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NOVA | Promotion | Ice Age Death Trap Preview

In the Rocky Mountains, archeologists uncover a unique fossil site packed with astonishingly well-preserved bones of mammoths, mastodons, and other giant extinct beasts. The discovery opens a highly focused window on the vanished world of the Ice Age in North America.

S39 E5 | 0:00:30 | AIRED: 1/3/2012 |
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