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" Under changed conditions of life, it is at least possible that slight modifications of instinct might be profitable to a species; and if it can be shown that instincts do vary ever so little, then I can see no difficulty in natural selection preserving... "
On the Origin of Species by Means of Natural Selection: Or, The Preservation ... - Сторінка 187
автори: Charles Darwin - 1864 - 440 стор.
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Proceedings of the Literary & Philosophical Society of Liverpool, Випуск 15

Literary and Philosophical Society of Liverpool - 1861 - 276 стор.
...originally was a habit, and an instinct, becomes so close as not to be distinguished;" and again — "Under changed conditions of life, it is at least possible that slight modifications of instinct that there is no natural barrier to development, as long as that development is confined to cognizable...
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All the Year Round, Том 3

Charles Dickens - 1860 - 638 стор.
...under the conditions of life by which it happens to he surrounded. Under changed circumstances, it is possible that slight modifications of instinct might...shown that instincts do vary ever so little, then Mr. Darwin sees no difficulty in Natural Selection preserving and continually accumulating variations...
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Proceedings of the Literary & Philosophical Society ..., Томи 14 – 15

Literary and Philosophical Society of Liverpool - 1860 - 582 стор.
...originally was a habit, and an instinct, becomes so close as not to be distinguished;" and again — "Under changed conditions of life, it is at least possible that slight modifications of instinct 87 might be profitable to a species ; and if it can be shown that instincts do vary, ever so little,...
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The Darwinian Theory of the Transmutation of Species

Robert Mackenzie Beverley - 1867 - 406 стор.
...examples, like every thing else in this theory, is to be traced to the operations of Natural Selection. ' Under changed conditions of life it is at least possible...accumulating variations of instinct to any extent that was profitable. It is thus, I believe, that all the most complex and wonderful instincts have originated...
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The Darwinian Theory of the Transmutation of Species

Robert Mackenzie Beverley - 1867 - 598 стор.
...examples, like every thing else in this theory, is to be traced to the operations of Natural Selection. ' Under changed conditions of life it is at least possible...accumulating variations of instinct to any extent that was profitable. It is thus, I believe, that all the most complex and wonderful instincts have originated...
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The Darwinian Theory of the Transmutation of Species

Robert Mackenzie Beverley - 1867 - 424 стор.
...examples, like every thing else in this theory, is to be traced to the operations of Natural Selection. ' Under changed conditions of life it is at least possible...can be shown that instincts do vary ever so little, ihe\ I can see no difficulty in Natural Selection preserving and continually accumulating variations...
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Spirit and mind polarity, or The disentanglement of ideas

Arthur Young - 1873 - 222 стор.
...important as corporeal structure for the welfare of each species, under its present conditions of life. Under changed conditions of life, it is at least possible...modifications of instinct might be profitable to a species Changes of instinct may sometimes be facilitated by the same species having different instincts at...
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What is Darwinism?

Charles Hodge - 1874 - 190 стор.
...pointer or retriever have been known to point or to retrieve without instruction. "If," he says, " it can be shown that instincts do vary ever so little,...accumulating variations of instinct to any extent that was profitable. It is thus, as I believe, that all the most complex and wonderful instincts have arisen."...
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On the origin of species by means of natural selection ; or, The ...

Charles Darwin - 1875 - 504 стор.
...important as corporeal structures for the welfare of each species, under its present conditions of life. Under changed conditions of life, it is at least possible...accumulating variations of instinct to any extent that was profitable. It is thus, as I believe, that all tho most complex and wonderful instincts have originated....
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Humboldt Library of Popular Science Literature, Том 2,Випуски 37 – 48

1879 - 614 стор.
...important as corporeal structures for the welfare of each species, under its present conditions of life. Under changed conditions of life, it is at least possible...accumulating variations of instinct to any extent that was profitable. It is thus, I believe, that all the most complex and wonderful instincts have originated."...
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