O-Six lunged again and again, as White Line, weakened by months of poor feeding, struggled to fend her off. She was losing badly but refused to retreat. Suddenly she buckled under her attacker, exposing her flank, and O-Six sank her inch-long canines deep into her opponent’s leg. Moments later White Line, bleeding profusely, simply stopped fighting. As if by some unspoken agreement, O-Six sensed the contest was over, too, and stood and watched as her defeated opponent limped off into the woods alone, looking for a suitable place to die.