Season 4

Torrential rains flood Kenya’s Tsavo Plain triggering a cycle of animal and plant regeneration that flowers in the short period before the next drought.

How plants and their leaves adapt to different climates, predatory animals and man.

A five-year chronicle of India’s endangered gharial crocodile.

The year-long sojourn of artist and naturalist Keith Brockie on Scotland's Isle of May is captured on film.

An exploration of the ecosystem of Central America's rain forest.

An exploration of the scientific research into the nutritional, medicinal and economic value of plants.

An examination of the diverse plants and animals that have adapted to the harsh environment of the Kalahari Desert in South Africa.

A visit to Brazil's national park Emas, home to a unique collection of rare and unusual wildlife.

The huge mating flocks of the East African quelea, feared by farmers almost as much as they fear locusts.

A look at sea creatures of the Arctic including planktonic animals, small crustaceans, seals, belugas, tucked narwhals and polar bears.

After the nine-month Arctic winter, lemmings, hares, foxes and caribous become active to raise their young.

A study of man’s relationship with the Arctic and its wildlife.

Wolfgang Bayer focuses on the native giant saguaro cactus of the southwestern United States.

The sophisticated trapping mechanism of the main group of carnivorous plants.

A look at the trembling aspen, a widely distributed poplar found in more regions of North America than any other tree.

The fragile ecosystem of the great African rainforest of Korup in Cameroon.

Chronicling a weeklong series of bird-watching activities at sites that include the Anhinga Trail in the Everglades, Tampa Bay Island and Port Orange.

Wildlife cinematographer Wolfgang Bayer focuses on the Laysan Albatross of the Hawaiian Islands.

A five year study of the golden eagle, Britain's largest bird of prey, in the Scottish highlands.

An examination of the vultures of Africa's Serengeti plain and the rainforests of South America.