The highest mountain range in the world, the Himalayan range is far reaching, spanning thousands of miles, and holds within it an exceptionally diverse ecology. Coniferous and subtropical forests, wetlands, and montane grasslands are as much a part of this world as the inhospitable, frozen mountaintops that tower above. The word Himalaya is Sanskrit for abode of snow, fitting for a stretch of land that houses the world’s largest non polar ice masses. Extensive glacial networks feed Asia's major rivers including the Ganges, Indus, and Brahmaputra. More than a billion people rely on these glacier-fed water sources for drinking water and agriculture. The Himalayas are not only a remarkable expanse of natural beauty. They're also crucial for our survival.

This astounding documentary delves into the mysteries of the Tunguska event – one of the largest cosmic disasters in the history of civilisation. At 7.15 am, on 30th June 1908, a giant fireball, as bright the sun, exploded in the sky over Tunguska in central Siberia. Its force was equivalent to twenty million tonnes of TNT, and a thousand times greater than that of the atomic bomb dropped on Hiroshima in 1945. An estimated sixty million trees were felled over an area of over two thousand square kilometres - an area over half the size of Rhode Island. If the explosion had occurred over London or Paris, hundreds of thousands of people would have been killed.

Every year, on the steppes of the Serengeti, the most spectacular migration of animals on our planet: Around two million wildebeest, Burchell's zebra and Thomson's gazelles begin their tour of nearly 2,000 miles across the almost treeless savannah. For the first time, a documentary captures stunning footage in the midst of this demanding journey. The documentary starts at the beginning of the year, when more than two million animals gather in the shadow of the volcanoes on the southern edge of the Serengeti in order to birth their offspring. In just two weeks, the animal herd's population has increased by one third, and after only two days, the calves can already run as fast as the adults The young wildebeest in this phase of their life are the most vulnerable to attacks by lions, cheetahs, leopards or hyenas. The film then follows the survivors of these attacks through the next three months on their incredible journey, a trip so long that 200,000 wildebeest will not reach the end.

Ducks are true originals. There are more than 120 different species of ducks in all, a fantastical group of complex characters. Ducks have a talent for survival, and life stories filled with personality and charm. Each bird is more fun than the last, and will leave you wanting more.

Although first glance reveals little more than stones and sand, the desert is alive. Witness moving rocks, spitting mud pots, gorgeous flowers and the never-ending battle for survival between desert creatures of every shape, size and description.

Eugen Schuhmacher focuses on endangered and rare animal species such as the European bison and the Northern bald ibis as well as the general fauna of the diverse and species-rich continent of Europe. The need to protect nature and animals is made impressively clear through the power of images.

Drawing from never-before-seen footage that has been tucked away in the National Geographic archives, director Brett Morgen tells the story of Jane Goodall, a woman whose chimpanzee research revolutionized our understanding of the natural world.

This documentary follows the harsh and competitive life of Addo, a male lion born into a successful pride.

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Scientists have discovered and investigate the reason behind the behavior of sharks swimming around in gangs even though they are viewed as solitary predators.

Crazy cat lady or world-class musician? You decide. Dorian Rence smashes our notions of what matters and who counts in "Feral Love." Dorian was the seventh woman to join the New York Philharmonic. In her 40-year career she has performed with all the greats: Leonard Bernstein, Pierre Boulez, Zubin Mehta, Yo Yo Ma to name a few. And she cares for a feral cat colony in the tunnels of New York City.

Wild rabbits share the sea cliffs on the island of Skomer, off the Pembrokeshire coast, with seabirds like puffins and seagulls. They come in many shades, owing to their intriguing history, and each spring the island of Skomer itself is transformed by wild flowers, creating one of Britain's most beautiful natural spectacles. The green and brown island turns blue and pink for a couple of spectacular weeks under a carpet of bluebells and red campion.

A devoted pair of little owls set up home in an old orchard in rural Herefordshire. From spring blossom to autumn apples, a year in the life of the parent birds, their baby owls and the old fruit trees.

Wildlife cameraman Gordon Buchanan travels to the frozen north, deep inside the Arctic Circle, to meet the ancient Sami people and the animals they hold so close - reindeer.

People go and search for the legendary Bigfoot creature.

Two otters, a mother and daughter, are inseparable as the cub faces the dangers of her first Scottish winter, and Mum works hard to ensure both survive. Never more than a few feet apart, cub and mum exhibit a very special relationship as the cub grows up, learning how to fish and fend for herself on the idyllic west coast of Scotland.

A documentary on Al Gore's campaign to make the issue of global warming a recognized problem worldwide.

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An ode to the Florida Everglades, past and present, told through the prescient writings of Marjory Stoneman Douglas and those who today call the region home.

High up on the Tibetan plateau. Amongst unexplored and inaccessible valleys lies one of the last sanctuaries of the wild world, where rare and undiscovered fauna lives. Vincent Munier, one of the world’s most renowned wildlife photographers takes the adventurer and novelist Sylvain Tesson (In the Forest of Siberia) with him on his latest mission. For several weeks, they’ll explore these valleys searching for unique animals and try to spot the snow leopard, one of the rarest and most difficult big cats to approach.