Documentary following endangered species fighting for their survival. David, a chimpanzee in Senegal, tries to overcome threats to his leadership and ensure an heir.

Documentary following endangered species fighting for their survival. A colony of emperor penguins try to keep themselves and their chicks alive through the winter.

Documentary following endangered species fighting for their survival. The lioness leader of a once mighty pride must now battle for their very survival.

Documentary following endangered species fighting for their survival. A painted wolf matriarch's feud with her daughter threatens to bring the dynasty down.

Documentary following endangered species fighting for their survival. A tigress must protect her cubs while battling rivals who want to steal her lands and overthrow her.

Aubrey Manning explores our understanding of the planet.

Aubrey Manning explores a revolution in our understanding of the planet. He starts out by trying to date the Earth, aided by surviving fragments of early Earth found in Greenland and South Africa's Barbertan Mountains. First in the series

Aubrey Manning follows the research submarine "Alvin" on a dive to the world's longest mountain range. Second in the series

Aubrey Manning discovers Pacific seawater in a Bolivian volcano 6,000m above sea level. Third in the series

Aubrey Manning investigates volcanic activity worldwide. Fourth in the series

Aubrey Manning explains how scientists have developed new theories concerning mountain formation, by studying the Himalayas at the top of the Indian subcontinent. Fifth in the series

Aubrey Manning traces the turbulent history of the Ice Age in a journey spanning the globe. Sixth in the series

Aubrey Manning continues his global trek from the jungles of Indonesia to the plains of Africa, and discovers how chance events in history have shaped the evolution of life on Earth. Seventh in the series

Aubrey Manning sets out to discover why the Earth is a living planet and our planetary neighbours like Mars and Venus are not. Eighth in the series

Documentary series. Dr Iain Stewart reveals the role natural forces have played in the creation of the planet Earth, beginning with volcanoes

Nature documentary that takes a breathtaking flight on the wings of birds across six continents and experiences some of the world's greatest natural spectacles from a bird's-eye view.

Nature documentary that takes a breathtaking flight on the wings of birds across six continents and experiences some of the world\'s greatest natural spectacles from a bird\'s-eye view.This episode takes flight across North America, as snow geese fall prey to bald eagles.

This episode takes flight over Africa, as cape gannets join the great sardine run.

Cranes and geese soar over Venice, the white cliffs of Dover and Edinburgh.

The nature series gives a bird\'s-eye view of South America.

Special programme looking at the techniques used in the production of Earthflight.

The air around us is not just empty space; it is an integral part of the chemistry of life. Plants are made from carbon dioxide, nitrogen nourishes the soil and oxygen gives us the energy we need to keep our hearts pumping and our brains alive. But how did we come to understand what air is made of? How did we come to know that this invisible stuff around us contains anything at all?

Dallas Campbell delves in to the Horizon archive to discover how our ideas about dinosaurs have changed over the past 40 years.

David Attenborough travels to the end of the earth, taking viewers on an extraordinary journey across the polar regions of our planet, North and South.

Spring arrives in the polar regions, and the sun appears after an absence of five months; warmth and life return to these magical ice worlds - the greatest seasonal transformation on our planet is underway.

It is high summer in the polar regions, and the sun never sets. Vast hordes of summer visitors cram a lifetime of drama into one long, magical day; they must feed, fight and rear their young in this brief window of plenty.

For the animals in the polar regions, autumn means dramatic battles and epic journeys. Time is running out - the Arctic Ocean is freezing over and the sea ice is advancing at 2.5 miles per day around Antarctica.

There is no greater test for life than winter, as temperatures plummet to 70 below and winds reach 200kph. Darkness and ice extend across the polar regions and only a few remarkable survivors gamble on remaining.

David Attenborough reveals the vast wildnerness of the polar regions and their inhabitants. At the North Pole, the sun returns after six months of darkness.

David Attenborough journeys to both polar regions to investigate what rising temperatures will mean for the people and wildlife that live there and for the rest of the planet.