Reindeer herders find more craters in the far north in a deepening puzzle for scientists. 

In each case the deadly decades-old 'zombie' disease originated in contaminated soil and was awakened by hot Arctic summer weather.

Experts to visit remote craters to solve the puzzle on their creation.

One-year-old bird has become a minor celebrity and attracts hundreds of visitors a week and even has its own Facebook page.

200 metres wide thermocirque seen weeks after scientists find funnel in the Yamal peninsula, caused by build up of methane.

Emaciated animal walked 1500km south and away from Arctic Ocean, searching for food.

'Second Spring' arrives with rhododendron blossoming for rare encore in October.

Bulging bumps in the Yamal and Gydan peninsulas believed to be caused by thawing permafrost releasing methane.

Running water is one of the most soothing and relaxing sounds known to man, but here it signals the rapid thawing of ground frozen for thousands of years.

Plan for surrogate mare to give birth and bring back to life long-gone species in Russia’s coldest region.