14
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Is Ida the Missing Link or Just Another Link?

posted May 26, 2009 - 9:25am
Is Ida the Missing Link or Just Another Link?

On May 19th, “Ida”, or Darwinius Masillae, was introduced to the world as the historical missing-link species of primate evolution, and since then, has stirred up a mixture of excitement and controversy.

Discovered in Germany’s Messel Pit, scientists have determined that Ida is a 4 -million-year-old fossil that is, at 95 percent preserved, the most complete remnant of a primate ever found.

According to Jorn Hurum, a paleontologist at the University of Oslo’s Natural History Museum who led the research on Ida, the Darwinius Masillae links the evolutionary gap between advanced primates, such as apes, monkeys and humans, with more remote primates, such as lemurs.

“This fossil will probably be pictured in all the textbooks for the next 100 years,” said Hurum. “This is the first link to all humans . . . truly a fossil that links world heritage.”

With four legs, a long tail, soft tissue and fur, Ida is about the size of a small cat. Additionally, she contains several unquestionable primate-like characteristics, such as grasping hands, forward-facing eyes, clawless digits with nails, moderately short limbs, and opposing thumbs. Furthermore, Ida was incredibly preserved to the point where scientists were even able to see her last meal – fruits, seeds and leaves- and how long she lived – an estimated nine or ten months.

“It tells a part of our evolution that's been hidden so far,” said Hurum. “It's been hidden because the only [other] specimens are so incomplete and so broken there's nothing almost to study."

Ida is the link that will connect us with other mammals, said Sir David Attenborough, the voice of countless British natural history programs.

"Now people can say, 'OK, we are primates, show us the link," said Attenborough. "The link they would have said up to now is missing – well, it's no longer missing."

Despite these findings, however, some critics from the scientific, and religious, community say that the hype over Ida has been overly exaggerated.

Chris Beard of the Carnegie Museum of Natural History at John Hopkins University claims that Ida is more like a third cousin twice removed.

“It's not a missing link, it's not even a terribly close relative to monkeys, apes and humans, which is the point they're trying to make," said Beard. "It's part of the primate family tree that is about as far away from humans as you can get and still be a primate."

Other scientists claim that every fossil is a link, with Ida not being any more special than the rest, with the exception of her incomparable preservation.

“What does it tell us about human evolution that we didn't know?” said John Fleagle, a paleoanthropologist at Stonybrook University. “Precious little.”

For creationist Ken Ham, president of Answers in Genesis, the hype over this finding is simply the media’s way to promote an ideology and an upcoming television special.

“In the wake of a lot of controversies in creation versus evolution, evolutionists want to be able to announce they have the ultimate proof,” said Ham. “It's obviously a ploy to promote a book and a television special and to indoctrinate the public in evolution by making a lot of statements that are way beyond what the scientists themselves wrote."

Despite the controversy circling the issue, Ida’s discovery is clearly a substantial stepping stone in the theory of evolution.Whether or not one believes Ida to be the missing link, a trivial link, or somewhere in between, it is clear that further research is needed to determine just how significant this finding really is.



Comments

Ida is not really impressing science colleagues.

I felt I should pass this on after making the statement of "scientifically inconsequential" in the post yesterday. I am not alone. http://www.sciencemag.org/cgi/content/full/324/5931/1124 I hoped you can link to this article. Basically the missing grooming claw on the second toe that lemurs and tarsiers have -- convinced Hurum and others that Ida's "missing" the claw toe puts her on the branch that leads leads to apes, monkeys, and humans. Hurum, et al. might have a case, but I'm not alone, and i'll be long gone by the time a solid resolution is reached.

Ida is Hype, Marketing, and Scientifically Inconsequential

You may, or may not, have linked to the Science website I noted in my earlier comment. The minute I read the posting on the Science site -- and Anne Gibbon's well written article, I decided I could write something about the hype -- also writing something about the human efforts of primatologists, anthropologists, and even archeologists to legitimize their work as real Science. I did not. I worked on the other science postings here. I wrote a satirical review of the subject in another "primatology realm" report Anne Gibbons did in Feb. 2007, and tried to inject humor and perspective into it by recalling one of Louis Leakey's efforts at communicating with American "students" of the subject, of interpretations of evidence and tools. http://www.xomba.com/primatologists_stunned_imaginations_exceeded_anthropologist_astonished Upon further internet research and available literature perusal, I conclude that "cute" little Ida was/is marketing, and hype. Think of Ida as IDeA for selling the story, but preposterous as a piece of definitive, remarkable linkage to any other extant species that has not already been established by others with other morphological means. (Are the earbones intact?) Ida is well preserved, but is not the "Missing Link" or even anything special as a link. Ida is/was something promoted that the people involved in producing the Discovery raft of "soft science" programs put together for a marketing tool, for advertising, for profit. I suppose they have recovered their investment. One comment (here, above) mentioned "Cats and Dogs, and then it would be interesting," and that made me chuckle. Maybe the commenter did not realize the full scope of life on Earth? The genetic trail, and the morphological trail, links all of us as part of an organic infection of planet Earth. We live off the inorganic resources (rocks, processed), obtain fossil solar energy, mine radioactive isotopes to produce electricity, eat solar energy collectors and their hydrocarbon stores, as well as eating those that eat these green machines (plants) and we eat the animals that eat the plants. And there was a time in our direct line of ancestry when we were mice-like creatures with potential to become saber tooth tigers, dogs, cats, elephants, horses, antelope, cattle, pigs, or even bats, or monkeys, lemurs, and gorillas -- and humans -- and further back, the chance to become reptilian, or fish and frog, or newt and salamander, as well as take wings with feathers and fly the air, seems to have been available. It appears that common genetic material is shared by all mammals, and delving deeper -- by all living things -- so that it indicates that all living things on Earth are a part of the same massive Earth-life "infection." Did Ida leave any genetic material? Nope. Unless she was of reproductive age and had borne young -- she links to nothing living. But she probably had cousins or siblings -- and stuff of them might still be around. What killed her? Bad dates? [like in "Raiders"]

Great Info

Congrats to whoever wrote it! I really didn't know any of it and made a very interesting read. And I really agree with Les - use of images on the net would be a lovely feature article (for most us who are too lazy to do our own research) and can be a part of the Help Section - then the users (us) here cannot really have any excuse to copy and paste convenient photographs (which unfortunately I have done many times before during my initial days online). Of course Jeremy has provided the link to free photos on the web which I have bookmarked. My Xomba Page

Fossils and Life before Humans

How brief we are in the span of the history of the world aways amazes me. As a student of geology it is incredible to think of all the species that have gone before us and how long life has been on this planet, despite what the 6000 year religious fanatics believe. Join Xomba Get PAID to write Articles Like These Honest Online Income

I saw this mentioned on AOL,

I saw this mentioned on AOL, and I was pretty intrigued. It would have been exciting if this animal was related to cats, and dogs.

Training? why not state pic as "a public use image?"

IMAGE:This image I fattened, and copied from Xomba to this XOMBA comment, and THIS IMAGE,(even fattened a bit) is according to XOMBA a free-use, Wikipedia "commons" image. I think it is ubiquitous on the web by now, but it is only similar to the rendition in Science for Anne Gibbon's article forScienceNOW of 19 May 2009, whose image is Credit: HISTORY/Atlantic Productions. [Note: There ARE differences, the Science image has whiter bones so the bone structure is only more noticeably highlighted, kind of like the Halloween Skeletons white/on black background.] I noted the Gibbon's article and recommend readers view the comments accumulated there-under for some interesting reading from evolutionists and anti-evolutionists alike. . . and I think that site is actively "moderated," though it may get away from the moderators now and then. http://sciencenow.sciencemag.org/cgi/content/full/2009/519/1 Okay. If you are going to place this on the front page as a featured kind of article -- why not provide all the normal credits? Including Rachel, Sarah, or Kristen's or your moniker? Or ALL four? As well as a bona fide image credit? For training purposes. I admit I would have difficulty in citing or footnote-ing all the things I use or have ever read and re-formulated in my Xomba Science articles in putting together a 'readable' xombyte. [Albeit, some might claim a bit of my efforts are incomprehensible in any event and totally unreadable, though not all would find them difficult.] Anyway, take a read of the comments on the Science site and you might see similarities to comments on Xomba sometime back for this kind of flame-ant subject. (I have not commented on the Anne Gibbon's Article -- though I have been tempted to do so -- and the Science thread structure is interesting, with small type -- but I think it has been limited to 3500 text characters, since I did comment on another issue -- and also asked why they wanted images but not comprehensive comments, footnotes, and rigor. Interns And to your Interns: Beware of harsh treatment and criticisms from readers here on Xomba. Satire could be well done here and perhaps your skins be thickened. Satire is a feely-sensy-politically-correct-y lost art [Ask Jeremy about satire, and his conception of it.] For example, being sensitive and feely enough as a Xombie not to call really stoooopid people or comments stooopid, even when they ARE really stooopid, will slow reads and reduce some activities here in. From the BB days, good flames are great reading even if the stoopids are on both sides! [usually, but pretension of stooopidity is okay if the point is well made.][i could cite examples, but won't.] A good project would be to write an article on the use of "commons" images in postings, and if you look back at some postings you will find WIKIPEDIA credits down to the original image maker for a complete open reference which helps make a lesser case for internet copyright or plagiarism claims in defense of the publisher or blogger who distributes the image. [It covers your behind. Reduces your liability exposure. Kinda like the Craigslist Legal Shield.] If Antonia Dwells were still active, here -- you would be educated no matter what you wrote! [look her up, read her sharp witted sharp minded sharp tongued writing, and learn of economic verbal elegance.] In conclusion, I look forward to reading more Science-type articles from you, your TEAM, colleagues and collaborators, with credits (and consequent blame or responsibility in name applied to the work) aptly and appropriately assigned as well as even "Commons" image credits associated with the images proffered. Image: Wikipedia Commons, from NASA, one version of Martian Life! Let's Party! Only the studious amongst you, or the self-flagellant, remain.

Wiki Commons

The article was written by one of our new interns but I uploaded the image. I felt that images of Ida were all open to the public since it was part of the University of Oslo but I see your point that someone had to take the picture so I changed it to the public use image from the original image I had.

Kristen Malmed
Online Communications Specialist

So yeah. And the Credit for the Pic? I could have TV'd it but

I read Anne Gibbons report in [i]Science{/i] and was not really going to critique it or give any real comments as a layman or a qualified reviewer or from any primatologist/anthropologist viewpoint -- to the report or the situation. But as a writer, I can add something to Jeremy's(?) report here! And a bit of a critique, plus my hint of primate based humor-humor. Jeremy? I assume. Oh NO it's Nick! Did you read Anne Gibbon's report or one of the others? This is Anne's report. http://sciencenow.sciencemag.org/cgi/content/full/2009/519/1 I recommend a visit and if that link does not work since I have a membership, try this: www.sciencemag.org and search the article out in the news or free articles section. The critique? Yeah Nick. It is your cold? I do not think you took the picture, did you? I would like to see the image credit -- is it Wiki or somewhere else or is it yours? In any case, to make this a legit byte you need to cite your image source. You know the rules, hey? Now, I will only say that when I think about it and concentrate on my long missing tail -- I still "feel" a ghostlike echo in my brain of where that tail hooked up . . . and if you think about hooking your tail around something, you will know what I am saying. Really. Think of your tail bone and what it used to be. You can crimp/cramp your muscles and still feel the satisfying connection -- and look the remnants of that connection are still in your brain, but now relegated to just that muscle- tightening function. Come on! just tighten on your tail a bit and hang on. . . Fix the picture credit. [Can't you recall your tail "feel", you know, those muscles. . . you used to use together with others for security. . ?]

I watched

A lot of this episode on the History channel and was a little underwelmed. Yes the fossil is great and rare but just like the expert above said, so what. They had a very difficult time classifying it as either a monkey or a lemur and I don't think they were totally convinced by the end of the episode. From an evolution stand point it was interesting to see the development of certain features - no grooming claw and distinct lower front teeth but other than that was a bit lame. It is a good long way from the higher primates - chimps, apes and humans. To me Lucy is still the link between humans and the chimps and apes which is what I think of when I think of a missing link. Not the link between monkeys and lemurs. Visit my homepage here

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