Atonement

They are giants—stretching more than 300 feet above the ground, with hidden gardens and mysterious predators thriving within their canopy. National Geographic reveals the unexplored environment of the California redwoods in an epic, year-long exploration. Obsessive redwood climber Steve Sillett of Humboldt State University explores their massive crowns, discovering new record-breaking trees, while escaping falling branches and crashing trees in the process. Down below, National Geographic Explorer-in-Residence Mike Fay charts the redwood range to size up the past and future of these primeval trees threatened in 21st century California.

Wild tigress, Machli, is one of three sisters raised in India's Ranthambore National Park. Their mother, "The Lady of the Lakes," ruled the lakeside territory, until Machli rose up and took possession of her mother's throne.

Ant colonies are one of the wonders of nature: complex, organised… and mysterious. This programme reveals the secret, underground world of the ant colony, in a way that’s never been seen before. At its heart is a massive, full-scale ant nest, specially designed and built to allow cameras to see its inner workings. The nest is a new home for a million-strong colony of leafcutter ants from Trinidad. For a month, entomologist Dr George McGavin and leafcutter expert Prof Adam Hart capture every aspect of the life of the colony, using time-lapse cameras, microscopes, microphones and radio tracking technology. The programme explores how these tiny insects can achieve such spectacular feats of collective organisation. It also reveals the workings of one of the most complex and mysterious societies in the natural world – and shows the surprising ways in which ants are helping us solve global problems.

A film on the world's most bizarre charity: based on the idea that sex can change the world, the NGO raises money for their environmental cause by selling home-made erotic films on the internet.

Capturing Avatar is a feature length behind-the-scenes documentary about the making of Avatar. It uses footage from the film's development, as well as stock footage from as far back as the production of Titanic in 1995. Also included are numerous interviews with cast, artists, and other crew members. The documentary was released as a bonus feature on the extended collector's edition of Avatar.

In the deep ocean, life is concentrated at chemosynthetic oases where primary production is made possible via chemosynthesis at cold seeps and deep sea hydrothermal vents. The non-chemosynthetic regions of the deep are divided into two very different worlds. The worlds of the deep sea could not be more different, and yet their stories are fundamentally intertwined. In this movie, we delve into the Twilight Zone.

A 1934 GB production that was picked up in 1937 by Educational for 20th Century Fox distribution about the gannet, a beautiful white and exceedingly graceful bird deemed the best fisherman in the world, that inhabits a small rocky island off the coast of Wales. The film won the 1938 Academy Award for Best Short Subject (One-Reel).

While most teens spend their days in a self-absorbed haze, Simon Jackson was out in the world connecting with anyone who could help him save the spirit bear. For this, Simon became one of Time's Heroes of the Planet. It's a remarkable accomplishment for one so young, and an inspiring story for lovers of wilderness of all ages. But his devotion to the cause made him an outcast amongst his peers.

THE QUEST: Everest is a journey to deeper understand and climb the most iconic mountain in the world, Mt. Everest, and to reveal its amazing history and culture. From experiencing Everest like never before to witnessing unique stories about one of the most remarkable places on earth, THE QUEST: Everest is a one-of-a-kind cinematic tribute to the human spirit of adventure that lives inside us all.

Bear Country is a 1953 American short documentary film directed by James Algar. It won an Academy Award at the 26th Academy Awards in 1954 for Best Short Subject (Two-Reel).[1] The film was produced by Walt Disney as part of the True-Life Adventures series of nature documentaries.

A feature-length documentary showing the changing world of nature, the sky, the sea, the sun, planets, insects and volcanic action. A story of nature's strange and intricate designs for survival and her many methods of perpetuating life.