Fresh water defines the distribution of life on land. Follow the descent of rivers from their mountain sources to the sea. Watch spectacular waterfalls, fly inside the Grand Canyon and explore the wildlife in the world's deepest lake.

Caves are remarkable habitats with equally bizarre wildlife. Cave angel fish cling to the walls behind waterfalls with microscopic hooks on their fins. Cave swiftlets navigate by echo-location and build nests out of saliva. The Texas cave salamander has neither eyes nor pigment. Planet Earth gets unique access to a hidden world of stalactites, stalagmites, snotites and troglodytes.

12-01-2007, Around 30% of the land's surface is desert, the most varied of our ecosystems despite the lack of rain. Saharan sandstorms reach nearly a mile high and desert rivers run for a single day.

The Arctic and Antarctic experience the most extreme seasons on Earth. Time-lapse cameras watch a colony of emperor penguins, transforming them into a single organism. The film reveals new science about the dynamics of emperor penguin behaviour. In the north, unique aerial images show a polar bear swimming more than 100km. Diving for up to two minutes at a time. The exhausted polar bear later attacks a herd of walrus in a true clash of the Titans.

06-01-2007, Jungles cover roughly three per cent of our planet yet contain 50 per cent of the world's species. High-definition cameras enable unprecedented views of animals living on the dark jungle floor

06-01-2007, A humpback whale mother and calf embark on an epic journey from tropical coral paradises to storm ravaged polar seas.

05-01-2007, The Taiga forest, on the edge of the Arctic, is a silent world of stunted conifers. The trees may be small but filming from the air reveals its true scale. A third of all trees on Earth grow here and during the short summer they produce enough oxygen to change the atmosphere.

06-01-2007, Life goes to extraordinary lengths to survive this immense realm. A 30 tonne whale shark gorges on a school of fish and the unique overhead heli-gimbal camera reveals common dolphins rocketing at more than 30km an hour.

David Attenborough presents a documentary series exploring how animals meet the challenges of surviving in the most iconic habitats on earth.

A compilation episode of the wildlife documentary series presented by David Attenborough, uncovering the secrets of animals across the globe.

Remote islands offer sanctuary for some of the planet's strangest and rarest creatures. The rare pygmy three-toed sloth enjoys a peaceful existence on an idyllic Caribbean island, while nesting albatross thrive in predator-free isolation.

The great mountain ranges are some of the planet's most spectacular landscapes, but they are unforgiving places to live in, and only a few animals have what it takes to live at extreme altitude.

Jungles provide the richest habitats on the planet - mysterious worlds of high drama where extraordinary animals attempt to survive in the most competitive place on earth.

The world's deserts are lands of extremes that force animals to come up with ingenious ways of coping with hostile conditions, giving rise to the most incredible survival stories on earth.

Grasslands cover one quarter of all land and support the vast gatherings of wildlife, but to survive here animals must endure the most hostile seasonal changes on the planet.

Cities are growing at a faster rate than any other habitat on Earth. They may seem an unlikely place for animals to thrive, but they can be a world of surprising opportunity.

Our home - thrilling, mind-blowing, and full of hope. David Attenborough shares amazing stories of the wonders of the planet. There's always more to discover.

Sir David Attenborough explores the dangerous frontiers created by the world's coasts, where animals fight for survival amidst constant change.

A groundbreaking journey from tropical shallow seas to the mysterious depths. Sir David Attenborough reveals extraordinary new worlds and unique animal behaviours in the ocean.

David Attenborough explores earth’s greatest wildernesses, where extraordinary life survives in unexpected ways, and nature puts on its most dramatic show.

Fresh water is the lifeblood of planet Earth, where incredible animal dramas play out. From death-feigning fish to frogs that glide, each depends on fresh water for their survival.

Sir David Attenborough journeys into the forests, where dogs communicate with whistles, treehoppers fight assassin bugs, ‘spirit bears’ fish, and hornbills imprison themselves in trees.

David Attenborough presents an extreme world where animals battle to survive the elements – and life exists on a knife edge.

Discover the extraordinary ways in which wildlife survives in a rapidly changing human world. From cobras hunting in houses to macaques stealing mobile phones to barter with.

Sir David Attenborough introduces conservation heroes fighting to save the world’s wildlife, from exploring remote jungles to going undercover to catch criminals in the illegal ivory trade.

Documentary series exploring how we've become so reliant on oil in little longer than a human lifetime.

Documentary series exploring how we've become so reliant on oil in little longer than a human lifetime. In this series, Professor Iain Stewart visits the places that gave birth to the earth's oil riches, discovers the people who fought over its control and supply, and explores how our insatiable thirst for oil is changing the very planet on which we depend.

By the early 1950s, a holy trinity of oil, plastics and fertilisers had transformed the planet. But as Professor Iain Stewart reveals, when the oil producing countries demanded a greater share in profits from the Western energy companies, the oil and gas fields of the Middle East became a focus for coup d'états and military conflict.

As we entered the 21st century, the world was guzzling oil, coal and gas like never before. Despite fears of 'peak oil', Professor Iain Stewart discovers that while huge technological advances are helping extend the life of existing oilfields, new unconventional oil and gas supplies like shale gas and tar sands are extending the hydrocarbon age well into the 21st century.

Documentary series that explores humanity’s relationship with the natural world and our growing understanding of how nature works.