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weapons, and are relied upon rather than the teeth. The heavy- 

 weight of the orang makes it a less efficient climber than is the gib- 

 bon; and its mode of climbing is much more deliberate and man-like. 

 It builds its nest in trees by breaking off branches and arranging 



Fig. 195. — The Orang-utang, Simia salyrus, sitting in its nest. (From Weysse, 

 after Shipley and McBride.) 



them platform-fashion in the crotch where two large limbs meet. 

 The orang appears to be the only purely herbivorous member of the 

 apes; its diet consists exclusively of fruits. On the ground it runs 

 on all fours in an awkward and ineffective way. Its intelligence 

 has been experimentally shown to be greater than that of any other 

 creature except Man. 



