As lichen has disappeared, the herd has changed its diet. This adaptation could have global implications for reindeer facing a warming climate.

The Yukon Fish and Game Association executive director believes it's just a matter of time before a disease outbreak, such as pneumonia, could spread from domestic sheep to wild Dall sheep.

The average weight of adult reindeer on Svalbard, north of Norway, has fallen to 106 pounds from 121 pounds in the 1990s

Pussy willows (Salix scouleriana) - a sign of spring in Interior Alaska.

The lynx population is up this year in Kivalina

B.C.'s wild bighorn sheep are facing a deadly threat from a pneumonia-causing bacterial disease

A bighorn sheep herd in B.C.’s interior is in trouble after coming into contact with domestic sheep and the contagious disease they carry.

Black bear (Ursus americanus) sighted during a rather warm winter this year.

1-23-14 Coyote sighting - Shaktoolik, 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.