Sixty-one thousand reindeer starved to death in the northwestern reaches of the Russian tundra in November 2013 in the largest recorded mortality event of its kind.

11-11-13 Weather effects caribou migration and season - Barrow, Alaska, USA

9-5-13 Caribou delayed - Kiana, Alaska, USA

Thawing permafrost and river bank collapsed on the Cheenik Creek.

When a scientist went to an uninhabited island in Nunavut to set up a research station he stumbled across something else: dozens of dead caribou.

It's not common to see animals of any kind, including moose, in the community of Pitkas Point.

4-22-13 wolf roaming city - Anchorage, Alaska, USA

4-21-13 Early brown bear - Pedro Bay, Alaska, USA

2-2-13 Many wolf sightings - Togiak, Alaska, USA

Black bears are not normally seen during this time of the year.

St. Marys residents concerned about possible interactions

1-17-13 Winter brown bear - St Marys, Alaska, USA

A rare sighting to observe a brown bear in January.