Wait. What? Herbert Spencer was a Lamarckian?

While reading Peter J. Bowler’s The Eclipse of Darwinism, I was surprised to find out that the “social Darwinist”* Herbert Spencer was actually more Lamarckian than Darwinian. He apparently expressed Lamarckian views prior to the 1859 publication of The Origin of Species, and while he accepted Darwinian explanations and the theory of natural selection, Spencer believed Lamarckism – defined (here) as the inheritance of acquired characteristics through use/disuse – was the more important of the two theories. In fact, in his article, “The Inadequacy of Natural Selection,” Spencer states quite strongly that “either there has been inheritance of acquired characters, or there has been no evolution” (621).

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