 | Charles Darwin - 1864 - Страниц: 472
...; for natural selection includes no necessary and universal law of advancement or development ; it only takes advantage of such variations as arise and...each creature under its complex relations of life. And it may be asked, what advantage, as far as we can see, would it be to an infusorian animalcule... | |
 | 1868 - Страниц: 884
...that ' natural selection includes no necessary and universal law of advancement or development ; it only takes advantage of such variations as arise and...each creature under its complex relations of life.' So that even the lowest forms might ' be left by natural selection unimproved, or but little improved,'... | |
 | 1868 - Страниц: 884
...that ' natural selection includes no necessary and universal law of advancement or development ; it only takes advantage of such variations as arise and...each creature under its complex relations of life.' So that even the lowest forms might 'be left by natural selection unimproved, or but little improved,"... | |
 | H. Charlton Bastian - 1872 - Страниц: 824
...however, expressly states that he is not an advocate of ' progressive development.' He says1: — ' On our theory the continued existence of lowly organisms...fittest, does not necessarily include progressive development — it only takes advantage of such variations as arise, and are beneficial to each creature... | |
 | H. Charlton Bastian - 1872 - Страниц: 822
...however, expressly states that he is not an advocate of ' progressive development.' He says1: — ' On our theory the continued existence of lowly organisms...fittest, does not necessarily include progressive development — it only takes advantage of such variations as arise, and are beneficial to each creature... | |
 | Charles Darwin - 1873 - Страниц: 492
...generation. Science has not as yet proved the truth of this belief, whatever the future may reveal. On our theory .the continued existence of lowly organisms...progressive development—it only takes advantage of sucn variations as arise and are beneficial to each creature under its complex relations of life. And... | |
 | Chambers W. and R., ltd - 1874 - Страниц: 876
...that ' natural selection includes no necessary and universal law of advancement or development ; it only takes advantage of such variations as arise and...each creature under its complex relations of life.' So that even the lowest forms might 'be left by natural selection unimproved, or but little improved,'... | |
 | Charles Hodge - 1874 - Страниц: 190
...far more highly developed than others f . . . . On our theory the continuous existence of lowly forms offers no difficulty ; for natural selection, or the...fittest, does not necessarily include progressive development, it only takes advantage of such variations as arise and are beneficial to each creature... | |
 | Charles Darwin - 1875 - Страниц: 504
...generation. Science has not as yet proved the truth of this belief, whatever the future may reveal. On our theory the continued existence of lowly organisms...fittest, does not necessarily include progressive development — it only takes advantage of such variations as arise and are beneficial to each creature... | |
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On our theory the continued existence of lowly organisms offers no difficulty; for natural selection, or the survival of the fittest, does not necessarily include progressive development— it only takes advantage of such variations as arise and are beneficial... 
