Walking with Dinosaurs: Prehistoric Planet 3D

Two journalists traverse the Grand Canyon by foot, hoping this 750-mile walk will help them better understand one of America's most revered...

The grasslands of Africa are a banquet spread for feline predators. Explore the hunting and nurturing habits of lions, leopards, and cheetahs of the...

This documentary examines the threatened habitats and the three great predators: the jaguar, the leopard and the cheetah, of the great South American...

A dive inside a wild land where nature hides some of her greatest secrets: The Alps. Steep slopes, wind swept cutting edge rocks. An air desperately...

The Farmer is abducted by a capering Jungle Goddess. As pre-Code as a Terrytoon ever got. Most animation is by Frank Moser; with him are Art Babbitt,...

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...

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...

The long running, often bitter scientific debate over the origin of birds and the evolution of flight.

See the world's first MRI scan of a great white shark as Ultimate Shark reveals the extreme engineering and predatory abilities of one of nature's...

Peter Gimbel and a team of photographers set out on an expedition to find and film, for the very first time, Carcharodon carcharias—the Great...