A team of paleontologists claim to have found tissues in mammoth remains in the Far East that could be used to clone the mammal.
However, not everyone in the scientific community is so readily willing to accept the news as fact. Some say they doubt living cells had been found, and question why such a significant discovery had not been announced in a scientific journal.
An international expedition called Yana-2012 found soft tissue, fatty tissue, fur and bone marrow of mammoths, said expedition leader and Northeast Federal University researcher Semyon Grigoryev on Friday.
An unidentified member of the expedition team said that findings from the expedition would be published in authoritative scientific journals.
Mammoths went extinct about 4,500 years ago, and their remains are occasionally found in the permafrost of Russia's northernmost regions.
Earlier this year a team of Russian scientists conducted a groundbreaking experiment in which they were able to produce an entire plant from fruit tissues found in the permafrost. The researchers said that the experiment opened the door to the resurrection of other ancient species.