20 episodesFirst aired 8 October 1989
Oct 198953m
The area's evolutionary roots opens this look at the African valley.
Oct 198953m
The wildlife that lives on the Great Rift's ash plains.
Oct 198953m
Examines the Red Sea, the island of Madagascar and East Africa.
Oct 198953m
Soft coral, sponges, tubeworms, anemones and giant cod adapt to life in Antarctica's subzero waters.
Nov 198953m
Profiles the wildlife living within the British crown colony of Hong Kong
Nov 198953m
An exploration of the Caledonian forest in Scotland, Britain's largest remaining area of ancient woodland.
Dec 198953m
A portrait of the endangered mountain gorilla in equatorial Africa.
Dec 198953m
A look at the maneating tigers of the Sundarbans delta in India.
Jan 199053m
Resource management in Italy's alpine Gran Paradiso National Park has consequences beyond the parks boundaries.
Jan 199053m
Scientists study sandhill cranes on Nebraskan plains, Alaskan and Siberian coasts and in the Northwest Territories.
Feb 199053m
The forests and waters of Ethiopia's Bale Mountains, may one day renew the country's depleted landscape.
Feb 199053m
A look at how Europe's birds of prey have adapted.
Feb 199053m
The relationship between working sheepdogs and flocks of sheep. Selective breeding yields a sheepdog with outstanding abilities to tend the creature other canines prey upon.
Mar 199053m
Tracing the course of the Colorado River.
Mar 199053m
Thousands of years of human settlement provide the backdrop by which to discover the wildlife of Ireland.
Mar 199053m
The fur trade continues to threaten the South American otter with extinction, despite its status as an endangered species.
Mar 199053m
Profiles the Haida Indians who live on British Columbia's Queen Charlotte Island.
Apr 199053m
An exploration of the environmental impact of man's attempts to halt the erosion of Presque Isle beaches.
Apr 199053m
The effect of the 1988 fire on the ecosystem of Yellowstone National Park.
Apr 199053m
A natural history of the snake includes its significance to man as a symbol of fertility, immortality and death.