[lit-ideas] anthropology?

 
_http://news.yahoo.com/s/ap/20060112/ap_on_sc/south_africa_ancient_mystery;_yl
t=AvhyWWykPtpozcg_PGWTjsMDW7oF;_ylu=X3oDMTBiMW04NW9mBHNlYwMlJVRPUCUl_ 
(http://news.yahoo.com/s/ap/20060112/ap_on_sc/south_africa_ancient_mystery;_ylt=AvhyWW
ykPtpozcg_PGWTjsMDW7oF;_ylu=X3oDMTBiMW04NW9mBHNlYwMlJVRPUCUl)  
This portion grabbed my curiosity -- in what way (anthropologists out there?) 
 does the fact (?) that humans used to be vulnerable to both above and below  
explain anything about why or how "we" view the world?   
<<Berger concluded man's ancestors had to survive not just being hunted  from 
the ground, but from the air. Such discoveries are "key to understanding  why 
we humans today view the world they way we do," he said. 
Berger's research has been reviewed by others and is due to appear in the  
February edition of the American Journal of Physical  Anthropology.>>

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