Our first ancestor does not come from Sub Sahara

Discussion in 'Human Science' started by timojin, May 23, 2017.

  1. spidergoat Valued Senior Member

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    "The savanna area of Europe provided an area of retreat for the pre-humans, but it was not where they originated," said Böhme. (from Timojin's link)
     
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  3. sculptor Valued Senior Member

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    Where/when remain unknowns.
    and, I'm ok with that
     
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  5. Write4U Valued Senior Member

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    But if related species were so wide spread that early in the evolutionary chain, it would also be in conflict with the notion of a single "common ancestor", who I am sure could not have produced offspring in places 4000 miles apart. Instead it would suggest several common ancestors in different places, far apart from each other and possibly at different times.

    It would be interesting to find out if that new find already had 23 pairs of chromosomes (homo sapiens) instead of 24 (all other hominids). That would be a definitive tell-tale sign.
    http://www.evolutionpages.com/chromosome_2.htm
     
    Last edited: May 25, 2017
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  7. Walter L. Wagner Cosmic Truth Seeker Valued Senior Member

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    Knowing the proclivity for hominoid males to have sex with anything that looks female and looks somewhat like a hominoid, it is quite plausible that there was extensive exchange of DNA with Homo evolving in Africa/Eurasia throughout.

    As to the fossils, if there is any chromosomal material left, I would find that amazing (but not impossible, depending on the fossilization mechanism in play).
     
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  8. Write4U Valued Senior Member

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    Yes, indeed, in view of the fact that at that evolutionary stage both species would still look very much alike.
    Aah, this why we are told when a fossil still contains DNA. Not all fossils do, there's the rub.
     
  9. danshawen Valued Senior Member

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    So, now all I learned about Australopithecus and Pithecanthropus Robustus and Olduvai Gorge and Louis B. Leakey are relegated to the dust bin. My utter miseducation is almost complete.

    Is it too late to ask for a refund?
     
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  10. Write4U Valued Senior Member

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    Noooo ..... it's much too early for that. After all we are trying to look back millions of years, from fragments of once living things. It's a wonder and good great fortune when we find any fossils with viable DNA at all.

    But someday we'll find a pattern in these fragments that that can be genetically traced to wherever it leads.

    We know about Africa, but could there have been other places where precursors lived. The precursor family may have spread to several places, and developed hominoids and later hominid species (variations) independently.
    If it is a matter of intelligence, there are many intelligent species, which developed independently, why not independent offspring from a widely distributed precursor?
     
    Last edited: May 30, 2017
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  11. Michael 345 Valued Senior Member

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    I know there was no Ark of the Noah flavour

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  12. danshawen Valued Senior Member

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    When we finally find the "precursor" of all homonids, it is likely to have these characteristics:

    1) Older than anything else we ever found
    2) Fewer and sparser samples than any other precursor we have ever found, because of 1)
    3) Not widespread, or "widely distributed".

    In addition to this, DNA in bone marrow has been found to have a "half life" of about 521 years, so for every muliple of that, less and less base pair sequences will remain intact sufficiently to read any genetic information.

    Humans have two fewer pairs of chromosomes than primates (46 instead of 48) because some of an anomaly having to do with chromosome #2. When we have found the missing primate link, this will be the key. It is not known whether Lucy or Homo Erectus had 23 or 24 pairs, mainly because of the DNA half life already mentioned meant that not enough uncorrupted, undecayed DNA remained in the fossil record in order to make this determination.

    Quebec currently holds the record for evidence of the oldest life form on the planet at 4.5 billion years.
     
  13. Write4U Valued Senior Member

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    @ Michael,
    I just really noticed your signature.
    "Curiosity did not kill the cat
    It made the cat a scientist"

    The scientist's curiosity killed the cat when he opened the box.....

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  14. Michael 345 Valued Senior Member

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    If you're referring to Schroeder's cat

    It was only hiding in the box because it didn't want to take a bath

    It wasn't even in the box when it was opened

    Which lead to Schroeder wondering if it was MIA dead and blah blah blah to the outstanding stupid revelation

    we don't know anything until we investigate and find out

    Whoopee

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  15. Write4U Valued Senior Member

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    1) Yes
    2) Possibly because they are too old to have survived in a fossil state.
    3) We do find monkeys and apes over very widespread areas. from Africa to Asia.
    Moreover, at that time the continents may not have drifted apart yet allowing easy
    migration. The Gibraltar monkey is an example. A similar example can be found in Japan

    I found this very interesting and seems to support widely distributed varieties of the primate evolutionary branch.
    http://chestofbooks.com/crafts/scie...f-Monkeys-And-The-Countries-They-Inhabit.html
     
  16. danshawen Valued Senior Member

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  17. exchemist Valued Senior Member

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    Schroedinger.
     
  18. Michael 345 Valued Senior Member

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    Different person

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    Different cat

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    Different box

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    Different result

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    Bad spell checker + my active dyslexia

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  19. exchemist Valued Senior Member

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    Dylsexier?
     
  20. Michael 345 Valued Senior Member

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    No no no

    D i s eh wait a minute

    D e s

    44444get it

    Now you made me stretched and stttuer

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  21. timojin Valued Senior Member

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    Can you contribute anything beside hog washing ?
     

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