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:post资讯

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黎智英欺詐案上訴得直:定罪及刑罰被撤銷,出獄時間提前,更多细节参见51吃瓜

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