Botanist Francis Hallé Explains...

Trek into the hidden battlefields of northern Botswana where lions and spotted hyenas clash in overlapping territories. With never-before-seen footage, much of it filmed at night, you'll uncover an intense and vicious blood feud that has been waged for millennia. Follow the Southern Clan, led by a powerful hyena matriarch whose firstborn female cub kills her sister at birth to assure her succession as leader of the clan. Lurk in the shadows as a lioness from the Central Pride gives birth to three cubs and then encounters a deadly Egyptian cobra. You'll be stunned by breathtaking chase scenes as the hyena matriarch is brutally killed by a male lion, throwing the clan into chaos. Discover nature's savage conflicts in this ancient rivalry.

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.

Trees talk, know family ties and care for their young? Is this too fantastic to be true? German forester Peter Wohlleben and scientist Suzanne Simard have been observing and investigating the communication between trees over decades. And their findings are most astounding.

This film, three years in the making, The remote forests of Kalkalpen National Park in Austria, the largest area of wilderness in the European Alps, have been left untouched by humans for nearly a quarter of a century in order to return to their natural, primeval state. The landscape regenerates itself in dramatic cycles of growth and decay, and this bold hands-off method of conservation yields salient results: the lynx, absent from the area for 115 years, has returned.

National Geographic filmmakers, Dereck and Beverly Joubert, explore how some animals are thrust together by the forces of nature-sometimes through a millennium of evolution or even last year’s drought. In the aftermath of strange elephant deaths, they piece together a visually stunning story that confirms their theory that lions were hunting elephants. Narrated by Jeremy Irons.

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.

Aftermath: Population Zero investigates what would happen if every single person on Earth simply disappeared. Explore the interactive world without us.

Record high oil prices, global warming, and an insatiable demand for energy: these issues define our generation. The film exposes shocking connections between the auto industry, the oil industry, and the government, while exploring alternative energies such as solar, wind, electricity, and non-food-based biofuels.

A scientist explains how the savagery and efficiency of the insect world could result in their taking over the world.

Coral Reef Adventure follows the real-life expedition of ocean explorers and underwater filmmakers Howard and Michele Hall. Using large-format cameras, the Halls guide us to the islands and sun-drenched waters of the South Pacific to document the health and beauty of coral reefs. Featuring songs written and recorded by Crosby, Stills & Nash.

Ring of Fire is about the immense natural force of the great circle of volcanoes and seismic activity that rings the Pacific Ocean and the varied people and cultures who coexist with them. Spectacular volcanic eruptions are featured, including Mount St. Helens, Navidad in Chile, Sakurajima in Japan, and Mount Merapi in Indonesia.

The story of the evolution of tropical rain forests, their recent and rapid destruction, and the intense efforts of scientists to understand them even as they disappear. This film gives viewers a better appreciation of the importance of tropical rain forests on a global scale.

Wars of the future will be fought over water as they are over oil today, as the source of human survival enters the global marketplace and political arena. Corporate giants, private investors, and corrupt governments vie for control of our dwindling supply, prompting protests, lawsuits, and revolutions from citizens fighting for the right to survive.

In September 1954, David Attenborough, cameraman Charles Lagus, Jack Lester and Alf Woods, both from the Zoological Society of London, set out for Sierra Leone. They spent three months intently surveying the landscapes of Sierra Leone in search of nature’s rarest animals. Although predominantly searching for Picathartes gymnocephalus (the White-necked Rockfowl) they hoped to take back to London a representative collection of the whole of animal life in this part of Africa.

This large format film explores the last great wilderness on earth. It takes you to the coldest, driest, windiest continent, Antarctica. The film explores the life in Antarctica, both for the animals that live their and the scientist that work there.

Attempting an ethical perspective on the meat industry. Various people who work in the industry have their say. Can they justify killing animals?

RHINO MAN follows the courageous field rangers who risk their lives every day to protect South Africa's rhinos from being poached to extinction.

Norman is not just an admirer of nature, he's a part of it. He survives the harshness of the climate and the wildlife by coexisting with it. With his wife Nebraska, they live almost entirely off the land, making money by selling their furs.

Explore the extraordinary hidden world of insects, where a leaf weighs more than a car, rain drops feel like exploding hand grenades and a blade of grass soars like a skyscraper. Shot on location in the Borneo rainforest, Bugs! brings the beautiful and dangerous universe of its tiny stars up close and personal with cutting-edge technology that magnifies them up to 250,000 times their normal size.

A look at the great wolf debate with comments and views from people on both sides. It also contains footage of Natives dressing up & doing tribal dances. The link between wolves, bison, and Native Americans; as well as white man's reasoning behind their determination to eliminate bison and wolves from the landscape.