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You have to go deep underground, along a winding path. You will crawl in the mud and in the cold, in your own sweat, which after a while will freeze on your skin. You will go from light to darkness to rediscover the light, the light in yourself... The first part of the three-part documentary series about exploring the underground in Slovakia will guide you through a tangle of incredibly narrow passages and at the same time a number of spacious underground halls of little-known caves. It introduces you to the admirable people to thank for discovering the underground riches beneath our feet. Rocky Stream, Štefanová, Eternal Robot, Cave of Dead Bats, Old Castle, Moon Shadow. (distributor's official text)

In 2009 a team of British cavers went on an expedition deep within the jungle of central Vietnam. To their amazement they discovered an enormous cave which they believe to be the biggest in the world. The team, the first humans ever to enter the cave, traveled 6 kilometers underground until their way was blocked by a gigantic rock face they dubbed 'The Great Wall of Vietnam'. Now they have returned, but this time with the right equipment to climb the wall and with a geologist and zoologist to discover if this is indeed the Biggest Cave in the World and what secrets lie deep within?

A group of scientists are thinking outside the box for ways to reverse the effects of global warming. And who better to save the earth than National Geographic Channel's host of the World's Toughest Fixes, Sean Riley? He'll join these experts in the labs and in the field to see what wacky new technologies are being developed, like sending mirrors into space and reducing the greenhouse emissions chickens produce.

A short documentary on the River Ouse, following it downstream from Lewes to Newhaven, meditating on the surrounding area.

Two surfers go on a road trip through New Zealand.

Euthanasie, la mort sur ordonnance

Explorers and amateur directors Mariana Ianovska and Viktor Posnov embark on a 40 day long trip across Umnak Island.

a documentary about crocodiles

Take a spectacular journey. It starts right here... Explore a strange and mysterious world. Explore the LAND OF THE TIGER. A rare and fascinating study of the enormous jungle cats, LAND OF THE TIGER features spectacular footage of tigers stalking their prey, caring for their young, swimming, playing... and fighting- as well as glimpses of the other animals with which the tiger shares its domain. Come as close as you dare to these wild cats in all their royal splendor as you and National Geographic journey deep into the LAND OF THE TIGER.

The Tasmanian Tiger twists and turns depending on how it's seen. Sheep-killing beast or tragic victim of human induced extinction. Ancient painting on a rock or vivid ancestor spirit. Lost forever, or a timely reminder to respect the connection between human and animal, culture, nature and country. In stunning landscapes across Australia where Thylacines once roamed, people from wide-ranging traditions share their experiences: First Nations artists, rangers and custodians; biologists, bone hunters and archaeologists. Multiple insights combine to throw light on Australia's most wanted animal.

The Scorpions belong to the oldest land-based arachnides with over 1800 different species known to exist. Usually, they do not surpass the size of 10cm in length, but exceptions are know, such as the Emperor Scorpion (Pandinus imperator) which can grow up to become over 20cm in size. Scorpions are mostly active at night and hide away during the day. Take a look into the live of these amazing creatures!

A documentary of insect life in meadows and ponds, using incredible close-ups, slow motion, and time-lapse photography. It includes bees collecting nectar, ladybugs eating mites, snails mating, spiders wrapping their catch, a scarab beetle relentlessly pushing its ball of dung uphill, endless lines of caterpillars, an underwater spider creating an air bubble to live in, and a mosquito hatching.

Resulting from an ancient volcanic eruption, revered as sacred by the Chalun and Matsun Native American Tribes as the home of the Firebird/Thunderbird (California Condor) a supernatural being of power and strength. Pinnacles represents transcendent moments, spiritual guidance and forging new timelines within interpersonal landscapes.

The life and the career of John Muir come to life through this inspiring and beautiful documentary set against the magnificent landscapes of the American West. The Scottish-born naturalist was one of the first nature preservationists in American history, inspiring others through his writing and his advocacy to keep the wilderness wild. Shot in high definition in the spectacular landscapes that shaped Muir - and were, in turn, shaped by his devotion.

Silence just might be on the verge of extinction and acoustic ecologist Gordon Hempton believes that even the most remote corners of the globe are impacted by noise pollution. In Sanctuaries of Silence, join Hempton on an immersive listening journey into Olympic National Park, one of the quietest places in North America.

A documentary that examines the issue of forced live organ harvesting from Chinese prisoners of conscience, and the response - or lack of it - around the world. It's happened before: governments killing their own citizens for their political or spiritual beliefs. But it’s never happened like this. It’s happened so often that the world doesn’t always pay attention.

Hidden deep within the Pony Pasture Rapids Park of Richmond, Virginia there lives a creature whose ancestors span back a half a billion years. This short film explores the life history of an ancient species, Fairy Shrimp, that survive in harsh habitats here and around the world.

Research is underway at Virginia Commonwealth University to uncover the secrets of a charismatic, endangered species, the Atlantic sturgeon. This short documentary follows Dr. Matt Balazik as he discovers, for the first time, the sturgeon migration using acoustic transmitter tags.

Ibogaine is a plant extract that stops drug addiction. In this documentary, a 34-year-old heroin addict undergoes ibogaine therapy with Dr Martin Polanco at the Ibogaine Association, a clinic in Rosarito, Mexico. In Gabon, where use of the iboga root is traditional, a Babongo woman's tribe uses the plant to help her recover from a depressive malaise. Director Benjamin De Loenen interviews people formerly addicted to heroin, cocaine, and methamphetamine, who share their perspectives about ibogaine treatment.

This special edition video features some of the most dangerous adventures and incredible crocodile captures that Steve and Terri Irwin have ever made.