The tundra biome is the coldest and one of the largest ecosystems on Earth. It covers about one-fifth of the land on the planet, primarily in the Arctic circle but also in Antarctica as well as a ...

Barren tundra lands, home to hardy flora and fauna, are one of the Earth's coldest, harshest biomes. Learn what threatens this fascinating ecosystem, and what you can do to help. 2:01 ...

“A lonely vigil in remote Alaska. . . . The tundra is outside of Bethel, Alaska. The day is chill. The sentiment is solid. Find your spot. Occupy it. Even if it is only your own mind. Keep this ...

Mosses once grew and insects crawled in what are now barren valleys in Antarctica, ... Ancient moss, insects found in frozen tundra of Antarctica News. Aug 5, 2008 - 12:00am.

The tundra is the coldest of all the biomes. ... The Antarctic has no polar bears, but it does have penguins. Back to top. Why do biomes like the rainforest matter? Image caption, ...