Across the Russian polar regions, these eye-catching pictures show how thawing soil leads to territories being washed away.

One region alone - Yakutia - has 5 million tons scrap metal dumped in polar regions, an ugly Soviet legacy.

The unique discovery was three or four years old when it died at least 20,000 years ago.

Samples taken from cubs frozen in permafrost for at least 12,000 years.

In the most extreme conditions, the unimaginable can happen. 

New find in 'perfect condition' just two metres from 2011 discovery of 12,400 year old dog.

Brain of young female Yuka, preserved in permafrost for 39,000 years, is 'identical' to today's elephants, say scientists.

From frost-resistant woolly pigs to sheep that look like goats and horses that love playing the snow, there are lots of surprises across the taiga.

A huge operation to cull 3,000 wolves in Russia's largest region began today - 15 January - amid claims banned poisons could be used.

Renowned scientist says temperatures could 'rise twice faster' in Yakutia than the rest of the world.