Dogs act like toddlers when you need help - but cats just watch. Scientists compared 3 groups: pet dogs, cats, and human toddlers in an experiment where a human parent hides and pretends to look for an object. 75% of dogs and children helped. Cats only helped if it was in their personal interest.

· · 来源:map资讯

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Трамп высказался о непростом решении по Ирану09:14

A01头版快连下载安装对此有专业解读

63-летняя Деми Мур вышла в свет с неожиданной стрижкой17:54

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“到时候”是什么时候?不早点把“火”烧起来,怎么出政绩?带着一连串问号,大家都在拭目以待。