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“But it really wasn't until three to four years later, when we had an opportunity in the lab to make very detailed observations, and comparisons with other fossil discoveries, that we realized she was a new species of human ancestor.”
 
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Author details
 
 
Donald Johanson
 
Nationality:   American
 
Date of Birth:   Jun 28, 1943
 
Profession:   Scientist
 
 
 
 
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