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Old March 16th, 2013, 07:48 PM   #1
CanadianDemon
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Scientists Resurrect Bonkers Extinct Frog That Gives Birth Through Its Mouth

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In 1983, the world lost one of its weirdest frogs. The gastric-brooding frog, native to tiny portions of Queensland, Australia, gave birth through its mouth, the only frog to do so (in fact, very few other animals in the entire animal kingdom do this--it's mostly this frog and a few fish). It succumbed to extinction due to mostly non-human-related causes--parasites, loss of habitat, invasive weeds, a particular kind of fungus. There were two subspecies, the northern and souther gastric-brooding frog, and they both became extinct in the mid-80s sometime.
Except--what if they didn't?
Taking place at the University of Newcastle, the quest to revive the gastric-brooding frog became known as the Lazarus Project. Using somatic-cell nuclear transfer (SCNT), a method for cloning, the project has achieved the major step forward of creating an early embryo of the extinct frog. Essentially, they found a related frog--the great barred frog, which also lives in Queensland and has cool eye markings, like it's wearing sunglasses--deactivated its eggs, and replaced them with eggs taken from the extinct frog.
Even though the gastric-brooding frog has been extinct for decades, it's possible to do this because individual specimens were kept preserved in, believe it or not, everyday deep freezers. When going through somatic-cell nuclear transfer, the eggs began to divide and form into the early embryo stage.
The embryos didn't survive much longer than that, but it was confirmed that these embryos contain genetic information from the gastric-brooding frog--that yes, in fact, they have brought it back to life. The researchers are confident that this is a "technical, not biological" problem at this stage to breed gastric-brooding frogs to adulthood. This is a big step forward for the worldwide attempts to revive extinct animals--the Lazarus Project researchers will soon meet with those working to revive the woolly mammoth, dodo, and other extinct beasties to share what they've learned.
Oh, and in case you were wondering: the gastric-brooding frog lays eggs, which are coated in a substance called prostaglandin. This substance causes the frog to stop producing gastric acid in its stomach, thus making the frog's stomach a very nice place for eggs to be. So the frog swallows the eggs, incubates them in her gut, and when they hatch, the baby frogs crawl out her mouth. How delightfully weird!
Read more: http://www.popsci.com/science/articl...ough-its-mouth
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Old March 26th, 2013, 03:14 PM   #2
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Revival of Extinct Animals

There is a lot of discussion going on lately about serious proposals to revive some extinct animals.

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Scientists want to raise extinct species from the dead


We can rebuild them. We have the technology.

It's called "de-extinction": the notion that we can revive extinct species that for some reason or another — usually human intervention — have disappeared from the world. Twenty years ago, the idea hit the mainstream when Michael Crichton's Jurassic Park was made into a film; 10 years ago, the first extinct animal was resurrected, a clone of a Pyrenean Ibex. Revived by scientists at the Centre of Food Technology and Research of Aragon, Zaragoza, in northern Spain, and the National Research Institute of Agriculture and Food, Madrid, Spain, the hapless creature was a victim of crude technology, expiring just moments after birth.

But over the years, cloning technology has grown more precise, to the point where at least one program is underway to clone endangered animals — a move that could have a number of benefits, including increasing the population overall, and allowing researchers to leave wild animals undisturbed in their natural habitats.

...
more: http://www.cnet.com.au/scientists-wa...-339343778.htm


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Say We Really Do Bring the Passenger Pigeon Back From Extinction — Then What?

Synthetic biology has made such strides in recent years that the notion of reviving extinct species is no longer crazy talk. Researchers gathered recently in Washington, D.C. to discuss the prospects of bringing back a whole menagerie of fascinating creatures, including the passenger pigeon, once the most numerous bird in North America.

The plan to bring back this iconic bird, which has been extinct for nearly a century, will push the bounds of genetic engineering. But let’s just say for now that the technical challenges are surmountable. If researchers actually do create a genetic replica of a passenger pigeon, what should they do with it?

...

more: http://www.wired.com/wiredscience/20...ons-then-what/
This website focusses on bring back some specific animals: http://longnow.org/revive/





How far should we go? Everything if possible? The only thing om worried about is if these animals get into the wild, other than that I'm very excited to see some extinct species beging brought back to life!
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Old April 21st, 2013, 04:54 PM   #3
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What are the benefits of cloning extinct animals? Commercial exploitation? To increase food supply diversity? Or is it just for fun?
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Old April 21st, 2013, 05:13 PM   #4
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We're god nor mother nature, so:
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Old April 22nd, 2013, 09:48 AM   #5
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What are the benefits of cloning extinct animals? Commercial exploitation? To increase food supply diversity? Or is it just for fun?
Just for fun. Well not really. It would advance our knowledge in genetics in the process of making this possible. Beyond that, it is just interesting. I'm all for it. The Russians have already set up a special nature reserve called Pleistocene Park for it, and are already working on reviving the wooly mammoth, along with a few other tundra animals, and they actually have good reasons for doing it. Read the wiki article about it if you want to know more.

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Old April 22nd, 2013, 03:30 PM   #6
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there was a recent TED talk on the subject, it is really coming around, which is amazing

why do it? are you seriously asking the question???

for one, we will learn so much about how genes work
we will also be able to repair the damage we have done as a species to the biodiversity of this planet
and just imagine the zoos!
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Old April 23rd, 2013, 06:38 PM   #7
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Mankind and unfortunate events have killed off so many species - the more we can bring back the better IMO

Here in little Denmark we really made a mess of nature - killed all the animals and chopped down all the trees - now we are doing the best to amend the damage by creating a lot more woodland and reintroducing animals that were native here ( beavers, bison, boar ect ) and as a result some have come back by themselves such as wolves

With long extict animals there of course have to be a level of control and tests, but I say go for it - we got plenty of islands they can release them on and so a lot of other places..

I truly hope to get to visit a "Jurassic Park" in my lifetime, chances are of outse small due to the destruction of DNA doing the fossilization process, but sabertooth tigers, giant sloth, various huge terror birds and mammoth is great too
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Old April 24th, 2013, 12:40 AM   #8
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If extinct within 500 years, then yeah, it is possible. If longer, then I highly doubt it. Need undenatured DNA before any "revival" or cloning can be done.
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Old April 24th, 2013, 05:23 AM   #9
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I say certainly start with animals that have become extinct in our time, or due to human activity. That should keep some of the naysayers at bay initially!

They always say we should not interfere with nature and all these really close minded objections - but in the case where we destroyed the animals, surely we should make that right if we can?

Once we have won that argument and brought back things like the Qwagga, then we can go nuts and bring back the Mammoth and Pachycephalosauros, and the naysayers wont know what has hit them
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Old April 26th, 2013, 06:34 PM   #10
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Please revive dinosaurs. I know a few people Id like to send them to.

Im all for this project. Let humanity become godlike. It is our destiny.
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Old April 27th, 2013, 12:38 AM   #11
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Over ONE HUNDRED MILLION sharks are killed each year by humans, 11,000 sharks every hour of every day.

Many species of the oldest predator on this planet will be extinct in less than 50 years at this rate. They will never be here again.

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Old April 28th, 2013, 03:12 AM   #12
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Originally Posted by Khaleejian View Post
Please revive dinosaurs. I know a few people Id like to send them to.

Im all for this project. Let humanity become godlike. It is our destiny.
Maybe one day we can also revive some sanity in your skull.
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Old April 28th, 2013, 10:44 PM   #13
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Maybe one day we can also revive some sanity in your skull.
for a person whose location is in "mrs gaga", the only sanity that needs questioning is yours
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Old April 29th, 2013, 01:01 AM   #14
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Why tamper with evolution? If some species did not survive, they likely won't survive for long even when reintroduced into nature, unless the public is willing to spend a fortune to keep them alive. I think the best we can do is to try and keep endangered species from going extinct. That seems to be quite an expensive task in and of itself.
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Old April 29th, 2013, 08:49 AM   #15
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Originally Posted by koolio View Post
Why tamper with evolution? If some species did not survive, they likely won't survive for long even when reintroduced into nature, unless the public is willing to spend a fortune to keep them alive. I think the best we can do is to try and keep endangered species from going extinct. That seems to be quite an expensive task in and of itself.
That is NOT how evolution works. One can't TAMPER with evolution. Plus, the purpose for bringing these animals back has nothing to do with evolution.
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Old April 29th, 2013, 10:22 AM   #16
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Actually it happened, a group of scientists did that but the poor animal went extinct again in 8 minutes lol.
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By Carl Zimmer
Photograph by Robb Kendrick
On July 30, 2003, a team of Spanish and French scientists reversed time. They brought an animal back from extinction
Read more:
http://ngm.nationalgeographic.com/20...al/zimmer-text
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Old April 30th, 2013, 05:22 AM   #17
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Neither you or I walked on our first try. This is why this will become important research in better understanding genes and reproduction. After many false starts once we finally succeed we will have advanced our knowledge a great deal.
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Old April 30th, 2013, 10:45 AM   #18
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Quote:
Originally Posted by koolio View Post
Why tamper with evolution? If some species did not survive, they likely won't survive for long even when reintroduced into nature, unless the public is willing to spend a fortune to keep them alive. I think the best we can do is to try and keep endangered species from going extinct. That seems to be quite an expensive task in and of itself.
Probably will just keep revived species in zoos and labs. It wouldn't be feasible to reintroduce them back in to the ecosystem, and anyone thinking to the contrary is just being zealously optimistic just like the majority on this subforum.
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Old April 30th, 2013, 10:47 AM   #19
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Quote:
Originally Posted by Khaleejian View Post
for a person whose location is in "mrs gaga", the only sanity that needs questioning is yours
What is "mrs gaga"? Can't blame you for your ignorance... or maybe I can.

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Old April 30th, 2013, 01:16 PM   #20
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Quote:
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Neither you or I walked on our first try. This is why this will become important research in better understanding genes and reproduction. After many false starts once we finally succeed we will have advanced our knowledge a great deal.
But that experiment is 10 years old, makes me lose hope in seeing the mammoth or that Australian marsupial dog-like during my lifetime
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