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The DNA of a frozen specimen was used to grow embryos

Australian scientists have successfully taken the first steps necessary for bringing back an extinct frog species.

The team, led by University of New South Wales paleontologist Mike Archer, has grown embryos with the revived DNA of the extinct gastric-brooding frog for the first time.

The gastric-brooding frogs were a genus of ground-dwelling frogs that were native to Queensland in eastern Australia. It was quite an extraordinary genus because it had the only two known frog species that incubated their offspring in the stomach.

However, the gastric-brooding frog became extinct in 1983.


Now, the research team has brought their DNA back to life. It did this by reviving frozen DNA samples of a gastric-brooding frog and inserting the genetic material into donor eggs. The donor eggs were those of a distant relative -- the great barred frog. But the great barred frog's DNA was deactivated by UV light.

As time went on, the cells began dividing, showing signs of growing embryos.

The embryos have not yet turned into tadpoles, but research shows that the dividing cells do, in fact, have the DNA of the extinct frog.

"We do expect to get this guy hopping again," Archer said.

While finding viable DNA and creating the frog embryos was no easy task, this opens the door to the possibility of bringing other extinct species back to life.

Source: smh.com.au



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RE: Hopefully they will be careful here
By MrBlastman on 3/19/2013 5:10:50 PM , Rating: 1
Until humankind figures out a way to get off this rock and expand into the cosmos, anything we do here or achieve is meaningless. We're no better than giant lizards with pea sized brains.


By MrBlastman on 3/20/2013 5:23:36 PM , Rating: 2
I'm perplexed how someone could rationalize that what we do here IS useful if we never manage to leave the Earth (and rated me down). Science has shown we are doomed if we remain on this planet. Either mankind will wipe itself out or a natural, celestial event will lend a hand. One or the other will happen. It is a matter of time.

If we never leave the rock, we'll perish and everything we do will be worthless.


“Then they pop up and say ‘Hello, surprise! Give us your money or we will shut you down!' Screw them. Seriously, screw them. You can quote me on that.” -- Newegg Chief Legal Officer Lee Cheng referencing patent trolls

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