Mary Brown's dog symbolizes the child in a way the police can get away with the killing even if the child or citizens are innocent. 
The police showing no remorse about killing an innocent life of the dog/child demonstrates the corruption of the environment there.
        
             
        
        
        
Based on the conclusion of "The Raven and the First Men: The Beginnings of the Haida,” the reader can infer that the Haida people value family due to the actions of t<span>he daughter toward the baby.
I'm not sure if this is the answer you were looking for, since you didn't provide any options.</span>