. The descent of man, and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings; Sexual selection in animals; Sexual dimorphism (Animals); Sex differences. 404 THE DESCENT OF MAN. with scales like tne rest of the head; and of this wonderful modification of structure the female exhibits only a rudi- ment. Again^ in Chamceleo Owenii (fig. 36), from the <resi coast of Africa^ the male bears on his snout and fore-. Plg. 85. Chamaeleo bifurcus. Upper figure, male; lower figure, female. head three curious horns^ of which the female has not a trace. These horns consist


. The descent of man, and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings; Sexual selection in animals; Sexual dimorphism (Animals); Sex differences. 404 THE DESCENT OF MAN. with scales like tne rest of the head; and of this wonderful modification of structure the female exhibits only a rudi- ment. Again^ in Chamceleo Owenii (fig. 36), from the <resi coast of Africa^ the male bears on his snout and fore-. Plg. 85. Chamaeleo bifurcus. Upper figure, male; lower figure, female. head three curious horns^ of which the female has not a trace. These horns consist of an excrescence of bone covered with a smooth sheath, forming part of the general integuments of the body, so that they are identical in structure with those of a bull, goat, or other sheath-horned ruminant. Although the three horns differ so much in appearance from the two £:reat prolongations of the skull. 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 : A. L. Burt


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Keywords: ., bookcentury1800, bookdecade1870, booksubjecthumanbeings, bookyear