Black bears show surprisingly significant and previously unobserved slowing of their metabolism during and after hibernation.

Much of circumpolar Arctic research focuses on the physical, direct changes resulting from climate warming such as sea ice retreat and temperature increases.

Two University of the Alaska Fairbanks researchers are among key contributors to a new national report that details visible effects of climate change in the United States and how today's choices stand to affect the future.

Reindeer are a domesticated subspecies of caribou, generally shorter, rounder and less skittish than their wild cousins. However, scores of them have run off with the wild Western Arctic caribou herd.