研究结果发表于《儿科学》（Pediatrics），并迅速引发关注：在20世纪90年代中期，女孩乳房发育的平均起始年龄已提前至约10岁，比此前医学文献中的记录早了一年多。而且，这一变化在不同族群中表现出明显差异——白人女孩乳房发育的平均起始年龄约为9.96岁，非裔女孩则进一步提前至8.87岁。
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If you’ll recall, OpenAI announced that it reached an agreement shortly after it came out that Anthropic was having issues with the agency. Its CEO, Sam Altman, said on Twitter that he told the government Anthropic shouldn’t be designated as a supply chain risk. He said during an AMA on the social media website that he didn’t know the details of Anthropic’s contract, but if it had been the same with the one OpenAI had signed, he thought Anthropic should have agreed to it. Anthropic’s Claude chatbot rose to the top of Apple’s Top Free Apps leaderboard after OpenAI announced its Defense Department contract, beating out ChatGPT.