One vast hole appearing in Siberia's frozen ground is a head-scratcher; 20 of them exploding through more than 500 feet of ...

The shaggy giants that roamed northern Siberia during the late Pleistocene epoch died off about 10,000 years ago, though isolated populations lingered on islands to the north and east, the last ...

northern Scandinavia and northern Siberia." "If you're further out of that zone, so in Scotland, say, it takes a bit more elevated solar activity to bring that ring down." "It's difficult to ...