A copy of Charles Darwin's notebook containing his idea of an evolutionary tree. The notebook is in the American Museum of Natural History in New York City.
(图片)查尔斯·达尔文笔记本的复制件，里面包含他的进化树思想。笔记本原件在纽约的美国生物史博物馆。
A copy of Charles Darwin's notebook containing his idea of an evolutionary tree. The notebook is in the American Museum of Natural History in New York City.
(图片)查尔斯·达尔文笔记本的复制件，里面包含他的进化树思想。笔记本原件在纽约的美国生物史博物馆。
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