planet-earth

53m
Episode 1
From Pole to Pole
A pole-to-pole survey of the planet's habitats and the animals shaped by them, and of how a changing climate is reshaping those environments.
49m
Episode 2
Mountains
Tectonic drift, volcanoes and erosion build the world's mountains. Gelada baboons in Ethiopia, pumas in the Andes, grizzlies in the Rockies, snow leopards in the Himalaya.
51m
Episode 3
Fresh Water
Fresh water is 3 percent of the planet's supply and nearly all of life for non-marine species — the rivers, lakes and swamps where animals drink, hunt and breed.
50m
Episode 4
Caves
Inside the Earth, water carves out chambers and formations over millennia, and the animals living in permanent darkness adapt to them.
50m
Episode 5
Deserts
Deserts cover about 30 percent of the land surface and vary more than any other ecosystem. A look at their conditions and the animals built to survive them.
51m
Episode 6
Ice Worlds
Life in the Arctic and the Antarctic, where the terrain and the swing of the seasons set the terms for every animal that lives there.
50m
Episode 7
Great Plains
Grasses hold the savanna, steppe, tundra and prairie together and feed the largest concentrations of animal life, including 1.5 billion red-billed queleas over Africa.
51m
Episode 8
Jungles
Jungles cover roughly 3 percent of the planet and hold half of its species — a look at the plants and animals packed into that space.
51m
Episode 9
Shallow Seas
Shallow seas are 8 percent of the surface and the richest marine habitat, from plankton and reef-building coral to sea snakes, seals, dolphins and whales.
51m
Episode 10
Seasonal Forests
Seasonal forests are the largest land habitat, from the taiga of the Arctic north to California's sequoias, and they run on a hard annual cycle of growth and dormancy.
53m
Episode 11
Ocean Deep
The open ocean and the dark water beneath it, down to 2,000 meters, and the species that live where sunlight never reaches.