Richard Donat

The Channeled Scablands in Washington state defied conventional explanations for their formation for decades. Little by little evidence mounted for an old theory that was rejected by the scientific establishment. It involved glaciers, volcanoes, a relatively minor river and a prodigious amount of water. Originally aired as an episide of NOVA.

Take A Spectacular Journey.  It Starts Right Here...  Arabia: Sand, Sea & Sky  Take a stunning tour of Arabia's natural world- a land of vivid contrast and splendor. Your journey begins in the magnificent coral reefs of the Red Sea where barracuda, giant mantra rays, and sharks comb the fertile waters. Then, high in the cliffs of the great mountain barrier, you will be fascinated by the complex social behavior of a troop of baboons. As you descend into the foothills, thousands of migrating birds converge, including the flamboyant Abyssinian Roller which will dazzle you with its brilliant feathers and swooping aerobatic dives. Finally, travel by camel across the immense sculptured desert, as the Bedouins have for more than thirty-five hundred years on an expedition you will never forget in ARABIA: SAND, SEA, & SKY.

At the edge of the Tequendama Falls, María Prieto uncovers the tragic story of her namesake — a woman who, heartbroken, ended her life at that very cliff. Two lives separated by a century, intertwined by coincidence, love, and a waterfall.

Every year, thousands of Antarctica's emperor penguins make an astonishing journey to breed their young. They walk, marching day and night in single file 70 miles into the darkest, driest and coldest continent on Earth.  This amazing, true-life tale is touched with humour and alive with thrills. Breathtaking photography captures the transcendent beauty and staggering drama of devoted parent penguins who, in the fierce polar winter, take turns guarding their egg and trekking to the ocean in search of food. Predators hunt them, storms lash them. But the safety of their adorable chicks makes it all worthwhile. So follow the leader... to adventure!!

A documentary on Al Gore's campaign to make the issue of global warming a recognized problem worldwide.

Translated literally as "Animals in Love," the French-language documentary Animaux Amoreux depicts various species of the animal kingdom in courting, mating and reproduction activities. Laurent Charbonnier directs.

Various amphibious pond dwellers, including grass frogs, tree frogs, common toads and other amphibians are shown moving around, feeding, mating, fertilizing and evolving. Also on display are natterjack and midwife toads, yellow-bellied toads and water frogs.

The biodiversity of a pond, which is already endangered in many places, is shown. The individual specimens are introduced over the course of an early summer's day. The highlight is the frog concert at night.