Journey into Amazing Caves

Breathtaking scenery highlights this 39-minute, 2001 MacGillivray Freeman IMAX documentary narrated by Liam Neeson in which spelunkers (that is, cave explorers) and scientists explore perilous, but wondrous caves in the Grand Canyon, the Mexican Yucatan peninsula, and Greenland to gather speleologic data and microorganism samples that survive in hostile environments (that is, extremeophiles) to enhance medical research.
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