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From Histories of Life: Searching for Order
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Haeckel, Anthropogenie
This chart of embryos by German biologist Ernst Haeckel reflects his search for clues to the history of life. It shows a fish, salamander, turtle, and chicken on the left and a pig, cow, rabbit, and human on the right. A strong evolutionist, Haeckel focused his argument for evolution around the study of embryos. He argued that the whole evolutionary history of an organism could be understood by observing the development of the embryo.
Ernst Haeckel (1834–1919). Anthropogenie.... Leipzig: Wilhelm Engelmann, 1877.
