The Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life |
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Page 26
... similar process of sel of selection , and by careful training , English racehorses have come to surpass in fleetness and size the parent Arabs , so that the latter , by the regulations for the Goodwood Races , are favoured in the ...
... similar process of sel of selection , and by careful training , English racehorses have come to surpass in fleetness and size the parent Arabs , so that the latter , by the regulations for the Goodwood Races , are favoured in the ...
Page 36
... similar to other forms , or are so closely linked to them by intermediate gradations , that naturalists do not like to rank them as distinct species , are in several respects the most important for us . We have every reason to believe ...
... similar to other forms , or are so closely linked to them by intermediate gradations , that naturalists do not like to rank them as distinct species , are in several respects the most important for us . We have every reason to believe ...
Page 43
... similar habits of life . With respect to the number of individuals or commonness of species , the comparison of course relates only to the members of the same group . One of the higher plants may be said to be dominant if it be more ...
... similar habits of life . With respect to the number of individuals or commonness of species , the comparison of course relates only to the members of the same group . One of the higher plants may be said to be dominant if it be more ...
Page 62
... similar changes of conditions might and do occur under nature . Let it also be borne in mind how infinitely complex and close - fitting are the mutual relations of all organic beings to each other and to their physical conditions of ...
... similar changes of conditions might and do occur under nature . Let it also be borne in mind how infinitely complex and close - fitting are the mutual relations of all organic beings to each other and to their physical conditions of ...
Page 64
... continued under the same conditions of life and profited by similar means of subsistence and defence . No country can be named in which all the native inhabitants are now so perfectly adapted to each 64 CHAP . IV . Natural Selection .
... continued under the same conditions of life and profited by similar means of subsistence and defence . No country can be named in which all the native inhabitants are now so perfectly adapted to each 64 CHAP . IV . Natural Selection .
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Common terms and phrases
adapted admit affinities allied species America analogous ancient appear beak become bees believe belonging birds breeds cause cells characters climate closely allied colour continuous crossed crustaceans degree developed difficulty distinct species doubt effects eggs embryo existing extinct extremely facts favourable fertilised fertility flowers formations formerly forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids important increase individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ larvæ less living male mammals manner Marsupials migration modified descendants natural selection naturalists nearly nest occasionally oceanic islands offspring organisation organs parent peculiar perfect pigeon pistil pollen present preserved principle probably produced quadrupeds ranked reciprocal crosses remarked reproductive resemblance rudimentary seeds sexual selection slight South America stamens sterility structure struggle successive supposed theory tion variability variations varieties vary whilst whole wings young
Popular passages
Page 1 - These facts, as will be seen in the latter chapters of this volume, seemed to throw some light on the origin of species — that mystery of mysteries, as it has been called by one of our greatest philosophers.
Page 162 - ... if it could be proved that any part of the structure of any one species had been formed for the exclusive good of another species, it would annihilate my theory, for such could not have been produced through natural selection
Page 1 - ... of our greatest philosophers. On my return home, it occurred to me, in 1837, that something might perhaps be made out on this question by patiently accumulating and reflecting on all sorts of facts which could possibly have any bearing on it. After five years' work I allowed myself to speculate on the subject, and drew up some short notes...
Page 424 - Analogy would lead me one step further, namely, to the belief that all animals and plants have descended from some one prototype. But analogy may be a deceitful guide.
Page 50 - In these several senses, which pass into each other, I use for convenience' sake the general term of Struggle for Existence.
Page 322 - Every species has come into existence coincident both in space and time with a pre-existing closely allied species.
Page 146 - If it could be demonstrated that any complex organ existed which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down.
Page 310 - I strongly insisted, in 1839 and 1845, on this " law of the succession of types,"—on " this wonderful relationship in the same continent between the dead and the living." Professor Owen has subsequently extended the same generalisation to the mammals of the Old World. We see the same law in this author's restorations of the extinct and gigantic birds of New Zealand. We see it also in the birds of the caves of Brazil. Mr. Woodward has shown that the same law holds good with sea-shells, but, from...
Page 57 - Now the number of. mice is largely dependent, as every one knows, on the number of cats; and Col.
Page 103 - It is a truly wonderful fact—the wonder of which we are apt to overlook from familiarity—that all animals and all plants throughout all time and space should be related to each other in groups subordinate to groups, in the manner which we everywhere behold...