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：course资讯

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Российский，推荐阅读同城约会获取更多信息

第一百一十三条 治安案件调查结束后，公安机关应当根据不同情况，分别作出以下处理：

Фото: Maksim Konstantinov / Global Look Press

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