. The descent of man, and selection in relation to sex. Evolution; Natural selection; Sexual selection in animals; Human beings -- Origin; Sexual dimorphism (Animals). SEXUAL SELECTION. [Part II. 27.) In our salmon this change of structure lasts only during the breeding-season; but in the Salmo lycaodon of Northwestern America the change, as Mr J. K. Lord 7. Fig. 26.—Head of male of common salmon {Salmo salar) during the breeding- season. [This drawing, as well as all the others in the present chapter, have been ex- ecuted by the well-known artist, Mr. G. Ford, under the kind superintendence o
. The descent of man, and selection in relation to sex. Evolution; Natural selection; Sexual selection in animals; Human beings -- Origin; Sexual dimorphism (Animals). SEXUAL SELECTION. [Part II. 27.) In our salmon this change of structure lasts only during the breeding-season; but in the Salmo lycaodon of Northwestern America the change, as Mr J. K. Lord 7. Fig. 26.—Head of male of common salmon {Salmo salar) during the breeding- season. [This drawing, as well as all the others in the present chapter, have been ex- ecuted by the well-known artist, Mr. G. Ford, under the kind superintendence of Dr. Giinther, from specimens in the British Museum]. 7 "The Naturalist in Vancouver's Island,' vol. i. 1866, p. 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 Co.
Size: 1241px × 2014px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, bookdecade1870, booksubjectnaturalselection
