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.

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我问他聊了什么。他说,也没什么,无非是孩子、工作、家庭,反正翻来覆去都是这些。

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(四)怀孕或者哺乳自己不满一周岁婴儿的。