - 10-13-2006 06:50 PM
Very interesting theory, saunatonttu.
So what you're saying is you think that the adaptation of a species could occur within possibly a few generations, instead of much longer as Darwinism says, due to extreme conditions which would warrant this?
Are there any other examples besides bacteria?
Neanderthal Dna Illuminates Split With Humans - jack - 10-14-2006 02:43 AM
How the Neanderthals became the Basques
by David Noel
Neanderthal = Nephilim?
Fragments of Research Paper 38 - Part I
Written by John Denton 28th Dec 1996
Neanderthal Dna Illuminates Split With Humans - pizzaman777 - 10-14-2006 06:05 AM
Nice to see you back, jack :P
Are we getting into Basque and RH- again?
I'm reading your links tonight... thanks for the input.
Neanderthal Dna Illuminates Split With Humans - jack - 10-14-2006 09:56 AM
Quote:Are we getting into Basque and RH- again?
:Dlol, just a wee bit intrigued by it, perhaps it's in my blood. haha:P
Don't want to hijack you thread into Rh-, however I really am very interested in this unexplained blood anomaly, and had hoped for a few more opinions in the other topic (like you own) besides "racism" - oh well.
Anyhow, here is an interesting article about why it is so important to evolutionists to prove that Neanderthal man is a separate species, and not our ancestor.
Quote:Feature Article - September 1997
Neanderthal DNA Soup
by Do-While Jones
The Neanderthal Problem
There were reports in the general news media that "you're not a Neanderthal after all"1 because "we didn't mate with Neanderthals".2 We will discuss the study3 that prompted these reports later, and let you decide whether the DNA study results are conclusive or not. But first, you need to know why it is so important to evolutionists to prove that Neanderthal4 man is a separate species, and not our ancestor.
The first Neanderthal skeleton was discovered in 1856, just three years before the publication of Darwin's Origin of Species. The nineteenth century evolutionists believed that apes evolved into some sub-human missing links, which evolved into man. Naturally, Neanderthal man was immediately assumed to be one of those missing links and was depicted as at the right.
The more scientists learned about Neanderthal man, the more they realized he did not fit in with their theory very well. Apes supposedly got smarter as their brains gradually evolved in size from about 400 cc to modern man's 1350 cc brain.5 It was difficult to explain how a Neanderthal man, with his 1740 cc brain6, fit into this process.
The Neanderthal skeletons were found in graves with hands neatly folded, surrounded by fossilized pollen. This is a pretty clear indication that they were buried with flowers in some sort of funeral ceremony. Only humans do that. Furthermore, they found tools (and possibly a musical instrument7) associated with some of the Neanderthal remains. Every indication was that he was as fully human as Homo sapiens (modern man).
But worst of all was the time problem. According to the evolutionists' dating, Homo sapiens supposedly evolved 100,000 years ago.8 Some people even claim there is evidence of Homo sapiens in Australia 116,000 to 176,000 years ago.9 Neanderthal man supposedly lived from 36,000 to 75,000 years ago,10 or maybe as long as 82,000 years ago.11 Homo sapiens could not have evolved from Neanderthals if Homo sapiens were here first. Even if you assume that Neanderthals existed more than 176,000 years ago, but their fossils just haven't been discovered yet, that's still a problem because the theory requires the inferior species to die out for the superior species to evolve.
Here's why death is necessary for evolution: Suppose that you, through some extremely fortunate (we have to carefully avoid the adjective "miraculous" ) chance, acquire a new, beneficial gene by random mutation. Since you produce children through a sexual process in which your children inherit half of your genes and half of your spouse's genes, the odds are that only half of your children will acquire the marvelous new gene. One quarter of your grandchildren will acquire it; one eighth of your great-grandchildren will acquire it; and so on. Your marvelous new gene will not become a dominant characteristic in future generations.
But suppose that it is a cruel world, and many children don't survive. The half of your children who have the marvelous new gene will win the battle for survival. Your children without the new gene, and all your neighbor's children, will die before they mature enough to have children. Your sons and daughters will have no choice but to marry their sisters and brothers who have the new gene, so the new characteristic provided by this new gene will become established in the population.
We may have over-simplified the process a little bit too much, but that's the theory of evolution in a nut shell (a particularly appropriate metaphor, in this case). Evolution depends upon death to weed out the genes of the inferior race so that the superior race can become established.
Neanderthal man and modern man could not live together for tens of thousands of years, interbreeding with each other, without the races blending. Therefore, the evolutionists have to believe that Neanderthal man and modern man were distinct species, incapable of interbreeding.
Evolutionists have held this belief for several years, even before the questionable DNA study. For example, it has been argued that nasal features indicate that modern man and Neanderthal man were separate species.
"It is mind-boggling how different Neandertal nasal structures are from those of humans", [Jeffery H.] Schwartz [of the University of Pittsburgh] holds. 12
From his choice of words it is clear that Schwartz didn't consider Neanderthals to be human.
Homo heidelbergensis or Homo philistensis?
In recent years, some evolutionists have claimed that H. sapiens and H. neanderthalensis came from a common ancestor called H. heidelbergensis about 500,000 years ago. The figure at the left 13 shows a reconstruction of H. heidelbergensis based entirely upon two teeth and part of a leg bone found in Boxgrove, England, a lower jaw found near Heidelberg, Germany and a skull from Bodo, Ethiopia.
Pardon our skepticism, but there appears to be a lack of objectivity here. Suppose that a Jewish archeologist, looking for proof that Goliath and other Philistine giants really did exist, found the Boxgrove leg bone in Jordan. The figure shows that the Boxgrove leg bone is larger (thicker and stronger) than the average modern leg bone. So, the Jewish archeologist could claim that he had found the remains of a race of giant men which he called H. philistensis.
Would any good scientist take his claim seriously? Wouldn't he be laughed at if he tried to connect it with a skull in Ethiopia? You know that he would be criticized for starting with the idea that Philistine giants existed, and trying to twist the data to support his preconceived notion. But evolutionists join a British leg, an Ethiopian skull, a jawbone from Germany, and put it in the human family tree14 because of their preconceived notion that a common ancestor with these characteristics must have existed. This is not objective science!
Evolutionists desperately need proof that Neanderthal man is a separate species to get him out of the line of human evolution because he just doesn't fit properly into the theory of evolution. He's too late and too human to be an ancestor. So, they turned to DNA to give them the proof they needed. The news reports say they found it. But did they?
1 Newsweek, July 21, 1997 page 65
2 Time, July 21, 1997 page 58
3 Krings et al., "Neandertal DNA Sequences and the Origin of Modern Humans", Cell, Volume 90, July 11, 1997 pages 19-30
4 Note: we use the American spelling, "Neanderthal", except in the quotations that use the British spelling, "Neandertal".
5 "The First Steps", National Geographic, Feb 1997 page 89
6 Tattersall (1995) The Fossil Trail page 181
7 "Neanderthal Noisemaker", Science News, Nov 23, 1996 page 328
8 "The First Steps", National Geographic, Feb 1997 page 92
9 "Human Origins Recede in Australia", Science News, Sept 28, 1996 page 196
10 "Brawn of Humanity", Science News, May 24, 1997 page 322
11 Science News, Nov 23, 1996 page 328
12 "Nosing into Neandertal anatomy", Science News, October 1996 page 234
13 "The First Europeans", National Geographic, July 1997, page 108
14 Tattersall (1995) The Fossil Trail (Ev) page 234. This figure is shown on page 5 of this issue of Disclosure.
Neanderthal Dna Illuminates Split With Humans - saunatonttu - 10-16-2006 07:55 AM
Quote:So what you're saying is you think that the adaptation of a species could occur within possibly a few generations, instead of much longer as Darwinism says, due to extreme conditions which would warrant this?
Yes. I think evolution is guided by natural events in the evolution of the environment i.e. the planet. As a planet grows older, the environment changes which creates new species, in a matter of generations. Mutations are too rare and random and there's not enough change pressure in sexual selection.
There's an incentive for evolution built into the way the universe works. The same goes for us, too - we are supposed to evolve.
Quote:Are there any other examples besides bacteria?
Not really, 'cause all more evolved species use chromosomal DNA, not plasmids. Plasmids are separate molecules of DNA which makes them easier to detect, whereas more evolved species use chromosomal DNA which means the new DNA molecules are integrated in the chromosomes.
I'm guessing current science doesn't have the necessary methods/knowledge to see which parts of the DNA are created at what point of the evolution.
All in all, I don't see a point in "defending" any contemporary scientific theory (as I've seen done on other forums), 'cause there will be adjustments made to them numerous times. We know but a small fraction of the whole reality.