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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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The Principles of Psychology, Том 2

William James - 1902 - 728 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...be profitable. It is thus, as I believe, that all tho most complex and wonderful instincts have arisen. ... I believe that the effects of habit are of...
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The Ethical Import of Darwinism

Jacob Gould Schurman - 1903 - 292 стор.
...Darwin. Divorcing his science therefrom, he elsewhere admirably describes his position in these words : " If it can be shown that instincts do vary ever so...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 originated."...
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The Soul: A Study and an Argument

David Syme - 1903 - 280 стор.
...says, " that slight variations might be profitable to a species, and if it can be shown these instincts vary ever so little, then I can see no difficulty...preserving and continually accumulating variations of instincts to any extent that was profitable. It is thus, as I believe, that all the complex and wonderful...
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The Soul: A Study and an Argument

David Syme - 1903 - 276 стор.
...the origin of instinct are well known. " It is at least possible," he says, " that slight variations might be profitable to a species, and if it can be shown these instincts vary ever so little, then I can see no difficulty in natural selection preserving and...
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The Origin of Species

Charles Darwin - 1909 - 584 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 the most complex and wonderful instincts have originated....
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The Evolution of animal intelligence

Samuel Jackson Holmes - 1911 - 318 стор.
...as corporeal structures for the welfare of each species under its present conditions of life. . . . If it can be shown that instincts do vary ever so...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 originated."...
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The Theories of Instinct: A Study in the History of Psychology

Emil Carl Wilm - 1925 - 224 стор.
...History of 10 Cf. the following more recent accounts of instinct : "If it can be shown that instincts vary ever so little, then I can see no difficulty...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 originated."...
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A Short Outline of Comparative Psychology

Carl John Warden - 1927 - 104 стор.
...accumulation of favorable variations in the struggle of the organism to survive. "If it can be shown (he says) that instincts do vary ever so little, then I can...accumulating variations of instinct to any extent profitable. It is thus, I believe, that all the most wonderful and complex instincts have originated."...
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The Evolution of Scientific Knowledge

Hans Siggaard Jensen, Lykke Margot Richter, Morten Thanning Vendel_ - 2003 - 242 стор.
...could become inherited. On the other hand, there was the possibility of natural selection of instinct: Under changed conditions of life, it is at least possible...of instinct to any extent that may be profitable. (Darwin [1859] 1985, p. 236) The second difficulty relates to the ontological conflation of habits...
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The Squashed Philosophers

Glyn Lloyd-Hughes - 2005 - 412 стор.
...changed conditions of life, it is at least possible that slightly changed instincts might be profitable; and if it can be shown that instincts do vary ever...no difficulty in natural selection preserving and accumulating their variations. But, as with corporeal structures, we ought to find in nature, not the...
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