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：tutorial资讯

Author(s): Niusha Niknahad, Obioma U. Uche

Дания захотела отказать в убежище украинцам призывного возраста09:44

网友，更多细节参见夫子

通貨膨脹迫使家庭縮減支出。米娜說，她家已不再購買品牌商品，自2017年以來也未曾出國旅行。

This article originally appeared on Engadget at https://www.engadget.com/social-media/snap-is-hosting-its-own-creator-awards-show-221859681.html?src=rss

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Universities have seen funding cuts from the government, making it harder for the 47-year-old to find the kind of work that used to be supported by grant programmes.