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Author | Topic: True knowledge exists in knowing that you know nothing | |||||||||||||||||||||||||||||||||||||||
Percy Member Posts: 22929 From: New Hampshire Joined: Member Rating: 7.2 |
Hey, Porky, welcome back! I didn't think we'd see you again.
Porkncheese in reply to RAZD writes: This is on that website you provided."Dendrogram The following dendrogram represents a somewhat misleadlingly linear "great chain of being" / "ascent of man" model of human evolution. Hopefully this will be corrected in future, as the various other branche son the primate evolutionary tree are fille dout." What you quoted is on the website, but it's not one of the webpages RAZD linked to. It's on Palaeos Vertebrates Primates Dendrogram. Don't know why RAZD sent you to that website. That dendrogram makes it seem like chimps (Pan) are descended from gorillas (they're not), and that people are descended from chimps (they're not). And then there's the typos.
Its says it's misleading. All the suggestions I've read on that site and elsewhere start with "probably" "perhaps" "maybe" or other words of this nature. Yes, it's very misleading. And the words "probably", "perhaps" and "maybe' do not occur on this page, and I don't see where they occur on any other pages in ways that would lead you to question them, so you're going to have to be specific about which webpages. Primate evolution, especially hominid evolution, is thought to be more of an incestuous bush than a linear progression. I'm not sure what RAZD was trying to communicate, but here's a simple evolutionary tree that gives a good idea of degree of relatedness. As you can see, humans are closest to chimps, next closest to gorillas, next closest to orangutans, and so forth (click on image to enlarge):
You asked about evolution before primates, and that turns out to have a complicated answer. Old World monkeys split from New World monkeys about 35 million years ago, so obviously there were already primates by that time. As near as I can tell by poking about on Wikipedia (try Timeline of human evolution - Wikipedia) the first primates came about around a 100 million years ago at the same time as tree shrews, rodents and rabbits. --Percy
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1.61803 Member (Idle past 1753 days) Posts: 2928 From: Lone Star State USA Joined:
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Rrhain writes: Indeed, you can find anybody to claim anything on the interwebs."You were not there for the beginning. You will not be there for the end. Your knowledge of what is going on can only be superficial and relative" William S. Burroughs
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Porkncheese Member (Idle past 518 days) Posts: 198 From: Australia Joined: |
On message 38 I asked what did the primate evolve from.
Message 39 suggested I search the web for answers. Not sure why I'm being rediculed. Anyhow that question remains.What did the early primate evolve from?
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Taq Member Posts: 10295 Joined: Member Rating: 7.5
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Porkncheese writes: What did the early primate evolve from? I may skip a few steps, but this is it in a nutshell. Primates evolved from a common mammalian ancestor. Mammals evolved from a common synapsid ancestor. Synapsids evolved from a common tetrapod ancestor. Tetrapods evolved from a common vertebrate ancestor. Vertebrates evolved from a common eukaryote ancestor. Eukaryotes evolved from a lineage going back to the first life forms.
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Coyote Member (Idle past 2355 days) Posts: 6117 Joined: |
Not sure why I'm being rediculed. You are meeting some pushback because you fit the standard creationist profile very closely, and we've seen this same behavior dozens of times in the past.Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge. Belief gets in the way of learning--Robert A. Heinlein In the name of diversity, college student demands to be kept in ignorance of the culture that made diversity a value--StultisTheFool It's not what we don't know that hurts, it's what we know that ain't so--Will Rogers If I am entitled to something, someone else is obliged to pay--Jerry Pournelle If a religion's teachings are true, then it should have nothing to fear from science...--dwise1 "Multiculturalism" demands that the US be tolerant of everything except its own past, culture, traditions, and identity. Liberals claim to want to give a hearing to other views, but then are shocked and offended to discover that there are other points of view--William F. Buckley Jr.
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Tangle Member Posts: 9580 From: UK Joined: Member Rating: 7.0 |
PorknCheese writes: What did the early primate evolve from? Well I copied and pasted your words.... "What did the early primate evolve from?" ...into google and the first hit was this: http://anthro.palomar.edu/earlyprimates/early_2.htm
quote: It goes on to explain in a lot more detail. You're going to have to live with the odd 'probably' now and then - when real scientists don't know the answer to total certainty, they say so and say why. Is there a reason you're asking this question?Je suis Charlie. Je suis Ahmed. Je suis Juif. Je suis Parisien. I am Mancunian. I am Brum. I am London.I am Finland. Soy Barcelona "Life, don't talk to me about life" - Marvin the Paranoid Android "Science adjusts it's views based on what's observed.Faith is the denial of observation so that Belief can be preserved." - Tim Minchin, in his beat poem, Storm.
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Taq Member Posts: 10295 Joined: Member Rating: 7.5
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Porkncheese writes: Thanks for the links.This is on that website you provided. "Dendrogram The following dendrogram represents a somewhat misleadlingly linear "great chain of being" / "ascent of man" model of human evolution. Hopefully this will be corrected in future, as the various other branche son the primate evolutionary tree are fille dout." Its says it's misleading. All the suggestions I've read on that site and elsewhere start with "probably" "perhaps" "maybe" or other words of this nature. Why?
It is misleading to put any fossil in a direct line of ancestry because you can't determine such relationships from fossils. Even if you dug up two human fossils you could not determine if one was the ancestor or descendant of the other. What you can do is determine what features the fossil shares with other species, and then arrange those fossils in a cladogram according to their shared features. In a cladogram, no species is directly ancestral to another. For example, this is a cladogram for hominid species:
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Porkncheese Member (Idle past 518 days) Posts: 198 From: Australia Joined: |
I did see that website
According to the quote presented "The existing, very fragmentary fossil evidence suggests...""They probably were" "These primate-like mammals will remain rather shadowy creatures for us until more fossil data become available" Sure is alot of conjucture. And from this knowledge these trees are drawn up showing direct links between every species all the way back to the ocean. Umm okay
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ringo Member (Idle past 661 days) Posts: 20940 From: frozen wasteland Joined:
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Porkncheese writes:
In Message 1 you were complaining that, "so many people seem to be so sure of their views and opinions." Sure is alot of conjucture.Now you're complaining that there's too much conjecture? Which is it?
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Coyote Member (Idle past 2355 days) Posts: 6117 Joined: |
Sure is alot of conjucture. And from this knowledge these trees are drawn up showing direct links between every species all the way back to the ocean. Umm okay And you have a better idea, I suppose? Let's try a little quiz: what, in your opinion, is the age of the Earth?Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge. Belief gets in the way of learning--Robert A. Heinlein In the name of diversity, college student demands to be kept in ignorance of the culture that made diversity a value--StultisTheFool It's not what we don't know that hurts, it's what we know that ain't so--Will Rogers If I am entitled to something, someone else is obliged to pay--Jerry Pournelle If a religion's teachings are true, then it should have nothing to fear from science...--dwise1 "Multiculturalism" demands that the US be tolerant of everything except its own past, culture, traditions, and identity. Liberals claim to want to give a hearing to other views, but then are shocked and offended to discover that there are other points of view--William F. Buckley Jr.
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Tangle Member Posts: 9580 From: UK Joined: Member Rating: 7.0 |
PorknCheese writes: "The existing, very fragmentary fossil evidence suggests...""They probably were" "These primate-like mammals will remain rather shadowy creatures for us until more fossil data become available" Sure is alot of conjucture. And from this knowledge these trees are drawn up showing direct links between every species all the way back to the ocean. It's not conjecture it's presenting the facts as we know them. But did you read the whole article? It gives you a readable and easily understood explanation of how primates evolved?
Umm okay Is that 'ok I understand' or 'ok, just as I thought, bullshit'? Here's the summary of what we know.
quote: Je suis Charlie. Je suis Ahmed. Je suis Juif. Je suis Parisien. I am Mancunian. I am Brum. I am London.I am Finland. Soy Barcelona "Life, don't talk to me about life" - Marvin the Paranoid Android "Science adjusts it's views based on what's observed.Faith is the denial of observation so that Belief can be preserved." - Tim Minchin, in his beat poem, Storm.
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Taq Member Posts: 10295 Joined: Member Rating: 7.5
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Porkncheese writes: Sure is alot of conjucture. And from this knowledge these trees are drawn up showing direct links between every species all the way back to the ocean. Fossil data is not the only data there is. DNA data is extremely powerful, and it clearly shows that all vertebrates share a common ancestor, all the way back to the ocean. Edited by Taq, : No reason given.
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PaulK Member Posts: 17907 Joined: Member Rating: 7.3
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One of the fundamental points of science is to have the honesty to admit to uncertainties. Even in physics there is uncertainty in many measurements, and that uncertainty has to be accounted for. Sometimes - in astronomy for instance - the uncertainties can be very large.
So, for phylogenies where the evidence is sparse and fragmentary - and we are likely missing many species - scientists do the best they can and where the evidence is inconclusive they admit to it. And sometimes something comes along that shakes things up. Recently there was a proposal that proposed a rather different view of the relationship between two major dinosaur groups. Now there is new evidence around the evolution of the ray-finned fish. Ancient fish skulls But this is science. If you want false certainty, then religion can give you that. But science's honesty and willingness to admit the possibility of error is the reason why science has a far better record of getting to the truth.
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Porkncheese Member (Idle past 518 days) Posts: 198 From: Australia Joined: |
ToE has collapsed under its own admissions of speculation being drawn from fossil evidence that is very fragmented.
In a revealing statement that completely exposed the theory it was admitted that Mammals will remain rather shadowy creatures for us until more fossil data become available Obviously not enough data to draw factual conclusions from
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Taq Member Posts: 10295 Joined: Member Rating: 7.5
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Porkncheese writes: ToE has collapsed under its own admissions of speculation being drawn from fossil evidence that is very fragmented. Again, fossils aren't the only evidence. The DNA evidence on its own has proven evolution beyond any reasonable doubt.
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