However, there is a lot of variability in desert types, with hot deserts, cold deserts ... and low-growing perennial shrubs. The tundra biome contains only about 3% of the world’s flora.

The tundra biome is the coldest biome on Earth. They receive very little rainfall, even less than a desert. However, the tundra is a rather wet place. How is this so? See the video to learn more.

Save guides, add subjects and pick up where you left off with your BBC account. The coldest places on Earth are found at, or close to, the North and South Pole. Mountainous areas are also very cold.

Fascinated by the unique, divergent paths of the two populations of tundra swans, Ely and others studied which group, ...

cold winter, leading to a decline in wildlife activity and the migration of many species. Keywords tundra, biome, climate, wildlife, muskox, arctic fox, permafrost, seasonal changes, migration ...