. The descent of man, and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings -- Origin. Chap. XIII. Display by the Male. 399 spots, each of which consists of two or three black dots with a surrounding dark zone. But the chief ornament is a space parallel to the dark-blue shaft, which in outline forms a perfect second feather lying within the true feather. This inner part is coloured of a lighter chesnut. and is thickly dotted with minute. Fig. 52. Side view of male Argus pheasant, whilst displaying before the female. Observed and sKetcned from nature by Mr. T. W
. The descent of man, and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings -- Origin. Chap. XIII. Display by the Male. 399 spots, each of which consists of two or three black dots with a surrounding dark zone. But the chief ornament is a space parallel to the dark-blue shaft, which in outline forms a perfect second feather lying within the true feather. This inner part is coloured of a lighter chesnut. and is thickly dotted with minute. Fig. 52. Side view of male Argus pheasant, whilst displaying before the female. Observed and sKetcned from nature by Mr. T. W. 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, Appleton
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Keywords: ., boo, bookcentury1800, bookdecade1880, booksubjectnaturalselection
