Evidence for Universal Common Descent

Discussion in 'Science' started by usfan, Sep 30, 2018.

  1. Mamasaid

    Mamasaid Banned

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    So what? Nobody cares how you begged ,borrowed,and stole your way through school .

    Now, surprise us by contributing an actual argument or point to the discussion. No, pinching off a link to an article you never read and don't understand does not count.
     
    Last edited: Oct 8, 2018
  2. Mamasaid

    Mamasaid Banned

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    False,it is Africa . You just failed a 7th grade science quiz.
     
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  3. truth and justice

    truth and justice Well-Known Member

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    That must have been a really easy course. I remember your comments about dissolved oxygen!
     
  4. primate

    primate Well-Known Member Past Donor

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    MTdna is evidence for Out of Africa. There is evidence for a multi-regional hypothesis for the origin of Homo but it pales in comparison to Out of Africa.
     
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  5. Mamasaid

    Mamasaid Banned

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    Right. And likely there was more than one wave out of Africa, and then there was the resulting admixture that came along with that and with peoples migrating east-then-west, north-then-south, etc.
     
    Last edited: Oct 8, 2018
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  6. primate

    primate Well-Known Member Past Donor

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    Salmonella and E coli dIverged about 10MYA. The shigella toxin in E coli occurred via transduction a method for evolution, two of many.
     
  7. Robert

    Robert Well-Known Member Past Donor

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    Remind me. I don't have clue one what you are discussing. What context are you talking of reference dissolved Oxygen?

    Chemistry in college must be very standard.
     
  8. primate

    primate Well-Known Member Past Donor

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    Correct.
     
  9. Robert

    Robert Well-Known Member Past Donor

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    Likely you say. Try to be definitive.

    Somebody, probably you, declared blacks arrived in Europe. Show proof. Why would blacks change to whites?
     
  10. Robert

    Robert Well-Known Member Past Donor

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    That is a serious hike out of Africa. Why leave Africa?
     
  11. Robert

    Robert Well-Known Member Past Donor

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    You sound just so Democratic party type. Wonder why?

    Do you vote for Democrats?
     
    Last edited: Oct 8, 2018
  12. Mamasaid

    Mamasaid Banned

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    And they got it on with denisovans and neandertals. And denisovans and neandertals with each other. What a party!
     
  13. primate

    primate Well-Known Member Past Donor

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    You have no idea of the methods of evolution. I gave you two of which one is transduction.
     
  14. Mamasaid

    Mamasaid Banned

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    Stop trying to change the subject, Robert. If you don't understand the material, then just ask one of us.
     
  15. Robert

    Robert Well-Known Member Past Donor

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    I ask experts.
     
  16. Mamasaid

    Mamasaid Banned

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    Why not leave Africa?

    And....you do realize we are talking about the migrations that took 1000s of years, right? I imagine you with this picture in your head of a Kenyan marathon runner running from Kenya to Eastern China.
     
  17. Mamasaid

    Mamasaid Banned

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    Better go do that, then....
     
  18. Robert

    Robert Well-Known Member Past Donor

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    For an odd reason, you can bet your bottom dollar that people with your view are devoted Democrats. If you vote for republican, say so.
     
  19. Robert

    Robert Well-Known Member Past Donor

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    Africa has such a varied climate. You can live in temperate zones or very cold weather to severe heat. The path out of Africa seems to hold no advantages.
     
  20. Robert

    Robert Well-Known Member Past Donor

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    Now you get why I bought a top rated book on this topic.
     
  21. Robert

    Robert Well-Known Member Past Donor

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    That is a long distance for sex. (I almost corrected your spelling)
     
  22. Mamasaid

    Mamasaid Banned

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    Of course, it isn't as easy to survive as you make it sound. Nomads were...in nutshell...nomadic! Males splintered off and found new tribes. Humans spread out over space were less susceptible to pandemic, which furthermore encouraged migration, even as little as a mile a year(how many years to span 5000 miles? You do the math). Humans were ignorant and shortsighted. They were not planning cities and long term food solutions. A bad storm was smiting from the gods, and so they moved. An ecological shudder of the food chain, as short lived as those may be, would have forced humans to move or die (that's quite the motivator). I could keep going and going...suffice it to say there is literally a huge list of reasons for them to have migrated and dispersed, and of reasons why this migration and dispersion was awarded by natural selection.

    As I am sure the expert in the book you bought told you.
     
    Last edited: Oct 8, 2018
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  23. Robert

    Robert Well-Known Member Past Donor

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    But to land in Europe?

    What are the advantages?

    Why are no black tribes located in Europe?
     
  24. usfan

    usfan Banned

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    Really? An unsourced, unevidencd assertion?

    There is no evidence for this claim. It is a belief.
     
  25. usfan

    usfan Banned

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    Empty words, with no facts, evidence, or reason. I can only dismiss unevidenced assertions.

    If you have an 'idea' of the 'methods of evolution, then present them. Alluding to some mystical mechanism is not a scientific debate.
     

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