When temperatures drop in Montana, wild bison migrate to lower elevations outside the boundaries of Yellowstone National Park. But once outside, they run the risk of being killed because some carry a chronic disease called brucellosis that ranchers fear could spread to cattle.
When temperatures drop in Montana, wild bison migrate to lower elevations outside the boundaries of Yellowstone National Park. But once outside, they run the risk of being killed because some carry a chronic disease called brucellosis that ranchers fear could spread to cattle.
2014-08-25
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Provides, through onsite study and observations of a young biologist, an introduction to the life cycle and habitat of the blue heron. Shows its cycles of migration, reproduction and growth and obstacle to survival.
In September 1954, David Attenborough, cameraman Charles Lagus, Jack Lester and Alf Woods, both from the Zoological Society of London, set out for Sierra Leone. They spent three months intently surveying the landscapes of Sierra Leone in search of nature’s rarest animals. Although predominantly searching for Picathartes gymnocephalus (the White-necked Rockfowl) they hoped to take back to London a representative collection of the whole of animal life in this part of Africa.
Bas Jan Ader hangs from the branch of a tall tree, until he loses his grip and falls into a river below.
In 2009, the underwater world around the Central Polynesian Sporades in the eastern Pacific was intact. But a few years later, the corals died massively. Now they have recovered.
Cuba's enforced isolation has resulted in the unlikeliest of marine reserves: a huge, rambling archipelago known as Jardines de la Reina, or "Gardens of the Queen." Stretching around 140 miles along the southern coast of Cuba, it's one of the longest barrier reef systems in the world. Get an up-close look at Fidel Castro's diving playground, a forgotten ocean paradise unseen for half a century, and witness exotic species rarely seen elsewhere in the region. It's the lost jewel of the Caribbean, but how long can this pristine wilderness survive?
Mackinac Island, Michigan, is a tiny island in the center of the Great Lakes. Besides being a world favorite "Horse Drawn" and "Victorian Era" summer destination, the island holds another treasure few have ever seen: its wild, magical and beautiful winters. The 72-minute film Ice Bridge follows islanders' unique and quirky lifestyle throughout an entire year while tracing the formation of the spectacular phenomenon known as the "ice bridge" (a three-mile span of ice that allows islanders to cross to the mainland).
In a time of hardship, Hobart resident Peter Walsh turns to the secretive platypus for solace, only to discover it is the platypus that need his help to survive in a habitat under threat.
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.
Sir David Attenborough narrates a documentary about the Kea, the world's only alpine parrot. Playful and destructive, it attacks cars, starts landslides and terrorises New Zealand ski resorts but behind the bad behaviour there's a sharp mind at work. David tries to play chess with a kea and discovers how its cheeky character is the key to its survival.
In this fascinating program, learn about one of the most feared and respected members of the animal kingdom – Bears! See a side of these magnificent animals that few rarely see – a bear ripping apart a log; cubs playfully exploring the treetops; a grizzly bear tracking his prey. From the Black Bears of the Great Smoky Mountains, Sequoia and Yosemite, to the Grizzlies of Yellowstone and Glacier, America’s national parks contain the last safe havens of bear habitat in the lower 48 states. Bear expert Gary Brown tells of fascinating bear facts and explains the challenges facing both bear and man to co-exist.
It is with an old bus an about thirty snakes that Franz Florez struggles for the preservation of nature in Colombia, one of the most environmentally diverse country in the world. His snakes are his pass to enter the deep jungle, where guerrillas fight the regular army and where narco-traffickers meet coca growers. Facing the threat of the industrial exploitation of these preserved areas, he tries to gather support among the population, including the armed actors.
For more than 20 years, Maurice & Katia Krafft have traveled the world. From Iceland to Hawaii, from Africa to Indonesia, they are usually the first to reach the scene of an eruption. Join them as they risk their lives to document the birth of a volcano.
The story of two female conservationists fighting against time to save the endangered and elusive Giant Burrowing Frogs in regional Victoria.