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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彼得森國際經濟研究所統計學家格雷格·奧克萊爾（Greg Auclair）告訴BBC 事實查核稱，過去一年美國的外國投資確實有所增加。但他警告，白宮追蹤器 （White House Tracker）「包含可能不會實現的承諾」，例如歐盟貿易協議因格陵蘭緊張局勢而凍結，並在今年2月因特朗普的關稅威脅再度中止。

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5.78 x 2.78 x 0.28 inches