Unveiled: two extinct cave lions  - dug from the permafrost - make their first appearance since Pleistocene times.

'I cry and say thank you to the Russians that they welcomed us so warmly'.

Diamonds of Yakutia found a fake gem - and the real $107,000 jewel vanished. 

Latest survivors give harrowing accounts of how they feared they would drown in underground tidal wave.

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.

Discovery of blood in creature frozen for 43,000 years is seen as major breakthrough by international team.

Some regions parched, others underwater in latest meteorological surprises.

Winter comes to summer including freak hailstorms, mega-flooding but also wild fires.