Discovery of blood in creature frozen for 43,000 years is seen as major breakthrough by international team.
Fresh blood discovery by scientists in remains of extinct creature as experts start research this month in hunt for live cells.
Scientists remain confident of one day bringing back the beast to roam again in Siberia.
International team of scientists complete major DNA study of extinct beast and fuel hopes of producing clone to live in special park.
Experts give their macabre verdict on mummified remains after speculation a new type of dinosaur had been found.
12,000-year-old remains of puppy were discovered perfectly intact sealed inside permafrost.
New find in 'perfect condition' just two metres from 2011 discovery of 12,400 year old dog.
At least five species of ancient animals will walk again in Siberia, predicts South Korean cloning expert.
Scientists from Novosibirsk-based Vector are working in Yakutia on a paleo-virus experiment.
Project to be unveiled at 4th Eastern Economic Forum next month and likely to contain laboratories sunk into the permafrost.