Locals hear 'booms from the underworld' in giant ravine but now scientists say it holds secrets of the planet's past.
A dozen out of the 15 teams finished the race which began three weeks ago.
More than 20 calves born although park keepers say there could be more.
Experts to visit remote craters to solve the puzzle on their creation.
Andrey Solovyev keeps a lonely all-winter vigil in Yakutia in search of the legendary Labynkyr Devil.
Floodwater from Ob River is black from spill as emergency workers flight to limit damage.
Pipes are built over bulging and unstable Arctic pingos prone to violent eruptions caused by 'thawing methane gas', as seen twice on the Yamal peninsula this year.
Preserved by ice, the 25 year old ancient woman covered in tattoos used cannabis to cope with her ravaging illness.