. The descent of man, and selection in relation to sex. Evolution; Heredity; Human beings; Natural selection. 554 THE DESCENT OF MAN". iPART IL neither sex of the Hemitragus has a beard. In the ibex the beard is not developed during the summer, and it is so small at ctiier times that it may be called rudimentary.^^ W:th some monkeys the beard is confined to the male, as in the o. xng; or is much larger in the male than in the female, as in tl*t My- cotes caraya and Pithecia satanas (fig. 68.) So it is with the whiskers of some species of Macacus,^^ and, as we have seen, >ith the manes
. The descent of man, and selection in relation to sex. Evolution; Heredity; Human beings; Natural selection. 554 THE DESCENT OF MAN". iPART IL neither sex of the Hemitragus has a beard. In the ibex the beard is not developed during the summer, and it is so small at ctiier times that it may be called rudimentary.^^ W:th some monkeys the beard is confined to the male, as in the o. xng; or is much larger in the male than in the female, as in tl*t My- cotes caraya and Pithecia satanas (fig. 68.) So it is with the whiskers of some species of Macacus,^^ and, as we have seen, >ith the manes of some species of baboons But v/ith most .--<.. Fig. 68.—Pithecia Satanas, male (from Brehm). kinds of monkeys the various tufts of hair about the face and head are alike in both sexes. The males of various members of the ox family (Bovidae), and of certain antelopes are furnished with a dewlap,.or great fold of skin on the neck, which is much less developed in the female. Now, wnat must we conclude with respect to such sexual differences as these ? No one will pretend that the beards of -l« See Dr. Gray's "Cat. of Mammalia in " Rengger, " Saugethiere," etc., s. ritish Museum," part iii. 1852, p. 144. T)esmarest, " Mammalogie," p. 66. 14< British. 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
