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《新科学家》 第3603期 · 2026年7月11日 · 中文解读

大脑为何变大?

Not so special · Michael Marshall
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这篇讲什么
一项对化石头骨的新分析表明,在过去200万年的人类进化中,没有证据表明自然选择强烈偏爱大脑变大。
原文开头
Why did our brains get bigger? Our brains are large compared with other animals, so it is tempting to assume there was an evolutionary advantage to them – but that may not be true, discovers Michael Marshall OUR unusually large brains are one of the defining features of our species. But there is no evidence evolution strongly favoured big brains in the past 2 million years of human evolution, according to a new analysis of fossil skulls. “There is indeed an increase in brain size through time, and there is indeed a reduction of facial size with time,” says Katerina Harvati at the University of Tübingen in Germany. However, this doesn’t appear to have been driven by natural selection. …
摘自《新科学家》(New Scientist)第3603期 · 2026年7月11日,Michael Marshall。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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