Woodcut depicting the similar appearance of a human embryo (top) and a dog embryo (bottom), from Charles Darwin's Descent of Man (1871). Original caption: Fig. 1.—Upper figure human embryo, from Ecker. Lower figure that of a dog, from Bischoff. 1871 131 Descent fig02

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Size: 1565px × 3194px
Photo credit: © History and Art Collection / Alamy / Afripics
License: Licensed
Model Released: No

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