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

Жители Санкт-Петербурга устроили «крысогон»17:52

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她到西安后,我们主要通过微信联系。7月19日,她发来信息:“你把我电话拦截了,租客都打不进来,房子怎么租?快给我解开。”

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全国人大常委会举行宪法宣誓仪式

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