Season 6

Wildlife flourishes in Nevada's desert landscape because of one narrow river covering less than 1% of the land.

Attempts to protect the unique animals and plants of Brazil threatened by development of the Amazon jungle.

The lemur, an agile nocturnal primate of Madagascar, so-named because of its secretive habits and haunting cries.

The process of wildlife filmmaking as chronicled by a crew during their three-year study of the Galapagos Islands.

The tremendous difference in animal lifestyle and in landscape during East Africa's dry season and its wet season.

The hammerhead stork, believed by East African tribesmen to have the power to call lightning from the sky.

Scientists Katia and Maurice Krafft seek to uncover the mystery of volcanoes by studying them on location as they erupt.

International endeavors to protect the endangered Indian tiger are highlighted by scenes of a mother raising her cubs in the wild.

Unusual wildlife inhabitants, beautiful terrain and natural wonders grace the Pacific islands comprising New Zealand.

U.S. scientist Dan Janzen uses innovative conservation plans to create a national park amid a tropical forest.

Close-up film captures birds in-flight; tiny hummingbirds draw nectar while hovering above flowers.

A Hawaiian island evolves from underwater volcano to snow-capped mountain and finally to coral atoll.

The first of a three-part survey of "Okavango: Jewel of the Kalahari" describes how earthquakes diverted the Okavango River into Botswana's Kalahari Desert. Observed: elephants, zebras, buffaloes, vultures, ostriches, bush babies and bat-eared foxes.

Creatures of the air, trees and water brave the five-month floods through the Okavango delta. Part 2 of "Okavango: Jewel of the Kalahari," observes African skimmers, lily trotters, baboons, dwarf mouth-breeders, tiger fish and catfishlike squeakers.

People of Botswana must balance wildlife protection with preservation of their precious water source.

The Asian elephant is shown to be a creature of both great strength and intelligence.

After two years in the Pacific, the sockeye salmon battles rapids returning to its birthplace to spawn.

Ranchers and scientists practice conservationism in Venezuelan and Colombian grasslands to protect native animals.

Naturalist Tom Williams studies England's Avon River and the fish and fowl it supports.

A growing African population threatens elephant survival by farming its foraging land and hunting the beast for ivory.

An exploration of the coral reefs of the Malay Triangle made up of the Philippines, Malaysia and New Guinea.