When Cyrus Harris first saw a beaver during a camping trip in the tundra territory in the far northwest of Alaska in 1988, the discovery created a stir in his hometown of Kotzebue. “That made big news ...

Reindeer are a species of deer also known as caribou in certain regions. They are found in the Arctic tundra and boreal forests. Finland is home to a small population of woodland reindeer. Following a ...

Beavers are taking over the Alaskan tundra, completely transforming its waterways, and accelerating climate change in the Arctic. The changes are so sudden and drastic that they're clearly visible ...

Snowy owls that once glided across wide open spaces of the Arctic tundra are seeing their homes shrink under thickening shrubs. They face a gauntlet of other threats, all of which decimate their ...

Add Yahoo as a preferred source to see more of our stories on Google. A leap and a plunge into the snow could earn this arctic fox its supper. Jupiterimages/PHOTOS ...

A new study highlights the importance of caribou and muskoxen to the greening Arctic tundra, linking grazing with plant phenology and abundance in the Arctic tundra. The story of Arctic greening has ...

Caribou have been using the same Arctic calving grounds for more than 3,000 years. Female caribou shed their antlers within days of giving birth, leaving behind a record of their annual travels across ...

A polar bear rests in a field on Barter Island in 2016. Polar bears in the Southern Beaufort Sea population are spending more time on land as sea ice diminishes, and studies indicate that they are ...

Foreboding environmental milestones abounded again this year in the Arctic, where experts say dramatic climate shifts are fundamentally altering the ecosystem and how it operates. One recent turning ...