The mummified remains of an ancient puppy could be used to bring its species back from the dead after being frozen in time for almost 12,500 years.

Experts have thawed the animal, ahead of a full and official post mortem, to discover its brain is still surprisingly 'well preserved.'

It is believed to be part of the same litter as the original Tumat Dog found in 2011 and experts are examining whether the animal was a pet.

Controversial cloning guru Hwang Woo-suk has also taken samples from the remains in a bid to bring the extinct species back to life.

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The mummified remains (pictured) of an ancient puppy could be used to bring its species back from the dead after being frozen in time for 12,400 years. Experts have thawed the animal, ahead of a full and official post mortem, to discover its brain is still surprisingly 'well preserved'

The mummified remains were found on a steep bank of River Syalakh.

Details, including its teeth and fur, have been revealed in a video that shows mud and dirt from a dozen millennia being washed off the frozen puppy.

The Siberian Times reports that the post mortem on the animal will take place in Yakutsk, capital of Russia's Sakha Republic.

Russian expert Dr Pavel Nikolsky, research fellow of the Geological Institute, Moscow, said: 'The carcass is preserved very well.

'And one of the most important things is that the brain is preserved.

Details, including its teeth and fur, have been revealed in a video that shows mud and dirt from a dozen millennia being washed off the frozen puppy. Russian expert Dr Pavel Nikolsky said: 'The carcass is preserved very well and one of the most important things is that the brain is preserved'

The degree of preservation is said to be around 70 to 80 per cent, although the experts will be able to be more specific after the animal is fully extracted. Although it has dried out, both the parencephalon, cerebellum and pituitary gland are visible. In this image, the dog's teeth are exposed

THE TUMAT LITTER OF DOGS The mummified remains were found on a steep bank of River Syalakh. Details, including the puppy's teeth and fur, have been revealed in a video that shows mud and dirt from a dozen millennia being washed off the frozen puppy. A suspected sibling of this puppy was pulled from the same location near the village of Tumat four years earlier - in 2011 - dubbed Tumat Dog. Experts believe the creatures could be from the same litter and probably died in a landslide or burrow collapse in the Ust-Yansky district of northern Russia's Sakha Republic. In particular, the dimensions of the discoveries in 2011 and 2015 and their location in Tumat village indicate both puppies may belong to the same litter. They were found two metres away from each other, although the 2015 puppy is better preserved than the 2011 one, said experts. Advertisement

'The degree of preservation is about 70 to 80 per cent.

'We will be able to say more precisely after it is extracted. For now we can see it on MRI scans.

'Of course, it has dried out somewhat, but the both parencephalon, cerebellum and pituitary gland are visible.

'We can say that this is the first time we have obtained the brain of a Pleistocene canid.'

It is the first intact brain of a predator from this era, he said.

A suspected sibling of this puppy was pulled from the same location near the village of Tumat four years earlier - in 2011 - dubbed Tumat Dog.

Experts believe the creatures could be from the same litter and probably died in a landslide or burrow collapse in the Ust-Yansky district of northern Russia's Sakha Republic.

Scientists spent four years studying and DNA-testing the remains, which were kept in a freezer, and it was in April that a post-mortem on the original dog was eventually carried out.

The body was found in Tumat village by villagers Yuri and Igor Gorokhov and Ayaan Tomsk who donated it to the mammoth museum.

Sergey Fedorov, the head of the exhibition department of the Museum of the Mammoth, said: 'The remains were brought to Yakutsk for our museum.

Controversial South Korean cloning guru Hwang Woo-suk (pictured centre) has taken samples in a bid to bring the extinct species back to life. He said he was 'satisfied with the degree of preservation'. The South Korean is also working on bringing the extinct woolly mammoth back to life

The mummified remains were found by scientists close to the Syallakh River in the Ust-Yana region (shown)

'The dimensions of the discoveries in 2011 and 2015 and their location in Tumat village indicate that both puppies may belong to the same litter.

'They were found two metres away from each other.

'This puppy is better preserved than the previous one, so we hope to get more new information.'

Cloning specialist Professor Hwang Woo-suk said he was 'satisfied with the degree of preservation' on the more recent discovery and said he was 'very excited'.

He took the samples from the skin, muscles and ear cartilage.

A suspected sibling of the puppy was pulled from the same location near the village of Tumat four years earlier - in 2011 - dubbed Tumat Dog (pictured). It has since been subject to a post-mortem examination which revealed the litter may have been killed during a landslide

The dimensions of the discoveries in 2011 and 2015 and their location in Tumat village indicate both puppies may belong to the same litter. They were found two metres away from each other, although the 2015 puppy (pictured) is better preserved than the previous one, said experts

Professor Darima Garmaeva, of the Institute of Medicine, said in June: 'What is of real interest is the fact the [Tumat dog] has a completely preserved carcass, which is unique by itself, with nothing like it in the world. Although the tissues are mummified, they have no post-mortem decomposition'

The South Korean is also working on bringing the extinct woolly mammoth back to life.

'Later we will compare them with the bacteria from the puppy's intestines. We hope to find ancient bacteria among them,' the cloning specialist said.

A search is underway for 'parasites - ticks, fleas' on the prehistoric dog.

Examination of the earlier puppy found at the site suggests it was a dog rather than a wolf.