PHOTOS: Oldest "Human" Skeleton Refutes "Missing Link"

Ardipithecus
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Today, the Middle Awash research area (pictured) where Ardipithecus was found is a parched desert. When the species lived 4.4 million years ago, the landscape was radically different: a moist, cool woodland with patches of thicker forest.

Geological faulting and erosion over millennia brought the bones to within reach of the excavation team.

Read more about Ardi >>
—Photograph courtesy Dr. Tim White
 
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