S01 · E04
Caves
Mar 26, 200650mRating 8.3
Although often overlooked, caves are remarkable habitats with bizarre wildlife. Explore the structures created inside the earth as well as the adaptations animals have made to thrive in these environments.
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Episodes
S01 · E01
From Pole to Pole
Mar 5, 2006 · 53m
S01 · E02
Mountains
Mar 12, 2006 · 49m
S01 · E03
Fresh Water
Mar 19, 2006 · 51m
S01 · E04
Caves
Mar 26, 2006 · 50m
S01 · E05
Deserts
Apr 2, 2006 · 50m
S01 · E06
Ice Worlds
Nov 5, 2006 · 51m
S01 · E07
Great Plains
Nov 12, 2006 · 50m
S01 · E08
Jungles
Nov 19, 2006 · 51m
S01 · E09
Shallow Seas
Nov 26, 2006 · 51m
S01 · E10
Seasonal Forests
Dec 3, 2006 · 51m
S01 · E11
Ocean Deep
Dec 10, 2006 · 53m