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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此前据环球网2月4日报道，美国司法部近日公布的超300万页爱泼斯坦案相关文件显示，已故性犯罪者爱泼斯坦声称帮助已故英国物理学家霍金圆了潜水梦。爱泼斯坦称：“当霍金来到我的岛上，说他梦想去潜水时，我用胶带把他的头绑在一把高背椅上，把他装进了一艘私人潜水艇，太好玩了。”（中国青年网青蜂侠Bee、第一财经）

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Michael has since apologized for both incidents, took a brief detour as a SPAC CEO, yet found himself back in Washington when Donald Trump tapped him in December 2024 to become undersecretary of defense for research and engineering—effectively the Pentagon’s chief technology officer. The Senate confirmed him in 2025, installing a Silicon Valley–trained business executive at the center of how the War Department thinks about AI, autonomy, and advanced weapons systems.