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  1. #1
    Damn The Man Mr. Peabody's Avatar
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    With all of the evolution debate going on right now, I thought this was an interesting article.

    Human Ears Evolved from Ancient Fish Gills

    Bjorn Carey
    LiveScience Staff Writer
    LiveScience.com
    1 hour, 6 minutes ago



    Your ability to hear relies on a structure that got its start as a gill opening in fish, a new study reveals.


    Humans and other land animals have special bones in their ears that are crucial to hearing. Ancient fish used similar structures to breathe underwater.


    Scientists had thought the evolutionary change occurred after animals had established themselves on land, but a new look at an old fossil suggests ear development was set into motion before any creatures crawled out of the water.


    The transition


    Researchers examined the ear bones of a close cousin of the first land animals, a 370-million-year-old fossil fish called Panderichthys. They compared these structures to those of another lobe-finned fish and to an early land animal and determined that Panderichthys displays a transitional form.


    In the other fish, Eusthenopteron, a small bone called the hyomandibula developed a kink and obstructed the gill opening, called a spiracle.


    However, in early land animals such as the tetrapod Acanthostega, this bone has receded, creating a larger cavity in what is now part of the middle ear in humans and other animals.


    Missing link


    The new examination of the Panderichthys fossil provides scientists with a critical "missing link" between fish gill openings and ears.


    "In Panderichthys, it is much more like in tetrapods where there is no longer such a 'kink' and the spiracle has widened and opened up," study co-author Martin Brazeau of Uppsala University in Sweden told LiveScience. "[The hyomandibula] is quite a bit shorter, but still fairly rod-like like in Eusthenopteron. It's like a combination of fish and tetrapods."


    However, it's unclear if early tetrapods used these structures to hear. Panderichthys most likely used their spiracles for ventilation of either water or air. Early tetrapods probably passed air through the opening. Scientists would need preserved soft tissue to say for sure.


    "That's the question that we're starting to investigate, whether early tetrapods used it for some ventilation function as well," Brazeau said. Whether it was for the exhalation of water or air, it's not really clear. We can infer that it's quite expanded and improved from fish."


    This research is detailed in the Jan. 19 issue of the journal Nature.

    Useless Limbs (and Other Vestigial Organs) First Four-Legged Animals Inched Along Invention Allows Humans to Breathe Like Fish How Evolution Works

    Visit LiveScience.com for more daily news, views and scientific inquiry with an original, provocative point of view. LiveScience reports amazing, real world breakthroughs, made simple and stimulating for people on the go. Check out our collection of Amazing Images, Image Galleries, Interactive Features, Trivia and more. Get cool gadgets at the new LiveScience Store, sign up for our free daily email newsletter and check out our RSS feeds today!

  2. #2
    Retired Ray xrayzebra's Avatar
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    ^^well the Evolutionist got a boost from the Catholic church. The stated that
    they didn't consider Intelligent Life a scientific thing and should not be taught.

  3. #3
    Who is this guy, again? travis2's Avatar
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    "Intelligent Life"??

  4. #4
    Retired Ray xrayzebra's Avatar
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    "Intelligent Life"??
    oops, sorry about that, meant Intelligent Design. (I think)

  5. #5
    Damn The Man Mr. Peabody's Avatar
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    ^^well the Evolutionist got a boost from the Catholic church. The stated that
    they didn't consider Intelligent Life a scientific thing and should not be taught.
    I think the church's position is that intelligent life is an hetical to their teachings.

  6. #6
    Retired Ray xrayzebra's Avatar
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    ^^draw you own conclusions. This is the article I was referring to"

    The Article in this mornings E-N:

    Vatican City - The Vatican newspaper has published an article saying "intelligent design" is not science and that teaching it alongside evolutionary theory is school classrooms only creates confusion.

    The article was in Tuesday's L'Osservatore Romano.

    Author Fiorenzo Facchini, a professor of evolutionary biology at the University of Bologna, laid out the scientific rationale for Darwin's theory of evolution. He lamented that certain American "creationists" had brought the debate back to the "dogmatic" 1800s and said their arguments weren't science but ideology.

  7. #7
    2nd Verse Same as the 1st Oh, Gee!!'s Avatar
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    I think the church's position is that intelligent life is an hetical to their teachings.

    Thank you, you've been a great crowd. Don't forget to tip your waiters.

  8. #8
    Damn The Man Mr. Peabody's Avatar
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    Thank you, you've been a great crowd. Don't forget to tip your waiters.
    Ba-dum Bum. I'm glad somebody got it.

  9. #9
    2nd Verse Same as the 1st Oh, Gee!!'s Avatar
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    Ba-dum Bum. I'm glad somebody got it.

    we should write a sitcom

  10. #10
    Corpus Christi Spurs Fan Phenomanul's Avatar
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    Thank you, you've been a great crowd. Don't forget to tip your waiters.

    The Vatican represents the Catholic Church and is the 'ins ution' that initially brought scientific progress to a standstill for over 4 centuries....

    Their backpeddaling is amusing to say the least...

    Their bashing of American 'creationists' only serves to prove that the Vatican is trying to dissociate itself from its own history... in an attempt to appease the larger crowd.

    To get to the grain, their 'position' is irrelevant to me. I find it ironic that somehow your 'camp' would now choose to validate something emanating from a 'religious' ins ution.... pretty convenient, I would say.

    You want change with that tip?

  11. #11
    Corpus Christi Spurs Fan Phenomanul's Avatar
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    Now addressing the article....

    Like I've always said... when IDer's draw conclusions based on Paleontological observations they are bashed as being non-scientific.... since, of course, they are not subjectable to experimentation.

    Yet somehow when evolutionists draw conclusions from these observations they are making valid 'scientific' claims????

    Hmmmmmm..... Again very convenient.

    Thank you.

  12. #12
    The Sean Marks Dance Duff McCartney's Avatar
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    we should write a sitcom
    About nothing?

  13. #13
    2nd Verse Same as the 1st Oh, Gee!!'s Avatar
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    The Vatican represents the Catholic Church and is the 'ins ution' that initially brought scientific progress to a standstill for over 4 centuries....

    Their backpeddaling is amusing to say the least...

    Their bashing of American 'creationists' only serves to prove that the Vatican is trying to dissociate itself from its own history... in an attempt to appease the larger crowd.

    To get to the grain, their 'position' is irrelevant to me. I find it ironic that somehow your 'camp' would now choose to validate something emanating from a 'religious' ins ution.... pretty convenient, I would say.

    You want change with that tip?
    Xray is the guy you're looking for, pal--he posted the article about "backpeddaling" catholics. I was merely showing my appreciating for Peabody's irreverent joke (i.e. Catholics are stupid).

  14. #14
    2nd Verse Same as the 1st Oh, Gee!!'s Avatar
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    yeah, it would be us just talking

  15. #15
    Damn The Man Mr. Peabody's Avatar
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    yeah, it would be us just talking
    It'll never work.

  16. #16
    I love J.T. smeagol's Avatar
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    Xray is the guy you're looking for, pal--he posted the article about "backpeddaling" catholics. I was merely showing my appreciating for Peabody's irreverent joke (i.e. Catholics are stupid).
    Not sure why there is a need to insult us.

  17. #17
    2nd Verse Same as the 1st Oh, Gee!!'s Avatar
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    Not sure why there is a need to insult us.

    that's peabody for you

  18. #18
    I love J.T. smeagol's Avatar
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    The Vatican represents the Catholic Church and is the 'ins ution' that initially brought scientific progress to a standstill for over 4 centuries....
    Which 4 centuries?

    Their backpeddaling is amusing to say the least...
    Don't stop at just "saying the least". Go on. What else does the Catholic Church have to be bashed about?

    Their bashing of American 'creationists' only serves to prove that the Vatican is trying to dissociate itself from its own history... in an attempt to appease the larger crowd.
    In 2000 years of history, The Catholic Church has never tried to appease the larger crowd. Try again, please.

  19. #19
    Damn The Man Mr. Peabody's Avatar
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    Which 4 centuries?

    Don't stop at just "saying the least". Go on. What else does the Catholic Church have to be bashed about?

    In 2000 years of history, The Catholic Church has never tried to appease the larger crowd. Try again, please.
    Not only that, but in one statement he criticizes the Church for stifling scientific progress and then follows that statement by criticizing the Church for acknowledging science

  20. #20
    Marilyn Rae Lover jochhejaam's Avatar
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    Not only that, but in one statement he criticizes the Church for stifling scientific progress and then follows that statement by criticizing the Church for acknowledging science
    Don't try to shift attention from your insinuating that the Catholics are stupid.
    (per Oh Gee)

    Smeagol, I don't think taking the Catholic Church to task has to be interpreted as a slight to Catholics.

    Didn't the Catholic Church in recent history deny the laity the right to even read the Bible? And then there's this little thing called indulgences.

    You knowing where you stand with God is the important thing, at least that's what's important to me.

  21. #21
    Damn The Man Mr. Peabody's Avatar
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    Don't try to shift attention from your insinuating that the Catholics are stupid.
    (per Oh Gee)
    No, it's okay, I can make fun of the Catholics, since I used to be one. I think that's the rule.

  22. #22
    2nd Verse Same as the 1st Oh, Gee!!'s Avatar
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    No, it's okay, I can make fun of the Catholics, since I used to be one. I think that's the rule.

    It's why I became jewish, for the jokes

  23. #23
    Fantasy Football Guru Guru of Nothing's Avatar
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    No, it's okay, I can make fun of the Catholics, since I used to be one. I think that's the rule.
    Wow! I used to be a Catholic too, and I thought I was the only one. I wonder, could there be three of us?

    Seriously, Catholics, so far as religious folk go, tend to be ... well, normal, and offer very little for which I can make fun of.

    But then you have Protestants, all 666 varieties of them.

    Peace be with y'all.

  24. #24
    Believe. gtownspur's Avatar
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    Which 4 centuries?



    Don't stop at just "saying the least". Go on. What else does the Catholic Church have to be bashed about?



    In 2000 years of history, The Catholic Church has never tried to appease the larger crowd. Try again, please.

    Gee! i don't know Smeagol. What has the Catholic Church done to appease everyone.....oh yea!! YOu have the Virgin of GUadalupedelaROsa Santa Maria de Quaxaca Simon DOn Patron Jose Cuervo!!, and many transposed pagan deities standing in for saints.

  25. #25
    Damn The Man Mr. Peabody's Avatar
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    Gee! i don't know Smeagol. What has the Catholic Church done to appease everyone.....oh yea!! YOu have the Virgin of GUadalupedelaROsa Santa Maria de Quaxaca Simon DOn Patron Jose Cuervo!!, and many transposed pagan deities standing in for saints.
    Yeah, I don't like it when religions borrow from "pagan" practices in order to attract a greater number of followers. It's somewhat deceptive.

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