 
          Without any guidance, a crow named Betty, being studied in
        
        
          the laboratory of Oxford University, bent a thin metal rod into a
        
        
          shape that she could use as a tool. When she couldn’t reach
        
        
          food at the bottom of a container with her beak, the crow bent
        
        
          the end of a piece of wire she found in the laboratory into a
        
        
          hook. Betty understood that the wire, an object she had never
        
        
          seen before, would be useful because of its size and flexibility.
        
        
          She also succeeded in bending the flexible wire in a way that
        
        
          suited her purpose. Scientists pointed out that in spite of her
        
        
          smaller brain, Betty demonstrated a level of intelligence higher
        
        
          than chimpanzees.
        
        
        
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