. The descent of man, and selection in relation to sex. Evolution; Heredity; Human beings; Natural selection. CHAP. XVIII.] MAMMALS—ORNAMENTAL COLORS. 561 ing these resplendent colors, which they compare with those of the most brilliant birds. Another remarkable peculiarity is that when the great canine teeth are fully developed, immense protuberances of bore ii 3 formed on each cheek, which are deeply furrowed longitudinally, and the naked skin over them is briUiantly colored, as just described. (Fig. 69.) In the. Fig. 69.—Head of male Mandrill (from Gervais, *' Hist Nat. dcs Maramifires ''X
. The descent of man, and selection in relation to sex. Evolution; Heredity; Human beings; Natural selection. CHAP. XVIII.] MAMMALS—ORNAMENTAL COLORS. 561 ing these resplendent colors, which they compare with those of the most brilliant birds. Another remarkable peculiarity is that when the great canine teeth are fully developed, immense protuberances of bore ii 3 formed on each cheek, which are deeply furrowed longitudinally, and the naked skin over them is briUiantly colored, as just described. (Fig. 69.) In the. Fig. 69.—Head of male Mandrill (from Gervais, *' Hist Nat. dcs Maramifires ''X adult females and in the young of both sexes these protuber- ances are scarcely perceptible; and the naked parts are much less bright colored, the face being almost black, tinged with blue. In the adult female, however, the nose at certain regu- lar intervals of time becomes tinted with red. In all the cases hitherto given the male is more strongly or brighter colored than the female, and diifcrs from the voung q|. 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 Hurst
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Keywords: ., bookcentury1800, bookdecade1870, booksubjecthumanbeings, bookyear
