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Fig. 1 | Evolution: Education and Outreach

Fig. 1

From: Speciation and Bursts of Evolution

Fig. 1

Charles Darwin’s first known sketch of a tree describing how organisms are related. The sketch appears in Darwin’s first notebook on transmutation of species dating from 1837. (Image credit: © Auckland Museum.)

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Evolution: Education and Outreach

ISSN: 1936-6434

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