1. On the 8th Day

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. 24 September 1984

The effect on the natural world of a nuclear war, reporting on reseacrh in America, Russia and Britain which suggests that for thirty years the world has had the capacity to cause `a nuclear winter'. A Natural World special transmitted in 1984.

2. Vanishing Earth - Soil

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. 4 August 1986

Filmed in Nepal, Ethiopia and China investigates how the misuse of land and not drought lies at the root of famines in Ethiopia and elsewhere. The programme reveals how government policy and international trade conspire to cause starvation.

3. Vanishing Earth - Water

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. 5 August 1986

Burkino Faso, the edge of the Sahel in west Africa, is one of the poorest countries in the world. It has been gripped by drought since 1968, yet simple techniques are helping to conserve their rainfall. In the western USA, massive and expensive irrigation schemes are bringing a harvest of subsidised yet unsaleable crops.

5. Animals: The Inside Story - New Lives

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. 1 January 2002

In this fascinating new three-part documentary, viewers can look inside animals to see what makes them tick. Fusing exciting computer animation, thermal imaging and compelling science, Animals: The Inside Story puts creatures under the microscope to expose the hidden mechanisms that drive their actions. Part 2, New Lives, unravels the mysteries of animal reproduction from courtship and mating through to the creation of new life. The virtual world of the elephant womb allows us to see a baby elephant develop over 22 months. Emperor penguins produce eggs in the harshest climate on earth. Go inside this life support capsule and see how the shell is made and the chick grows. Metamorphosis is one of nature's miracles. From the inside, watch a total transformation as a land-based caterpillar becomes a graceful aerial athlete.

6. Animals: The Inside Story - Extreme Lives

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. 1 January 2002

Extreme Lives, the final episode of Animals: The Inside Story, explores the limits of animal endurance. A polar bear uses its thick fur coat to turn light into heat and survive the Arctic cold. Hibernation is one way to endure winter but the rare Vancouver Island Marmot is on a knife-edge between life and death. Wood frogs enter a state of suspended animation, freezing 65% of their bodies to stay alive. The camel survives extremes of desert heat with amazing blood cells and a nose designed to conserve every drop of moisture.