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Move over Evian. While filming "Ice Age Death Trap," the excavation team had some fun and quenched their thirst in an unusual way—by drinking water trapped in ancient mastodon and bison bones.... 01:00
Our most distant primate ancestors were tree-dwellers the size of mice. 13:36
Archaeologist John Shea demonstrates the construction of a primitive spear. 04:32
Full Program: First Steps: 6 million years ago, what set our ancestors on the path from ape to human? 51:28
NOVA investigates explosive new discoveries that are transforming the picture of how we became human. 00:33