Singing voles are found in tundra regions above the tree line.
It flows across desolate tundra regions into the Kara Sea.
Above 11,000 feet (3,400 m) is found the only alpine tundra region in Arizona.
These islands and the nearby coast are in the desolate tundra regions of Siberia.
The traditional livelihoods of the Pomors based on the sea included animal hunting, whaling and fishing; in tundra regions they practiced reindeer herding.
For example, some fish are expected to thrive in warmer northern waters, and treeless tundra regions could see more forest growth.
The arctic hare is distributed over the tundra regions of Greenland and the northernmost parts of Canada.
The males congregate on hilltops, screes and rocky places in tundra regions and the females fly to join them.
Farther north and west lie the tundra regions, primarily the result of elevation.
The extreme northeastern section lies within the tundra region, but it does not have permafrost.