Living and nonliving factors that influence the types of vegetation that grow at different elevations in the Arctic tundra also regulate the types of bacteria that grow in the soil. The distribution ...

A muskox stands amid Greenland's arctic tundra. Large herbivores have been found to play a critical role in maintaining tundra biodiversity. (Eric Post/UC Davis) Being common is rather unusual. It’s ...

Tundra plants can eek out an existence in the very short summers of the Canadian High Arctic such as here on Ellesmere Island, Nunavut. (Anne Bjorkman, University of Gothenburg) Rapid climate change ...

Two bull caribou of the Western Arctic Caribou Herd swimming across the Kobuk River during fall 2011 migration in Kobuk Valley National Park. The herd has been in decline since hitting its peak ...

Add Yahoo as a preferred source to see more of our stories on Google. Green summer tundra and the rolling Mulgrave Hills in northwestern Alaska's Cape Krusenstern National Monument are seen on July 11 ...