The pups, his new brothers and sisters, showered him with affection, but 21 seemed tense, pacing back and forth across Rick’s scope. Finally the wolf found what he was looking for: a troubled pup that he had recently taken an interest in. There was usually one pup who held the lowest rank in a litter’s pecking order, but this pup was different; he had some physical problem that held him back. Rick couldn’t tell exactly what was wrong with him, though his littermates clearly recognized that he was different and shunned him. But 21 seemed to have empathy for the pup, the way a dog seems to know
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