The Bat Man of Mexico

Standing almost alone in the great Southern Ocean, South Georgia island plays host to some of the largest concentrations of animals anywhere on Earth during the spring and summer months. This is the story of these vast animal cities, and of the order that lies beneath their seeming chaos.

Some 150 wild horses live in an expanse of desert, grassland and rock along Namibia’s west coast - a ‘Forbidden Zone’ rife with ghost towns.

The Amazon is one of the wildest and least explored parts of the planet. Encompassing 6 countries and 2 million square miles of forest, river and floodplain, it has the highest diversity of life on the planet, but what lies below it is truly shocking. In its deep muddy rivers, clear streams and expansive floodplains a freak-show of fish life has exploded, with some of the strangest shapes and weirdest adaptations on Earth. Hiding in the vast rivers and streams is an electric grid, a bizarre community of fish with a highly sophisticated electric sixth sense. Using electricity, these "Super" fish can communicate wirelessly, control each other remotely and emit shocks that can stop a human heart. This cryptic world has mystified scientists throughout the ages. Now an intrepid scientist, Will Crampton ventures back into the dark jungles where the inspiration for our technology driven world first emerged, in an attempt to unravel their secrets and unlock the electric code.

In the Bible, God destroys the sinful cities of Sodom and Gomorrah and sides with Joshua to conquer another misbehaving city: Jericho. Are these stories true or simply moral fables? Archaeological and geological evidence holds the answer.

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.

After years of preparation, a team of highly motivated Quebeckers set out on one of the longest wilderness expeditions ever documented. Stage one involves skiing in relentless polar conditions from Ellesmere Island to the Northwest Passage where the challenge was reaching the mainland. Cue canoes for a 2000km journey across Nunavut and NWT until they reach the first dirt road available where bikes are waiting to be pedalled 4000km to Point Pelee in Ontario.

A remarkable film from the National Geographic's daring EXPLORER series, ICELAND RIVER CHALLENGE follows twelve modern-day pioneers on a treacherous expedition down a remote Icelandic river. Crash through waterfalls and glide through sparkling glacial tunnels on this breathtaking journey. Using kayaks, inflatable rafts, and ultralight aircraft, the adventurers journey through the beauty and isolation of this dangerous waterway. Come explore a river that has, until now, defied exploration; witness the heart-stopping power of nature in all its glory with ICELAND RIVER CHALLENGE.

Among Big Cats and Anteaters - With Lydia Möcklinghoff in Brazil's wildlife

The few thousand kilometers that separate Patagonia from the South Pole are a fascinating and hypnotic journey for explorers. Some even speak of an addiction, 'the Antarctic bite'. March of the Penguins (2005) director Luc Jacquet has been experiencing it for 30 years. His new film is a visually-striking adventure, offering us images beyond words, an ultimate tribute to a vanishing continent.

Ocean Voyagers explores the familiar themes of motherhood and parenting in a world as unfamiliar as it is breathtaking. Featuring a precocious newborn humpback calf and his enormous 40 ton mother, we are taken on a journey of discovery into their world.

An Otter Study is a 1912 British short black-and-white silent documentary film, produced by Kineto, featuring an otter in its natural habitat, including groundbreaking footage of underwater hunting scenes. The film provided a novel treatment of the creature, which had previously appeared on film only as the victim of hunt films, with the unique underwater footage, shot by a cameraman behind glass in a tank concealed on the bed of the river in the opening scene, and a concluding scene, excised from the surviving print, in which it escapes the hunters. It was long thought lost until footage from a 1920s Visual Education re-release of the film, re-edited under the supervision of Professor J Arthur Thomson of Aberdeen University's Natural History Department, was rediscovered.

In Sekenani River in Maasai Mara Park, a pod of hippopotamuses and a bask of crocodiles keep a cautious truce.

On Botswana's Linyanti Plains, a band of brothers reigns amongst the top predators: three cheetahs - partners since birth and one of the most efficient hunting forces on the plains - until tragedy strikes. Achilles, the hunt leader of the brotherhood, is killed by a cobra bite, leaving his brothers Odin and Shiva to fend for themselves. With their coalition diminished they must adapt fast: learning to hunt as a twosome and defend their kills without the help of Achilles. Confounding their efforts is a host of predators: an injured leopard, a cunning hyena and a devious black-backed jackal. Making matters worse, a lone male cheetah begins to trespass on their land. Will these cheetah blood brothers survive the overwhelming odds stacked against them?

Set in the vast expanse of South Africa's Mala Mala game reserve, a host of Africa's biggest and fiercest wildlife species compete for food, mates and territory against the backdrop of a harsh dry season.

A documentary that focuses on how animals born with unusual colours have a much harder struggle than normal. Follow white lions, a white baboon and a yellow crocodile.

What if there was a museum that contained every type of life form in the universe? This experience takes you on a tour through the possible forms alien life might take, from the eerily familiar to the utterly exotic, ranging from the inside of the Earth to the most hostile corners of the universe. New research is upending our idea of life and where it could be hiding: not just on Earth-like planets, where beings could mimic what our planet has produced, but in far flung places like the hearts of dead stars and the rings of gas giant planets. Nowhere in the universe is off limits. Only when we know what else is out there will we truly know ourselves. This thought experiment will give us a glimpse into what could be out there, how we might find it, and just how far nature’s imagination might stretch.

Follow ocean legend Sylvia Earle, renowned underwater National Geographic photographer Brian Skerry, writer Max Kennedy and their crew of teenage aquanauts on a year-long quest to deploy science and photography to inspire President Obama to establish new Blue Parks to protect essential habitats across an unseen American Wilderness.

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

For generations lions have ruled over the Londolozi region of Mpumalanga but one brotherhood reigns supreme: a coalition of two brothers descendent from a long dynasty. To get to the top they have hunted, fought and won many battles. This film follows this Brotherhood as they conquer prides, kill rivals and continue their bloodline guaranteeing their genes are firmly entrenched in future generations to come.

Two of Africa's 'savannah giants'- one a predator and one a bovine are on a collision course of epic proportions. An injured buffalo is one of Africa's most dangerous animals but for the lions of the Savannah taking down buffalo is in their genes. One wrong move and the hunter could become the hunted- it's a constant war between predator and prey and every day is a constant battle for survival out here in the African Savannah.