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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圖像加註文字，特朗普誓言將推動醫療價格透明化，並終結「處方藥價格瘋狂上漲」的問題。他譏諷前任總統們「光說不練」，強調自己將採取實際行動解決醫療負擔。分析：特朗普發出愛國號召，卻面臨政治逆風