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

Revealing the extraordinary animals, astonishing landscapes and remarkable people who live alongside the Amazon, Mississippi and Nile.

Documentary revealing the animals, landscapes and people of the greatest river on Earth. From transparent lagoons to pink dolphins, the Amazon hides spectacular secrets.

A look at the astonishing wildlife, landscapes and people of the Nile. From elephants and leopards to ancient wonders, its great length is a lifeline for wildlife and cultures.

The surprising story of the Mississippi, a river that unites the USA. From frozen waterfalls to time-travelling barges, the Mississippi connects a continent like no other river.

Earth's Natural Wonders are parts of the natural world that nature has carved on such a scale, that they beggar belief - vast mountain ranges, impenetrable rainforests and dazzling tropical islands.

In many of the earth's natural wonders there is an abundance of animals. These can be a devastating threat to the people who live there, or they can provide a means of survival, but often at a high price.

In some of the world's most spectacular natural wonders, people push themselves to the limit in order to survive. For the people who call these extraordinary places home, survival requires skill, ingenuity and bravery.

Documentary series examining what it takes to survive in some of the most extreme places on the planet.

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.

The nature series gives a bird\'s-eye view of Asia and Australia.

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

Exploring some of the world's most isolated and iconic tropical islands.

Journey across Madagascar, the oldest island on Earth. Over time, it has given rise to more unique plants and animals, from its lemurs to chameleons, than any other island.

A journey from Borneo's rich coral reefs, through lush jungles to its mountainous heart, revealing why this island is home to a greater variety of life than almost any other.

Exploring Hawaii, a tropical sanctuary for any wildlife that can reach its remote shores. From humpback whales to waterfall-climbing fish, it is home to an extraordinary wealth of wildlife.

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?

From a single spark of life, through millions of generations, animals have become diverse, weird and beautiful. Chris Packham tells the incredible story in astonishing new detail.

How did the elephant get so big? Chris Packham explores the four-billion-year story of how a tiny cell evolved into complex, gentle giants.

How did the ostrich come to lay the biggest egg on earth? Chris Packham explores the way reproduction has shaped life on earth and the surprising evolutionary origins of sex, eggs and birds. It's a four-billion-year journey contained within a shell.

How did the bat get so hungry? Chris Packham explores how the drive to find food has shaped animal life. The origin of bums, guts, jaws and super hearing.

How did the dolphin get so smart? Chris Packham explores the origins of senses, brains and intelligence, in an evolutionary odyssey that ventures from ocean to land and back again.

How did the horse become so fast? Chris Packham sets out on a slithering, swimming, sprinting odyssey that explores the evolutionary beginnings of animal movement and how it reached its peak in one of the most elegant and athletic animals on earth: the horse.

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

In this episode Brian uncovers how the stunning diversity of shapes in the natural world are shadows of the rules that govern the universe. In Spain he shows how an attempt by hundreds of people to build the highest human tower reveals the force that shapes our planet.