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Fossil Find Is Missing Link in Human Evolution, Scientists Say
National Geographic News ^ | April 13, 2006 | John Roach

Posted on 04/13/2006 12:18:35 PM PDT by Senator Bedfellow

When the famous skeleton of an early human ancestor known as Lucy was discovered in Africa in the 1970s, scientists asked: Where did she come from?

Now, fossils found in the same region are providing solid answers, researchers have announced.

Lucy is a 3.5-foot-tall (1.1-meter-tall) adult skeleton that belongs to an early human ancestor, or hominid, known as Australopithecus afarensis.

The species lived between 3 million and 3.6 million years ago and is widely considered an ancestor of modern humans.

The new fossils are from the most primitive species of Australopithecus, known as Australopithecus anamensis. The remains date to about 4.1 million years ago, according to Tim White, a biologist at the University of California, Berkeley.

White co-directed the team that discovered the new fossils in Ethiopia (map) in a region of the Afar desert known as the Middle Awash.

The team says the newly discovered fossils are a no-longer-missing link between early and later forms of Australopithecus and to a more primitive hominid known as Ardipithecus.

"What the new discovery does is very nicely fill this gap between the earliest of the Lucy species at 3.6 million years and the older [human ancestor] Ardipithecus ramidus, which is dated at 4.4 million years," White said.

The new fossil find consists mainly of jawbone fragments, upper and lower teeth, and a thigh bone.

The fossils are described in today's issue of the journal Nature.

Found Links

According to White, the discovery supports the hypothesis that Lucy was a direct descendent of Australopithecus anamensis.

(Excerpt) Read more at news.nationalgeographic.com ...


TOPICS: Culture/Society; News/Current Events
KEYWORDS: ardipithecusramidus; crevo; crevolist
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To: Conservative Texan Mom
Is the timeline determined by comparing it to other fossils, or by the strata in which it was found, or both, or something altogether different?

Well yes to both, but what teeth really allow us to do is establish relationships, by looking at changes in tooth patterns (e.g. number of molars v. incisors), tooth shape and amount of enamel. Closely related species obviously share more traits than less closely related species.

Teeth can also tell us what faces looked like, which in turn can tell us about brain size and of course tell us about diet. Studying teeth all day is also really boring, and one of the reasons I decided in the end not to become an anthropologist.

141 posted on 04/13/2006 4:07:17 PM PDT by Alter Kaker ("Whatever tears one sheds, in the end one always blows one's nose." - Heine)
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To: jec41
Quoting: "you can never prove the Theory of Evolution because you 1) were not there to observe the process and 2) cannot reproduce it. "

This is a VERY flawed argument. You could "prove" that Caesar's Rome never existed! You were not there to observe it; no person alive today observed it; no one can reproduce ancient Rome in a laboratory or anywhere else. "Fossil foundations" mean nothing--the Theory of a City called Rome in Caesar's time is "just a theory", "and always will be"... "and lacks good evidence". Ipso facto, Rome never existed!

I love creationist arguments. Let's imagine all the things we can deny the existence of because "you were not there to observe it" and "you cannot reproduce it." Hmm, ancient Israel, The Theory of Jesus, the Civil War.... so many things not observed, so many things unreproducible.

142 posted on 04/13/2006 4:07:46 PM PDT by thomaswest (Just curious)
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To: thomaswest
Quoting with added emphasis: The Theory of Evolution has always been and will always be a theory and one that lacks good evidence .

It seems to me that this a statement that says "my mind is closed forever on this". "Always will be..." a very strange way to 'think' that new evidence might appear or that you might be open to a new idea.

The statement would indicate he doesn't know what a scientific theory is. Its a hoax, no one could miss that much in science and still pass.

143 posted on 04/13/2006 4:08:35 PM PDT by jec41 (Screaming Eagle)
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To: jec41

This is an excellent site on philosophy.

http://www.importanceofphilosophy.com/FiveBranchesMain.html

Philosophy can be based on fact, as a starting premise from which to reason.


144 posted on 04/13/2006 4:12:37 PM PDT by Conservative Texan Mom (Some people say I'm stubborn, when it's usually just that I'm right.)
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To: Senator Bedfellow
Well, if they say so, it must be so.

Who needs science when bald conjecture will snow the peasants just as easily and effectively?

145 posted on 04/13/2006 4:14:24 PM PDT by JCEccles
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To: Alter Kaker
So does that mean I'm the only 120 year old on FR? Now I'm disappointed.

I have observed no other however your evidence is insufficient.

146 posted on 04/13/2006 4:16:31 PM PDT by jec41 (Screaming Eagle)
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To: JCEccles

Who needs science when bald conjecture will snow the peasants just as easily and effectively?

You're right. That's been done very effectively and well without science for thousands of years.

147 posted on 04/13/2006 4:17:12 PM PDT by ml1954 (NOT the disruptive troll seen frequently on CREVO threads.)
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To: Sofa King

They have videos and were arguing over which to watch. Except for my youngest, who doesn't like Dragon Ball Z and wanted to watch Barbie as Rapunzel. They were being ugly to each other, so I told them they couldn't watch anything. Now they're outside hiding Easter eggs from each other. Much more pleasant!


148 posted on 04/13/2006 4:17:22 PM PDT by Conservative Texan Mom (Some people say I'm stubborn, when it's usually just that I'm right.)
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To: Conservative Texan Mom

Regarding your post #122 about not feeling the need to restrict God with our limited knowledge....I agree...those who chose to limit God to a six day creation phase, or limit the age of the earth to a mere 6-12 thousand years, do seek to limit God...we can never possibly understand how God created what He did, nor the time frame He used...if we try to set the standard for God, using our limited knowledge, we seek to put Him into a little box of our own making, and constrain Him there...and that is something I am unwilling to do...

For those of us who believe in the God of the Bible, and also support evolution, we see God as the Creator, but we cannot know how or in what time frame, he carried out his creation...

But we can look at the physical evidence on the earth, and I expect that God hopes we use our intelligence to figure out what it all means...


149 posted on 04/13/2006 4:20:16 PM PDT by andysandmikesmom
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To: thomaswest
Quoting: "you can never prove the Theory of Evolution because you 1) were not there to observe the process and 2) cannot reproduce it.

Hope you don't think that is my quote.

150 posted on 04/13/2006 4:23:08 PM PDT by jec41 (Screaming Eagle)
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To: jec41

Certainly not! You seem sane. I quoted ejroth.


151 posted on 04/13/2006 4:28:31 PM PDT by thomaswest (Just curious)
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To: jec41

Yes, I have to say that your post seem to reflect a maturity that others seem to lack.


152 posted on 04/13/2006 4:28:35 PM PDT by Conservative Texan Mom (Some people say I'm stubborn, when it's usually just that I'm right.)
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To: Conservative Texan Mom
Philosophy can be based on fact, as a starting premise from which to reason.

Look a litle further, I think you are speaking of a preceived fact, not a explained fact.

153 posted on 04/13/2006 4:31:00 PM PDT by jec41 (Screaming Eagle)
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To: thomaswest
But that’s not what they actually say now is it?

The only people I ever see make this false connection to the civil war etc as not being observed nor reproducible are the evos as a strawman in order to mock and ridicule them.

In fact, the major volume and depth of non-science that flows out of these threads originates from the supposed scientists pro-evo. Is this more example of the evos demolishing arguments? It is really truly pathetic

So much that from them.

Wolf
154 posted on 04/13/2006 4:34:18 PM PDT by RunningWolf (Vet US Army Air Cav 1975)
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To: Right Wing Professor

That is very helpful. Thanks for educating me on that point.

Stratigraphy is where it's found in rock layers, right?


155 posted on 04/13/2006 4:35:13 PM PDT by Conservative Texan Mom (Some people say I'm stubborn, when it's usually just that I'm right.)
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To: ejroth
Quoting ejroth: "you can never prove the Theory of Evolution because you 1) were not there to observe the process and 2) cannot reproduce it. "

This is a VERY flawed argument. You could "prove" that Caesar's Rome never existed! You were not there to observe it; no person alive today observed it; no one can reproduce ancient Rome in a laboratory or anywhere else. "Fossil foundations" mean nothing--the Theory of a City called Rome in Caesar's time is just a theory, "and always will be"... "and lacks good evidence". Ipso facto, Rome never existed!

I love creationist arguments. Let's imagine all the things we can deny the existence of because "you were not there to observe it" and "you cannot reproduce it." Hmm, ancient Israel, The Theory of Jesus, the Civil War.... so many things not observed, so many things unreproducible. ------------ Ah, I see my error. Apologies to jec41.

156 posted on 04/13/2006 4:37:08 PM PDT by thomaswest (Just curious)
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To: andysandmikesmom

If you get a chance, read Job 38. It'll give you chills!


157 posted on 04/13/2006 4:40:24 PM PDT by Conservative Texan Mom (Some people say I'm stubborn, when it's usually just that I'm right.)
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To: Conservative Texan Mom
Stratigraphy is where it's found in rock layers, right?

Right.

158 posted on 04/13/2006 4:42:46 PM PDT by Right Wing Professor
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To: RunningWolf
"The only people I ever see make this false connection to the civil war etc as not being observed nor reproducible are the evos as a strawman in order to mock and ridicule them."

Nice fantasy. Being one of the people you are talking about, I NEVER said that the Civil War was not observed. It is of course, not reproducible. What I said was that you cannot prove with mathematical precision that the Civil War happened. All that can be had is evidence, and the interpretation of that evidence. I ( and the other people using this analogy) also made very plain that the evidence for the Civil War was overwhelming and only a moron would deny it happened.

We were showing how silly the argument "Were you there???" is; this is a common argument from anti-evos.

Try and be more honest next time, Mordo. I know it's against your nature.
159 posted on 04/13/2006 4:43:04 PM PDT by CarolinaGuitarman ("There is grandeur in this view of life....")
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To: jec41

Knowledge
(Knowledge is the mental grasp of the facts of reality. It is the awareness of the identity of particular aspects of reality. It is not just an awareness of reality, but an understanding of it. It is a successfully formed conclusion about some aspect of reality. An example of knowledge is the identification of the law of gravity. It is a characteristic of reality that is identified and understood.

Knowledge is gained through a successful evaluation of one's perceptions. It is through the use of reason that man draws conclusions about the world. It is through objectivity that man identifies the validity of those conclusions. Knowledge is the clear, lucid information gained through the process of reason applied to reality.)


This was what I was looking at, but I may be taking it out of context.


160 posted on 04/13/2006 4:44:21 PM PDT by Conservative Texan Mom (Some people say I'm stubborn, when it's usually just that I'm right.)
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