Only few big cats have been as intensively studied as lions. We thought we knew everything about them. Yet some parts of their lives kept hidden in the dark. Cameras follow two prides and their respective females by day and by night, revealing astonishing behavioral patterns of Africa's largest lions. Symbols of courage and power, lions have been intensively researched for many decades. While hardly a single facet of their lives has gone unnoticed, certain things have remained hidden. Thanks to thermal imaging cameras, this two-part series reveals the last secrets of Africa's largest wild cats. We follow two prides in Southern Kenya and their respective females by day and by night, discovering astonishing behavioral patterns. Lean times face the animals as the huge wildebeest herds, which, until now have supplied the young families with ample food, are migrating south to the Serengeti. We will watch the daily struggle for survival as these mothers risk everything in order to rear ...

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.

Nature cinematography combined with Panu Aaltio's music.

This nature film closely observes wolves through late winter into early spring. Wolf Pack shows this creature’s character, behaviour and life cycle. What emerges is a portrait of the wolf as a disciplined hunter, respected leader and committed parent.

In this special documentary that inspired a two-season television series, scientists and other experts speculate about what the Earth, animal life, and plant life might be like if, suddenly, humanity no longer existed, as well as the effect humanity's disappearance might have on the artificial aspects of civilization.

With Olin's 85-year-old father as guide, we experience Norway's most adventurous valley, Oldedalen in Nordfjord. He grew up here, and here generations before him have lived in balance with nature.

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.

By land, by air, and by sea, viewers can now experience the struggle that millions of creatures endure in the name of migration as wildlife photographers show just how deeply survival instincts have become ingrained into to the animals of planet Earth. From the monarch butterflies that swarm the highlands of Mexico to the birds who navigate by the stars and the millions of red crabs who make the perilous land journey across Christmas Island, this release offers a look at animal instinct in it's purest form.

From polar bears in the arctic tundra to black bears in the Northern Rockies, you'll see some of the most spectacular footage ever shot of these enterprising omnivores. Catch salmon with a group of hungry grizzlies on the McNeil River in Alaska. Crawl inside a den with a mother black bear and her cubs. Learn about the challenges facing each of these species as their habitat diminishes.

Have you ever wanted to take a year traveling the globe? 10-year-old Unai and his family do just that on an extraordinary mission to photograph an endangered animal on each continent in its natural environment. A documentary made by nature photographer Andoni Canela with his family is narrated by his young son who shares his experiences and observations as they camp in jungles, deserts, and glaciers in search of wolves, elephants, lions, bison, penguins, hornbills and crocodiles. Seen through the boy's eyes, their journey across all continents conveys an innocent and unconditional love of nature and reveals an urgency to protect the delicate diversity of our planet's wildlife. Breathtaking cinematography and an insider's view on the daily life of a professional photographer on assignment enhance the documentary's story of a family learning, playing, and living on a trip of a lifetime together.

Take a four-minute journey to some of the planet’s most spectacular glaciers, waterfalls, beaches, rivers and waterways. Destinations include, Iceland, Igauzu Falls Brazil, Atchafalaya Basin Louisiana, Lake Tahoe California, Black Canyon of the Gunnison Colorado, and Punta Cana, Dominican Republic.

For her entire professional life, renowned ecologist Nalini Nadkarni pioneered climbing techniques to study "what grows back” after an ecological disturbance in the rainforest canopy. Now, after surviving a life-threatening fall from a tree, she must turn her research question onto herself in order to understand the effects of disturbance and recovery throughout her life.

This short film follows an intoxicated character's journey through the mystery, beauty and eeriness of his environment.

In this critical investigation into the most arresting victims of the climate emergency, biologist Ella Al-Shamahi joins a specialist autopsy into the death of a 40-foot sei whale, which washed up near Edinburgh. Across the 90-minute single doc, Ella sets out to uncover why whales are dying in record numbers and whether or not the crisis is man-made.

Is wilderness more valuable than money? It depends on who you ask. Loon is a through hiking naturalist who understands what’s truly valuable in life. At 80 years old with more than 2,000 acres of wilderness to his name, he must decide what to do with this precious asset.

We have volunteered for the Earth Conservation Corps to restore the Anacostia river and the Washington wasteland where we live and often meet an early violent death. We are striving to return our nation's bird,the bald eagle, to our Nation's Capitol. If the eagles survive maybe we can too. We began filming this documentary in 1992 to show people our America. "Endangered Species" is our story. - Written by Antoine Woods

In Guangdong Yangchun, a large number of villagers have been suffering from strokes and cancers after some dangerous heavy metal waste has been illegally discharged in the villages. Artist Nut Brother decides to take action. With his team, he creates a group of Heavy Metal music and plays at sites that have been poluted by heavy metals to raise awareness among the population.

In this documentary produced by the BBC, Sir David Attenborough leads us through an examination of the lives of two leopards living in Zambia’s Luangwa Valley.

Latest research shows the humpback whales’ song to be a weapon used in verbal exchanges between bulls fighting over females. These battles can sometimes turn physical, sometimes endangering mothers with vulnerable calves.