Aired: October 08, 1989
The area's evolutionary roots opens this look at the African valley.
Aired: October 15, 1989
The wildlife that lives on the Great Rift's ash plains.
Aired: October 22, 1989
Examines the Red Sea, the island of Madagascar and East Africa.
Aired: October 29, 1989
Soft coral, sponges, tubeworms, anemones and giant cod adapt to life in Antarctica's subzero waters.
Aired: November 12, 1989
Profiles the wildlife living within the British crown colony of Hong Kong
Aired: November 19, 1989
An exploration of the Caledonian forest in Scotland, Britain's largest remaining area of ancient woodland.
Aired: December 10, 1989
A portrait of the endangered mountain gorilla in equatorial Africa.
Aired: December 17, 1989
A look at the maneating tigers of the Sundarbans delta in India.
Aired: January 07, 1990
Resource management in Italy's alpine Gran Paradiso National Park has consequences beyond the parks boundaries.
Aired: January 21, 1990
Scientists study sandhill cranes on Nebraskan plains, Alaskan and Siberian coasts and in the Northwest Territories.
Aired: February 04, 1990
The forests and waters of Ethiopia's Bale Mountains, may one day renew the country's depleted landscape.
Aired: February 11, 1990
A look at how Europe's birds of prey have adapted.
Aired: February 18, 1990
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.
Aired: March 04, 1990
Tracing the course of the Colorado River.
Aired: March 11, 1990
Thousands of years of human settlement provide the backdrop by which to discover the wildlife of Ireland.
Aired: March 18, 1990
The fur trade continues to threaten the South American otter with extinction, despite its status as an endangered species.
Aired: March 25, 1990
Profiles the Haida Indians who live on British Columbia's Queen Charlotte Island.
Aired: April 01, 1990
An exploration of the environmental impact of man's attempts to halt the erosion of Presque Isle beaches.
Aired: April 08, 1990
The effect of the 1988 fire on the ecosystem of Yellowstone National Park.
Aired: April 15, 1990
A natural history of the snake includes its significance to man as a symbol of fertility, immortality and death.