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The first in-depth televised investigation documenting an explosion of recent discoveries, nova's three-part special, Becoming Human: Unearthing Our Earliest Ancestors, examines what the latest... 03:02
Our most distant primate ancestors were tree-dwellers the size of mice. 13:36
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
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