Season 1 · 2006
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- S1·E1 From Pole to Pole 2006-03-05
- S1·E2 Mountains 2006-03-12
- S1·E3 Fresh Water 2006-03-19
- S1·E4 Caves 2006-03-26
- S1·E5 Deserts 2006-04-02
- S1·E6 Ice Worlds 2006-11-05
- S1·E7 Great Plains 2006-11-12
- S1·E8 Jungles 2006-11-19
- S1·E9 Shallow Seas 2006-11-26
- S1·E10 Seasonal Forests 2006-12-03
- S1·E11 Ocean Deep 2006-12-10