Today in Russia’s Arctic the search is on for ... slogging 18 hours a day over the icy tundra. He is cold and exhausted, with a hunger so primal that he has been reduced to eating seagulls.

They are the only freshwater seals in the world and have adapted to the lake's cold, clear waters ... rodent that inhabits ...

They include polar, tundra and mountain, or alpine, biomes. Cold environments face challenges ... are opening in the Yamal Peninsula, northern Russia. They could provide enough gas to heat a ...

An curved arrow pointing right. Eight thousand troops perform military exercises like hauling artillery, deploying attack helicopters, and parachuting into Alaska's Arctic tundra. Here's a closer ...