In the International Year of Caves and Karst, Brazilian caves are at high risk (Commentary)
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/https%3A%2F%2Ftf-cmsv2-smithsonianmag-media.s3.amazonaws.com%2Ffiler%2F65%2F83%2F65837b11-726a-406e-93f7-e4eb744f22e8%2F01-cavedwellers-matera.jpg "How Matera Went From Ancient Civilization to Slum to a Hidden Gem | Travel| Smithsonian Magazine")
How Matera Went From Ancient Civilization to Slum to a Hidden Gem | Travel| Smithsonian Magazine
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World's largest cave fish discovered in India | National Geographic
Kentucky's Cave Country : Half a Hundred Acre Wood
Cave Life of Oklahoma and Arkansas: Exploration and Conservation of Subterranean Biodiversity (Volume 10) (Animal Natural History Series): Graening, G.O., Fenolio, Dante B., Slay, Michael E.: 9780806144245: Amazon.com: Books
The Conservation of Cave 85 at the Mogao Grottoes, Dunhuang: A Collaborative Project of the Getty Conservation Institute and the Dunhuang Academy: Wong, Lori, Agnew, Neville: 9781606061572: Amazon.com: Books
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In the International Year of Caves and Karst, Brazilian caves are at high risk (Commentary)
