在成为了一名科学家之后，他选择了继续和狼群呆上几年研究他们行为模式，这些是狗狗已经丧失了的行为特征。
Having become a scientist he decided to stay with wolves for a couple of years to understand their mode of behavior as dogs lost many behavioral features.
在成为了一名科学家之后，他选择了继续和狼群呆上几年研究他们行为模式，这些是狗狗已经丧失了的行为特征。
Having become a scientist he decided to stay with wolves for a couple of years to understand their mode of behavior as dogs lost many behavioral features.
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