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:dev资讯

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圖像加註文字,民主派社運人士郭鳳儀是34名被香港國安警通緝的人士之一。Article InformationAuthor, 郭悠(Koh Ewe)

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