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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Sam Altman would like to remind you that humans use a lot of energy, too。业内人士推荐51吃瓜作为进阶阅读

Hebrew Paseq: a non-obvious finding，详情可参考搜狗输入法下载

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