A groundbreaking study of brain evolution across birds and dinosaurs reveals potential drivers of increased brain size including biogeography and ecology. The most dramatic change occurred in the Neoaves after the Cretaceous-Paleogene extinction rather than earlier in bird evolution.

中文翻译：

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进化：聪明的鸟。

一项关于鸟类和恐龙的大脑进化的开创性研究表明，包括生物地理学和生态学在内，大脑尺寸增加的潜在驱动因素。最显着的变化发生在白垩纪-古近纪灭绝后的Neoaves中，而不是鸟类进化的早期。