Berhane Asfaw describes how the present-day hills in the Middle Awash don't look anything like what was there two million years ago, before tectonic earth movements tilted the layers and uplift led to erosion.
Added: Oct 1, 2009
Views: 4293 Views
Runtime: 01:42
The MythBusters answer viewer questions and respond to criticism about past episodes. (07:21:00)
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