Darwinism: An Exposition of the Theory of Natural Selection, with Some of Its ApplicationsMacmillan and Company, 1889 - 494 páginas |
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Página x
... habits of animals - The variability of plants - Species which vary little - Con- cluding remarks Pages 41-82 • CHAPTER IV VARIATION OF DOMESTICATED ANIMALS AND CULTIVATED PLANTS The facts of variation and artificial selection - Proofs ...
... habits of animals - The variability of plants - Species which vary little - Con- cluding remarks Pages 41-82 • CHAPTER IV VARIATION OF DOMESTICATED ANIMALS AND CULTIVATED PLANTS The facts of variation and artificial selection - Proofs ...
Página xii
... habits - Sexual colours of other vertebrates - Sexual selection by the struggles of males- Sexual characters due to natural selection - Decorative plumage of males and its effect on the females - Display of decorative plumage by the ...
... habits - Sexual colours of other vertebrates - Sexual selection by the struggles of males- Sexual characters due to natural selection - Decorative plumage of males and its effect on the females - Display of decorative plumage by the ...
Página 2
... habits , and , in the second place , because rooks always produce rooks , and crows produce crows , and they do not interbreed . It was therefore con- cluded that all the rooks in the world had descended from a single pair of rooks ...
... habits , and , in the second place , because rooks always produce rooks , and crows produce crows , and they do not interbreed . It was therefore con- cluded that all the rooks in the world had descended from a single pair of rooks ...
Página 3
... habits , conceived the idea that they might be all produced one from the other . The most eminent of these writers was a great French naturalist , Lamarck , who published an elaborate work , the Philosophie Zoologique , in which he ...
... habits , conceived the idea that they might be all produced one from the other . The most eminent of these writers was a great French naturalist , Lamarck , who published an elaborate work , the Philosophie Zoologique , in which he ...
Página 6
... and complete explanation were to be given of how each minute difference in form , colour , or structure might have originated , and how the several peculiarities of habit and of geographical distribution might have 6 СНАР . DARWINISM.
... and complete explanation were to be given of how each minute difference in form , colour , or structure might have originated , and how the several peculiarities of habit and of geographical distribution might have 6 СНАР . DARWINISM.
Outras edições - Ver tudo
Darwinism: An Exposition of the Theory of Natural Selection, with Some of ... Alfred Russel Wallace Visualização integral - 1890 |
Darwinism: An Exposition of the Theory of Natural Selection, with Some of ... Alfred Russel Wallace Visualização integral - 1890 |
Darwinism: An Exposition of the Theory of Natural Selection ..., Volumes 1-2 Alfred Russel Wallace Visualização integral - 1889 |
Palavras e frases frequentes
abundant adapted adduced allied species America amount animals and plants appears birds breed brilliant butterflies cause characters climate closely allied colours of animals common concealment conspicuous continued cross-fertilisation crossed curious Darwin dicotyledons distinct species domestic animals effects eggs enemies Eocene evidence extinct facts faculty favourable female fertile fertilised flowers genera genus geological groups habits hybrids important increase individuals infertility inhabit insects intercrossing kind larva larvæ less living male mammalia mammals markings marsupials mimicry Miocene mode modified moths natural selection naturalists nests occur offspring organs Origin of Species peculiar pigeons Pliocene pollen portion possess probably produced Professor protectively coloured pupa regions remarkable resemblance seeds self-fertilisation Silurian similar specimens spots sterility structure struggle for existence supposed tail theory tints tion toes trees tropical usually variability variation varied varieties vegetation warning colours whole wild wings Zealand