A polar bear   outside Churchill, Manitoba: experts at NUI Maynooth and Dublin City University analysed the genomes of 70 polar bears to find out what  allows them to be so  fat yet completely healthy. Photograph: AFP Photo/Paul J Richards

When it comes to weight gain, nothing tops the polar bear. Yet the very fact that it remains fit and healthy despite half its entire bulk being pure f(...)

Land arctic

The Arctic – Living at the Top of the World, in which Charlie Bird reports from Canada’s extreme north for The Irish Times , will run for 30 days i(...)

A computer generated image of a woolly mammoth emerging from an ice block. The discovery of a well preserved mammoth carcass has raised hopes the long extinct animal could be cloned.  Photograph: ExhibitEase LLC/Steven W. Marcus/PA Wire.

Russian researchers say they have discovered a perfectly preserved woolly mammoth carcass with liquid blood on a remote Arctic island, fuelling hopes (...)

Handout photo of Gary Thornton, winning the UVU 2013 North Pole Marathon.  Photograph: Mike King/PA Wire

A Galway-based runner has won a marathon at the North Pole. Gary Thornton (33), a national school teacher who runs with the Galway City (...)