See video and photographs of cave ecosystems in TIDES:

Cenotes

Images of caves on TIDES

Related links:
Biology of caves (National Park Service)
Biospeleology: the biology of caves, karst and groundwater (Texas Natural Science Center, University of Texas and Missouri Dept. of Conservation)
Cave articles (National Geographic)
Cave formation: animation (Earth Explorations)
Caves and Karst (Teachers' Domain (free registration required))
Edwards Aquifer Website (Gregg Eckhardt)
Overview of Texas caves & karst (Texas Speleological Survey)
Subterranean conservation (Nature Conservancy)
Texas cave critters (Texas Entomology)


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