Day of the mammoth gets closer
Scientists have found well preserved woolly mammoth remains in a remote part of Russia and hope they contain the genetic material they would need to resurrect the long-extinct beast.
The Russian-led international team found the remains, including fur and bone marrow, both with some cell nuclei intact, in the Yakutia region on Russia's Arctic coast.
The next step will be to search for living cells among the material, which was preserved in the Siberian permafrost, said the Russian scientist who led the expedition with members from the US, Canada, South Korea, Sweden and Great Britain.
"All we need for cloning is one living cell, which means it can reproduce autonomously. Then it will be no problem for us to multiply them until we have tens of thousands of cells," said Semyon Grigoryev, a professor at North-East Federal University.
However, media reports that the scientists were close to making a "Jurassic Park"-style breakthrough by bringing the giant mammal back to life after thousands of years of extinction were exaggerated.
"We are counting on our region's permafrost to have kept some cells alive, but it is unlikely," said Grigoryev, pointing out that the remains would have to have been at a stable temperature of between -20C and -4C for any cells to remain alive.
Some media had reported that living cells had been discovered but Grigoryev said that had been due to a translation error: the word "intact" had been translated from English into Russian as "living".
"What we have found are intact cells, with a whole nucleus," he said.
The Yana expedition found the remains last week at a depth of 5m to 6m in a tunnel dug by locals searching for rare and valuable mammoth bone.
A previous find in the same region two years ago yielded the remains of a 40000-year-old female baby woolly mammoth, named Yuka by scientists, as well as those of an ancient bison and horse. Those finds lacked living cells.
To determine whether the cells are living, they will be examined by a South Korean scientist, Hwang Woo Suk, whose Sooam Biotech has done several animal clonings, including the world's first commercial cloning of a dog.
Scientists have made several attempts to revive mammoths using cells salvaged from preserved remains since the 1990s but none of them has been successful.