. The descent of man, and selection in relation to sex. Evolution (Biology); Sexual selection in animals; Sexual dimorphism (Animals); Sex differences; Human beings. Chap. X.] COLEOPTERA. 363 the lower surface of the body," in the latter on the upper surface of the head and thorax. In the Staphylinidae the horns of the males in the same species are extraordinarily variable, just as we have seen with the Lamellicorns. In. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrati
. The descent of man, and selection in relation to sex. Evolution (Biology); Sexual selection in animals; Sexual dimorphism (Animals); Sex differences; Human beings. Chap. X.] COLEOPTERA. 363 the lower surface of the body," in the latter on the upper surface of the head and thorax. In the Staphylinidae the horns of the males in the same species are extraordinarily variable, just as we have seen with the Lamellicorns. In. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Darwin, Charles, 1809-1882. New York, D. Appleton and company
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