March 5, 2006 • 53m
A global tour examining the behaviors of animals and revealing the effects of climate change on their environments.
March 12, 2006 • 49m
An exploration of the world's major mountain ranges and the habitats they create.
March 19, 2006 • 51m
Although merely 3% of water on earth, fresh water plays an important part in the planet's weather and erosion. It is immensely imp...Read more
March 26, 2006 • 50m
Although often overlooked, caves are remarkable habitats with bizarre wildlife. Explore the structures created inside the earth as...Read more
April 2, 2006 • 50m
Despite the lack of rain, deserts are the most varied of our ecosystems. In fact, about thirty percent of the earth's land surface...Read more
November 5, 2006 • 51m
Experience life in the most hostile corners of the planet by exploring the terrain, seasons, and animals of the Arctic and Antarctic.
November 12, 2006 • 50m
This episode deals with savanna, steppe, tundra, prairie, and looks at the importance and resilience of grasses in such treeless e...Read more
November 19, 2006 • 51m
Jungles cover roughly three percent of our planet yet contain fifty percent of the world's species. Experience the countless flora...Read more
November 26, 2006 • 51m
A look at the shallow seas of the earth, from coral reefs to kelp forests and beyond.
December 3, 2006 • 51m
Trees are Earth's largest organisms and are also one of the planet's oldest inhabitants. Seasonal forests (unlike tropical rain-fo...Read more
December 10, 2006 • 53m
An exploration of the deepest, darkest realms of the ocean, spanning countless species to a depth of 2,000 meters.