. 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. BIRDS. 439 ifc'j iorming a sort of halo, in the center of which the head '•* looJis like a little emerald sun with its rays formed by. Fig. 48. Lophornis ornatus, male and female (from Brehm). the two plumes/^* In another most beautiful species th* head is bald ^^ and of a rich cobalt blue, crossed by several lines of black velvety feathers/'f * Quoted from M. de Lafresnaye in •' Annals and Mag. of Nat Hist.,&qu


. 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. BIRDS. 439 ifc'j iorming a sort of halo, in the center of which the head '•* looJis like a little emerald sun with its rays formed by. Fig. 48. Lophornis ornatus, male and female (from Brehm). the two plumes/^* In another most beautiful species th* head is bald ^^ and of a rich cobalt blue, crossed by several lines of black velvety feathers/'f * Quoted from M. de Lafresnaye in •' Annals and Mag. of Nat Hist.," vol. xiii, 1854, p. 157: see also Mr. Wallace's much fuller account in vol. xx, 1857, p. 412, and in liis ** Malay Archipelago" t Wallace, ** The Malay Archipelago," vol. ii, 1869, 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 : A. L. Burt


Size: 1437px × 1739px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1870, booksubjecthumanbeings, bookyear