Natural history documentary series, written and presented by David Attenborough, looking at the ecology of the Earth in its present day form. A different ecological region of the earth is explored in each programme, and reveals the way in which fauna and flora have adapted to cope with the extremes of their environment.

From the Arctic to the southern United States stretches the largest forest in the world. David Attenborough roams from north to south through this spectacular woodland, starting amid conifers high in the Arctic Circle and ending among the giant sequoia trees of the Sierra Nevada. Among the wildlife he encounters are huge great grey owls, sapsucker woodpeckers, hummingbirds, raccoons, chipmunks and burrowing tortoises. Show less