The dog represents racism. The dog is being described as being just a dangerous dead as it is alive just as racism is in the town.
Karana was a skilled warrior. In her story, it is said that she set wooden traps within a small closed arena. She made the arena by placing large logs deep into the snow of the ground. She blew into a rams horn to awaken the wolves, which then ran wildly in the enclosure until all of them were caught within the traps. I hope this helps.
She should change bad to worse
