Concern from scientists over potential danger to gas production facilities in region vital for energy supplies.
Tomsk State University scientists' invention can be deployed by police and security services in terrorist situations, also for rescues.
Eaten by an ancient cave lion or bear, only the tail was left, preserved by the Siberian permafrost.
At least five species of ancient animals will walk again in Siberia, predicts South Korean cloning expert.
Over 300 years old, the 'jetons' - used in lieu of coins or for counting - were found along with artifacts hoarded by the Northern Selkups.