Ocean Voyagers

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!!

The passage of time is spellbinding in this cinematic tour de force about the Wadden Sea. A film that inhales and exhales along with the tides as it explores the fragile relationship between man and nature.

Documentary following researchers as they try to take the first-ever picture of a black hole. They must travel the globe to build a revolutionary telescope that spans planet Earth.

Werner Herzog's documentary film about the "Grizzly Man" Timothy Treadwell and what the thirteen summers in a National Park in Alaska were like in one man's attempt to protect the grizzly bears. The film is full of unique images and a look into the spirit of a man who sacrificed himself for nature.

Costa Rica's motto is Pura Vida - Pure Life - and this deceptively small country is bursting with some of the most spectacular wildlife and pristine ecosystems in the world. All this diversity thrives, in part, thanks to one surprising little creature: hummingbirds. Venture across Costa Rica's wild and rugged landscapes, from volcanic peaks to coastal jungle to misty cloud forests and discover the nation's dazzling diversity of hummingbirds. Watch how these tiny birds play an outsize role in maintaining some of the richest and wildest environments on Earth, where a whole community of creatures, such as macaws and monkeys, enjoys The Hummingbird Effect.

We have volunteered for the Earth Conservation Corps to restore the Anacostia river and the Washington wasteland where we live and often meet an early violent death. We are striving to return our nation's bird,the bald eagle, to our Nation's Capitol. If the eagles survive maybe we can too. We began filming this documentary in 1992 to show people our America. "Endangered Species" is our story. - Written by Antoine Woods

A dramatized tale of how wolves recovered in Europe after almost going extinct.

Sir David Attenborough narrates a documentary about the Kea, the world's only alpine parrot. Playful and destructive, it attacks cars, starts landslides and terrorises New Zealand ski resorts but behind the bad behaviour there's a sharp mind at work. David tries to play chess with a kea and discovers how its cheeky character is the key to its survival.

Cuba's enforced isolation has resulted in the unlikeliest of marine reserves: a huge, rambling archipelago known as Jardines de la Reina, or "Gardens of the Queen." Stretching around 140 miles along the southern coast of Cuba, it's one of the longest barrier reef systems in the world. Get an up-close look at Fidel Castro's diving playground, a forgotten ocean paradise unseen for half a century, and witness exotic species rarely seen elsewhere in the region. It's the lost jewel of the Caribbean, but how long can this pristine wilderness survive?