1. Pole to Pole

David Attenborough narrates this unique view of the planet from north to south.

2. Mountains

Animals that have adapted to the special survival challenges of high-altitude life are featured.

3. Fresh Water

Animals featured include snow geese, swimming monkeys, giant salamanders and river dolphins.

4. Caves

Cave systems around the world are home to geologic features and animals that remain largely unknown.

5. Deserts

A tour of deserts features camels in the Gobi, guanacos in the Atacama and a bloom in Death Valley.

6. Ice Worlds

Animals living at the poles are featured, including killer whales, polar bears and emperor penguins.

7. Great Plains

The earth's extensive grasslands are featured, including the Sahel in Africa and the Asian steppes.

8. Forests

Plants take center stage in this exploration of coniferous and deciduous forests.

9. Jungles

Among the rain-forest animals featured are jaguars, gibbons and flying frogs.

10. Shallow Seas

Spectacular storm photography is among the highlights of this exploration of the shallow seas.

11. Deep Ocean

Animals featured include blue whales, vampire squid, dolphins, manta rays, lanternfish and tuna.

12. The Making of Planet Earth

The making of the sprawling, ambitious series is documented.