| 1903 - 762 páginas
...variation in the least degree injurious would be rigidly destroyed. This preservation of favourable individual differences and variations, and the destruction of those which are injurious, I have called Natural Selection, or the Survival of the Fittest." — (Origin of Species, chap, iv.)... | |
| William Smith Turner - 1904 - 364 páginas
...feel sure that any variation in the least injurious would be rigidly destroyed. The preservation of favorable individual differences and variations, and the destruction of those which are injurious, I have called natural selection, or survival of the fittest." "New and improved varieties continually... | |
| John Jackson - 1905 - 326 páginas
...variation in the least degree injurious would be rigidly destroyed. THIS PRESERVATION OF FAVOURABLE INDIVIDUAL DIFFERENCES AND VARIATIONS, AND THE DESTRUCTION OF THOSE WHICH ARE INJURIOUS, I HAVE CALLED NATURAL SELECTION, OR SURVIVAL OF THE FITTEST " (Darwin, " Origin of Species," pp. 63,... | |
| James MacKaye - 1906 - 218 páginas
...sure that any variation in the least degree injurious would be rigidly destroyed. This preservation of favorable individual differences and variations, and the destruction of those which are injurious, I have called Natural Selection, or the Survival of the Fittest." 1 Thus nature, by always producing... | |
| Liberty Hyde Bailey - 1906 - 506 páginas
...them, how does she endeavor to fix them, or to make them more or less stable ? " This preservation of favorable individual differences and variations, and the destruction of those which are injurious, I have called Natural Selection or the Survival of the Fittest." This is the philosophy which was propounded... | |
| Vernon Faithfull Storr - 1906 - 348 páginas
...nocturnal habits, or protective colouring. Darwin's own words are: "This preservation of favourable individual differences and variations, and the destruction of those which are injurious, I have called Natural Selection, or the Survival of the Fittest".1 And he adds: "It may metaphorically... | |
| Oliver Joseph Thatcher - 1907 - 482 páginas
...variation in the least degree injurious would be rigidly destroyed. This preservation of favourable individual differences and variations, and the destruction of those which are injurious, I have called Natural Selection, or the Survival of the Fittest. Variations neither useful nor injurious... | |
| Francis Rolt-Wheeler - 1909 - 318 páginas
...that any variation' in the least degree injurious would be rigidly destroyed. This preservation of favorable individual differences and variations, and the destruction of those which are injurious, I have called Natural Selection, or the Survival of the Fittest. Variations neither useful nor injurious)... | |
| 1909 - 112 páginas
...evolution. Of the former of these factors his own definition stands as a classic. "This preservation of favorable individual differences and variations, and the destruction of those which are injurious, I have called Natural Selection, or Survival of the Fittest." When the "Origin of Species" was produced... | |
| Charles Darwin - 1909 - 584 páginas
...variation in the least degree injurious would be rigidly destroyed. This preservation of favourable individual differences and variations, and the destruction of those which are injurious, I have called Natural Selection, or the Survival of the Fittest. Variations neither useful nor injurious... | |
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