Archive image from page 417 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansele1874darw Year: 1874 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
Archive image from page 417 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansele1874darw Year: 1874 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
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Photo credit: © Actep Burstov / Alamy / Afripics
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Keywords: 1800, 1870, 1874, archive, book, bookauthor, bookcentury, bookdecade, bookpublisher, booksubject, bookyear, darwin_charles_1809_1882, drawing, evolution, heredity, historical, history, human_beings, illustration, image, natural_selection, new_york_a_l_burt, page, picture, print, reference, sex_differences, sexual_dimorphism_animals_, sexual_selection_in_animals, vintage
