Karst ecologist Mike Slay goes to great depths to preserve cave habitats from pressures above and below. Jorge Ribas follows him deep underground.
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Earth: Caves Saved from Above
Karst ecologist Mike Slay goes to great depths to preserve cave habitats from pressures above and below. Jorge Ribas follows him deep underground.
Added: Nov 3, 2008
Views: 17373 Views
Runtime: 03:14
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