. The descent of man : and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings. ,56 The Descent of Man. Part li. and in a tliird species (C. Stoddartii, fig. 34) the whole appen- dage is converted into a horn, which is usually of a white colour, but assumes a purplish tint when the animal is excited. In the adult male of this latter species the horn is half an inch in length, but it is of quite minute size in the female and in the yoang. These appendages, as Dr. Giinther has remarked to me, may be compared with the combs of gallinaceous birds, and apparently serv
. The descent of man : and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings. ,56 The Descent of Man. Part li. and in a tliird species (C. Stoddartii, fig. 34) the whole appen- dage is converted into a horn, which is usually of a white colour, but assumes a purplish tint when the animal is excited. In the adult male of this latter species the horn is half an inch in length, but it is of quite minute size in the female and in the yoang. These appendages, as Dr. Giinther has remarked to me, may be compared with the combs of gallinaceous birds, and apparently serve as Fig. 35. Chama.'lcon bifurcus. Upper figure, male; lower figure, female. In the genus Cliamaileon we come to the acme of difference between the sexes. The upper part of the skull of the male C. hifarcus (fig. 35), an inhabitant of Madagascar, is produced into two great, solid, bony projections, covered with scales like the rest of the head; and of this wonderful modification of structure the female exhibits only a rudiment. Again, 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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Keywords: ., bookcentury1800, bookdecade1870, booksubjecthumanbeings, bookyear
