Mr. Beaver:
        
        
          The tunnel leads to an inside chamber.
        
        
          We ensure that this chamber is above the water level.
        
        
          Our family lives in this dry, secure chamber. Sometimes
        
        
          we build two-storey houses, in which the entrance and
        
        
          living room are on the first floor, and the dining room and
        
        
          bedroom on the second. The houses we build have two
        
        
          underwater entrances and a ventilation channel on the
        
        
          top. In this way, besides being secure from exterior
        
        
          dangers, we also live in comfort.
        
        
          Karim:
        
        
          This is a marvellous thing. It does not appear
        
        
          to have a lodge beneath; it looks as if it is merely a pile of
        
        
          logs and branches. This is surely a remarkable
        
        
          arrangement. I have another question: what is the depth
        
        
          of this pond? From here it looks quite deep.
        
        
          Mr. Beaver:
        
        
          It is sometimes as deep as 3 or 4
        
        
          metres. Actually, we don’t need such deep water to build
        
        
          42
        
        
          You must be
        
        
          asking
        
        
          yourself,
        
        
          “What is this
        
        
          pile of
        
        
          branches in
        
        
          the water for?”
        
        
          This picture
        
        
          shows the part
        
        
          of a beaver’s
        
        
          house, which
        
        
          is above the
        
        
          surface of the
        
        
          water.