Madagascar or the Great Carnival of the Cameleons

The courtship behavior of Great Bustards is studied. The male Great Bustard is considerably larger than the female. This impression is reinforced during courtship when the male dances in front of the female, showing the light undersides of its wings and inflating its throat pouch.

What strange forces saved one isolated section along the Upper Mississippi River from the repeated crushing and scouring effects of glaciers during the last two million years? And what pre-Ice Age throwbacks survived here in this unique geologic refuge that holds more Native American effigy mounds, petroglyph caves, strange geological features, and rare species than anywhere in the Midwest? These questions and more are answered in this captivating new documentary. A team of scientists embarks on a journey of exploration to expose both the science and threats behind three unique features of the zone - rare plants and animals, odd geological phenomenon, and striking remnants of a Native American pilgrimage like no other.

These Birds Were Made For Walking Few things are more wondrous than the gift of flight, but some birds have chosen to give it up – the question is, why? Whether it is to save energy, tap into new food resources, or invest in other skills, they all have their reasons.

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

The city of Rostock is planning to expand the harbour by 660 hectares in the coming years. While measures to restore moors are being implemented throughout Europe, Rostock is planning to destroy an intact moor area. This affects the swamp of the Peezer Bach and surrounding natural areas, which make important contributions to the climate and biodiversity. MOOR CITY HARBOUR is about the value and beauty of a native moor, as well as the severity of its loss.

A look at the state of the global environment including visionary and practical solutions for restoring the planet's ecosystems. Featuring ongoing dialogues of experts from all over the world, including former Soviet Prime Minister Mikhail Gorbachev, renowned scientist Stephen Hawking, former head of the CIA R. James Woolse

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?