Scientists find surprising methane-based ecosystem in underwater Yucatan caves
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Ecography - Wiley Online Library
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Known for its Own Ecosystem and Weather Type, World's Largest Cave in Vietnam Sees Surge in Tourists - News18
Microbial ecology of tourist Paleolithic caves - ScienceDirect
Cave Cleanup
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Cave Ecology - Jut Wynne
New insights into the structure, microbial diversity and ecology of yellow biofilms in a Paleolithic rock art cave (Pindal Cave, Asturias, Spain) - ScienceDirect