The Descent of Man, and Selection in Relation to Sex, เล่มที่ 2

acquired adult female adult male appear Argus pheasant Audubon Australia beak beard beauty Birds of India Blyth body breed breeding-season Brehm bright colours British Birds canine teeth charm common common pheasant courtship crest curious deer developed differences in colour distinct domestic doubt Edition fact feathers fighting fishes genus Gould Günther habits hair head Hist horns ibid Ibis India Indian bustard inheritance instance Jerdon less likewise lower animals Lubbock Malay Archipelago male birds mammals manner modified moult natural selection nearly nests observed occurs ocelli offspring ornaments pair peacock plumage plumes Polyplectron Portrait possess Post 8vo probable Proc progenitors Quadrumana quadrupeds races racters remarks sake of protection savages season sexes sexual selection shew shewn species spots stripes tail tail-coverts tail-feathers teeth tints tion transmission transmitted tribe tusks upper various vocal organs whilst the females wild turkey wing-feathers wings women young Zoolog