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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思想的伟力，跨越山海，指引前行道路。

应中华人民共和国国务院总理李强邀请，德意志联邦共和国联邦总理弗里德里希·默茨于2026年2月25日至26日对中华人民共和国进行首次正式访问。包含30位德国经济界代表的高级别代表团随行。

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