The Descent of Man, and Selection in Relation to SexJohn Murray, 1882 - 693페이지 |
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85개의 결과 중 1 - 5개
xiii 페이지
... pair - The extinction of races - The formation of races - The effects of crossing - Slight influence of the direct action of the conditions of life - Slight or no influence of natural selection— Sexual selection PAGE 166 PART II ...
... pair - The extinction of races - The formation of races - The effects of crossing - Slight influence of the direct action of the conditions of life - Slight or no influence of natural selection— Sexual selection PAGE 166 PART II ...
37 페이지
... pairs of mamme on the breast . Five cases have been recorded of the presence of more than a pair of mammæ ( of course rudimentary ) in the male sex of mankind ; see ' Journal of Anat . and Physiology , ' 1872 , p . 56 , for a case given ...
... pairs of mamme on the breast . Five cases have been recorded of the presence of more than a pair of mammæ ( of course rudimentary ) in the male sex of mankind ; see ' Journal of Anat . and Physiology , ' 1872 , p . 56 , for a case given ...
102 페이지
... pair with a nest ; and when- ever the female left it , she was surrounded by a troop " scream- ing horrible acclamations in her honour . " It is often difficult to judge whether animals have any feeling for the sufferings of others of ...
... pair with a nest ; and when- ever the female left it , she was surrounded by a troop " scream- ing horrible acclamations in her honour . " It is often difficult to judge whether animals have any feeling for the sufferings of others of ...
163 페이지
... pairs of mammæ . In man and some other male mammals these organs have been known occasionally to become so well developed during maturity as to yield a fair supply of milk . Now if we suppose that during a former prolonged period male ...
... pairs of mammæ . In man and some other male mammals these organs have been known occasionally to become so well developed during maturity as to yield a fair supply of milk . Now if we suppose that during a former prolonged period male ...
166 페이지
... pair - The extinction of races - The formation of races - The effects of crossing - Slight influence of the direct ... pairing . Independently of fusion from intercrossing , the complete absence , in a well - investigated region , of ...
... pair - The extinction of races - The formation of races - The effects of crossing - Slight influence of the direct ... pairing . Independently of fusion from intercrossing , the complete absence , in a well - investigated region , of ...
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acquired adult male American apes appear Argus pheasant baboon beauty become believe birds body brain breed breeding-season Brehm bright colours chimpanzee civilised common conspicuous courtship developed differences in colour domestic doubt early elytra extremely fact faculties feathers fighting fishes Fritz Müller genus habits hair head Hist horns India inhabitants inherited insects instance Jerdon kind larvæ latter Lepidoptera less likewise lower animals Lubbock Malay Archipelago mammæ mammals manner Marsupials mental modified monkeys moult natural selection naturalists negroes nests observed occur ocelli offspring organs ornaments Orthoptera pair peacock period pheasant plumage polygamous possess present probably Proc Prof progenitors Quadrumana quadrupeds races reason remarks resemble respect rudiments savages secondary sexual characters seen sexes sexual selection shew shewn social instincts spots stridulating structure surface tail tints tion transmitted tribe upper Variation of Animals various Wallace whilst the females wings women young Zoolog