David Attenborough shows that without gravity the world would be a chaotic place. But some species like spiders, birds and bats have overcome the force of gravity. Show more

David Attenborough explores the isolated islands which are a haven for ancient species as well as the cradle of new ones. Show more

David Attenborough looks at the damage people are causing far away from our centres of population, and suggests what can be done to preserve the planet. Show more

David Attenborough explores the ocean, which covers 70 per cent of the Earth's surface. It contains creatures like the leafy sea dragon and the narwhal. Show more

From the mountains of Africa to the glaciers of Antarctica and the Arctic, David Attenborough explores the ways animals adapt to survive in regions of snow and ice. Show more

David Attenborough explores the Amazon jungle, from the tops of the huge trees to the undergrowth which lies at their roots. Show more

David Attenborough explores the grasslands of the Americas, Eurasia and Africa, and encounters the rare maned wolf, a giant anteater, bison, prairie chickens and more. Show more

David Attenborough visits the hottest and driest places on earth. In the Mojave desert he finds a plant that has been growing there for more than 10,000 years. Show more

David Attenborough follows the river Amazon from the Andes to the sea, exploring the life in and around it as it changes from cold torrents to a vast warm delta. Show more

David Attenborough examines the colossal forces that shape the earth's surface. He visits the deepest gorge in the world - the Kali Gandaki in Nepal. Show more

From the Arctic to the southern USA stretches the largest forest in the world. David Attenborough roams from north to south through this spectacular woodland. Show more

David Attenborough examines the borders between land and water and the life that thrives there, from an English estuary to tropical mangrove forests. Show more