25
        
        
          Mr. Beaver:
        
        
          Yes, Karim. Soon I’ll tell you in detail
        
        
          about the home we are building. You, too, will learn that
        
        
          it is not possible for us to do such a thing just by using
        
        
          our own intelligence.
        
        
          Karim listens to Mr. Beaver and Imran carefully,
        
        
          because he is aware of the importance of this
        
        
          conversation. So he decides to concentrate on what
        
        
          they say and to ask about things he is eager to learn.
        
        
          Karim:
        
        
          Mr. Beaver, I guess you use your paws and
        
        
          teeth to fell trees so as to form this pond. But how come
        
        
          your teeth are so strong? My teeth, for example, would
        
        
          break if I attempted to bite off a branch. I could never do
        
        
          that.
        
        
          Mr. Beaver:
        
        
          Good question
        
        
          Karim. My wife and I can cut down
        
        
          about 400 trees in a year. We do
        
        
          this by gnawing with our teeth.
        
        
          We use the four front teeth to
        
        
          gnaw tree branches. Our teeth
        
        
          also, wear down not though as