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Horizon - Season 40 - Episode 10 - The Secret Life Of Caves

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Watch Series: Horizon Released in (1964) - Season 40 - Episode 10 ,airing date 2003-04-03 produced by UK, The TV Series categorized in Documentary, and content rating TV-PG with duration 60 min broadcasted as these networks BBC Two, Streamed at Putlocker & directed by Stuart Harris, Nikki Stockley, Peter Leonard. Set against the back drop of awe inspiring geological beauty, a strange scientific adventure sets out to discover how a mineral clad cave network - the height of a 30 storey building and the length of six football fields - came to exist deep below the Guadalupe Mountains in North America. But this journey soon unravels a multitude of inexplicable phenomena and obscure geological formations, leading to the discovery of extreme rock-eating microbes - a testimony from primordial Earth and a glimpse of life elsewhere in the Solar System. Geologists believed that all limestone caves were formed by rain and underground water percolating through cracks in the rocks. Absorbing carbon dioxide from the soil, this water becomes weak carbonic acid, nibbling away at limestone, etching out networks of subterranean caves.

Genre: Documentary

Actor: Paul Vaughan, Jack Fortune, Dilly Barlow, Martin Jarvis, Ian Holm, Bernard Hill, Steven Mackintosh, Andrew Sachs, John Shrapnel, Helen McCrory