BBC - Planet Earth Special Edition (Blu-ray) (2010) Part 4 Caves
Planet Earth: Special Edition
Planet Earth took the world by storm when it originally aired. It garnered uniformly glowing reviews, won four Emmy Awards, including Best Nonfiction Series and Best Cinematography, and its longevity on the best-seller list is legend. Now, with the addition of all new commentary and new bonus programs you can relive this incredible experience all over again! In this truly special, limited collector's edition, prepare to be overwhelmed again by the beauty and majesty of Planet Earth. This special edition of the greatest natural history series ever made, Released in 2010, features all episodes from the original series, the Planet Earth team's video diaries, and the breathtaking highlights package of the series' Greatest Moments
Part 4: Caves
The Cave of Swallows in Mexico is a 400m vertical shaft, deep enough to engulf the Empire State Building. The Lechuguilla cave system in the USA is 193km long and 500m deep with astonishing crystal formations hanging from its chambers. Although often overlooked, caves are remarkable habitats with equally bizarre wildlife. Cave angel fish cling to the walls behind cave waterfalls with microscopic hooks on their flattened fins. Cave swiftlets navigate by echo-location and build nests out of saliva. The Texas cave salamander has neither eyes nor pigment. Unique access to a hidden world of stalactites, stalagmites, snotites and troglodytes brings a wealth of surprises.
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