The Plastic Brain

Haeckel’s embryos

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Proven false in 1874 by Professor Wilhelm His, Sr. Ernst Haeckel was convicted of fraud for this in 1874. Human embryos never have gills — not even rudimentary ones. If his theory was disproved…then why is it still printed in school textbooks everywhere as fact?

A very detailed review of the positive and negative aspects of Haeckel’s work, and His’s objections, can be found here: 


Author: Rogan Tinsley

Biology, science and maths teacher with a PhD in Neuroscience and passion for education.

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