Abstract
THE weak spot in Mr. Cunningham's argument (NATURE, November 8, p. 29) lies in his believing it to be conceded that secondary sexual characters which are the outcome of male katabolism need no explanation by the theory of sexual or of natural selection. Starting with this assumption, he points out that, since these characters are often not developed, male katabolism does not exist in such cases, or exists without producing any visible effects. He therefore rejects male katabolism as the cause of the variations and introduces in its stead “nervous and muscular activity” and “the habits of life and external conditions.
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POCOCK, R. Secondary Sexual Characters and the Coloration of the Prong-buck. Nature 63, 157 (1900). https://doi.org/10.1038/063157a0
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DOI: https://doi.org/10.1038/063157a0
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