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Bits of Tassie Tiger Brought Back from Extinction

zerobeat writes "Scientists from Melbourne, Australia have managed to resurrect the gene responsible for the development of cartilage and bone from the now extinct Tasmanian Tiger. The gene was expressed in a mouse embryo so the full reincarnation of a full Tassie Tiger is a long way off. You can listen to an MP3 of ABC Australia's Robyn Williams discussing the results with the lead scientists. This is the first time DNA from an extinct species has been made to live again in a live animal."

25 of 197 comments (clear)

  1. Brings to mind Jurassic Park by CRCulver · · Score: 4, Interesting

    In Michael Crichton's Jurassic Park , the dinosaur DNA extracted from the stomachs of mosquitos trapped in amber is incomplete as well, but by combining it with the DNA of modern reptiles, a decent simalcrum of a dinosaur could be had. Does this Tasmanian tiger development vindicate (at least the less out there elements of) Crichton's plot?

    1. Re:Brings to mind Jurassic Park by dreamchaser · · Score: 3, Insightful

      Probably not, but it makes for interesting thought experiments. I would not use reptiles though. Birds are probably far closer genetically to dinosaurs than any living reptiles are today. Some might even say that dinosaurs didn't really die off; they evolved into birds and lived on in that manner.

    2. Re:Brings to mind Jurassic Park by morgan_greywolf · · Score: 5, Insightful

      Does this Tasmanian tiger development vindicate (at least the less out there elements of) Crichton's plot?
      In a word: No. Grabbing one gene from an extinct species is very different than grabbing most of the entire genome is. Plus, the Tasmanian Tiger is far more-recently-extinct than dinosaurs, so the DNA is, without a doubt, much, much newer. (DNA degrades significantly over time.)
    3. Re:Brings to mind Jurassic Park by houghi · · Score: 5, Funny

      Well, the tiger DNA is only 70 years old. The Dino DNA is 6000 years old.
      There, corrected it for you. ;-)

      --
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    4. Re:Brings to mind Jurassic Park by pleappleappleap · · Score: 3, Insightful

      Who says they didn't? Do you speak dinosaur?

    5. Re:Brings to mind Jurassic Park by Anonymous Coward · · Score: 3, Interesting

      It should be noted as well, that when it was apparent the Tasmanian Tiger would become extinct, they started to preserve the remains in alcohol rather than formaldehyde. Alcohol does not damage DNA the way formaldehyde does.

    6. Re:Brings to mind Jurassic Park by Reece400 · · Score: 3, Funny

      Pfft, We all know that dinosaurs never actually existed. The bones were put there to test you....

    7. Re:Brings to mind Jurassic Park by Skippy_kangaroo · · Score: 3, Insightful

      I think you are indulging in a bit of creative reinterpretation of history:

      1933 Last wild Thylacine captured
      1936 Last Thylacine in captivity dies
      1936 Thylacine added to list of protected wildlife
      1953 DNA discovered

      Given that DNA and its chemical structure was unknown in the 1930s - when it really mattered - they could not have been choosing to use alcohol because it did not degrade DNA. Interesting story but no banana.

  2. A unix system! by Lord+Ender · · Score: 3, Funny

    I know this!

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    1. Re:A unix system! by Major+Blud · · Score: 3, Informative

      Um, no. The system was actually running SGI 3D Navigator. Check out the Wikipedia entry on SGI.

      http://en.wikipedia.org/wiki/Silicon_Graphics

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  3. Re:Eeek! by $RANDOMLUSER · · Score: 4, Funny

    our new tasmanian mouse overlords.
    So, would that be the mouse that roared?
    --
    No folly is more costly than the folly of intolerant idealism. - Winston Churchill
  4. And all will be just fine... by tekiegreg · · Score: 3, Funny

    until some renegade security geek disables the electric fence, and T-Rex's start eating attorneys everywhere...

    oh wait...let 'em run free then

    --
    ...in bed
  5. Re:First Save the ones on the verge of extinction by gardyloo · · Score: 4, Funny

    Why do you hate America?!?

  6. Re:Why? by Jellybob · · Score: 3, Insightful

    The panda is an excellent example. They just weren't made to survive.

    They need to eat constantly, because they get hardly any benefit from eating bamboo shoots, which they are unable to digest properly.

    But they're too damn picky to eat anything but bamboo.

    Anything that isn't willing to eat food capable of keeping it alive reliably deserves to die out, no matter how cute and cuddly it is.

  7. Re:First Save the ones on the verge of extinction by thermian · · Score: 5, Insightful

    Reality check here, they aren't trying to create a means to save animals that go extinct. It wouldn't work anyway, because many creatures require habitat that dissapears, That being what makes them go extinct in the first place.

    Few animals go extinct in a way that means they could be realistically revived. A shame, but true, so that would be a losing strategy.

    Lets look at a recent example, the baiji dolphin. It is now functionally, if not totally, extinct, and a major part of the cause was the fact that their habitat is no longer what it used to be, i.e a vast, silty, *quiet* river. Now it's a vast, crowded, polluted river.
    Hunting was a problem too, but wouldn't have been had not the environment changed so much (meaning if there were less humans utilizing the river). They've been hunted for thousands of years and only became endangered after the wide scale industrialization of the Yangtze River.

    Same for the woolly mammoth. As interesting and challenging as the recreation of that species is (and possible too, there are still frozen mammoths being excavated with intact testicles). The big problem is that they are huge creates whose habitat is long gone. Where would they go if we made them again?

    The Tasmanian Tiger is a special case, being rendered extinct fairly recently, and having it's habitat still almost entirely intact.

    As for saving the animals in the first place, got a few trillion dollers to pay off the poverty line hugging people that are being paid pennies to actually go out and cut down habitats to make rich people richer? Cos I haven't.

    --
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  8. You're toying with powerful forces here by seandiggity · · Score: 5, Funny
    --
    Geeks like to think that they can ignore politics, you can leave politics alone, but politics won't leave you alone.-rms
  9. Tassie Tiger = next Ubuntu? by smooth+wombat · · Score: 4, Funny

    With all the oddball names the folks at Ubuntu use, my first thought was they had named their next release and had kept in code that was on the chopping block.

    Imagine my surprise. . .

    --
    We will bankrupt ourselves in the vain search for absolute security. -- Dwight D. Eisenhower
  10. Re:Eeek! by arivanov · · Score: 3, Informative

    In that case why don't they bloody bring something useful like the Steller Cow. While trying to bring back the some of the native Australian species is a great achievement none of them would have the direct economic impact of having a sustainable see grazer capable of living in cold water.

    --
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  11. Re:First Save the ones on the verge of extinction by PeterChenoweth · · Score: 4, Funny

    Agreed. There's only two things I hate in this world. People who are intolerant of other people's cultures and the Dutch.

  12. Re:Why? by penguin_dance · · Score: 3, Interesting

    Well, it would depend on WHY the species dwindled down to ~100. Was it because of natural selection or because man hunted them down to extinction. The latter was certainly the case with the American Bison and with the ongoing of whaling. And there is a case that, in a large part, man caused the Thylacine demise.

    You might be able to use distant relatives to eventually create some sort of Thylacine cross. However the Thylacine is not related to either tigers or wolves though it went by the name Tasmanian Tiger or Wolf--it is closer in relation to the Tasmanian Devil. I can't think of why you want to rekindle another, LARGER carnivorous creature with a nasty temper.

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  13. Re:Why? by D-Cypell · · Score: 3, Funny

    I get as sentimental about the poor as the next guy

    Oopsies! That was supposed to read as "I get as sentimental about the poor [insert favoured endangered species here] as the next guy", except I used greater than and less than symbols in the original which was obviously filtered by the slashcode. For the record, I am, *in no way*, suggesting that we hunt the poor to extinction ;o).

  14. Re:Why? by SpinyNorman · · Score: 3, Insightful

    The individual species (esp. large cuddly ones like Pandas) may be the poster children of species preservation, but really it's more a matter of habitat preservation and ecosystem preservation in general rather than whether any one given species makes a difference. Would it really matter if the Bamboo forests in Japan all disappeared and the Pandas with them? ... maybe not in terms of Pandas and Bamboo, but who knows what the knock-on or unexpected effects of losing that would be, or of losing a large percentage of the amazonian jungle, etc. Do we care if global temperatures rise by a few degrees due to deforestatation or greenhouse gases? Maybe not on the level of temperatures, but what if that caused global fish stocks to crash, or fresh water supplies to disappear?

    As far as the "poster children", I think there is still good reason to preserve them for their own sake. See how interested people are now in the Tasmanian Tiger which isn't even that different looking to other extant species... Don't you think it'd be a shame if the next generation of children grow up in a world where large species like Pandas, Rhinos, Elephants, Gorillas etc only exist as stuffed specimens in museums? In fact I'm sure we've already all but irrecoverably ensured the demise of that particular group. We're essentially at the stage where the Tasmanian Tiger was only known from a few examples in zoos and rumored sightings in the wild, until eventually all the zoo specimens had died too.

    We're currently in the middle of what is probably the largest and quickest de-speciation "extinction event" the planet has ever known - something that makes the Permian extinction look like a non-event. From the timescale perspective of millions (or tens/hundreds of millions) of years this will only be an intersting point way back in history that our descendents (if our genetic lineagee survives that long) may ponder about, but on the human timescale of our own lifetime, and that of our children and grandchildren, it sure seems a shame to be taking such a giant shit in our own back yard.

  15. Don't believe the Wiki! by Lucid_Loki · · Score: 3, Informative
    Only nuts say they've seen one. I think last reported 'sighting' was c. 1970s. Various expeditions have turned up nothing.

    Southwest Tasmania though is home to one of the largest protected wilderness sites on Earth and it's possible that a small population has survived. Highly doubtful though.

    If we brought some back there would theoretically be an ecosystem for them. However that ecosystem has evolved 80 years without them. Reintroduction could be very harmful.

    A nice oddity in a large zoo enclosure and a triumph for marsupial DNA manipulation. That's about all you'd get from this.
  16. Re:First Save the ones on the verge of extinction by element-o.p. · · Score: 3, Funny

    Fill in the missing parts of the genome with Chiuaua DNA. I bet they'd make very popular house pets.
    Oh @#$%@!!! no!

    The last thing I want is a house pet that sheds a wool blanket twice a year, has tusks that are nearly equal its body length and has the disposition of a Chihuahua.
    --
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  17. Re:Why are we even defending large predators? by ChrisMaple · · Score: 4, Interesting

    Because its time for a little bit of thinning of the heard.
    Politicians, actors, newscasters and talk show hosts are the most heard. Splendid idea.
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