| 1890 - 414 pages
...same species has generally some effect upon the chance of life. "Can we doubt (remembering that many more individuals are born than can possibly survive)...chance of surviving and of procreating their kind ? " (' Origin of Species,' chap. iv). Of late years, another view has received support from various... | |
| 1860 - 532 pages
...that many more individuals are born than can possibly survive), that individuals having advantages however slight, over others, would have the best chance...rigidly destroyed. This preservation of favourable variations and the rejection of injurious variations I call natural selection. Variations neither useful... | |
| William Nelson Pendleton - 1860 - 362 pages
...occur in the course of thousands of generations ? If such do occur, can we doubt, remembering that many more individuals are born than can possibly survive,...procreating their kind ? On the other hand, we may be sure that any variation in the least degree injurious would be rigidly destroyed. 22 This preservation... | |
| Richard Holt Hutton, Walter Bagehot - 1860 - 556 pages
...occur in the course of thousands of generations 1 If such do occur, can we doubt (remembering that many more individuals are born than can possibly survive)...others, would have the best chance of surviving, and of propagating their kind ? On the other hand, we may feel sure that any variation in the least degree... | |
| 1860 - 564 pages
...thousands of generations ? If such do occur, can we doubt (remembering that many more individuals nre born than can possibly survive) that individuals having...others, would have the best chance of surviving, and of propagating their kind ? On the other hand, we may feel sure that any variatiou in the least degree... | |
| 1860 - 390 pages
...sake of brevity, NATURAL SELECTION." At the beginning of the same chapter, he has added to this, " On the other hand, we • may feel sure that any variation...least degree injurious would be rigidly destroyed; " and he includes " sexual selections '*• as a powerful assistant. The theory is then based upon... | |
| 1860 - 982 pages
...If such do occur, then, remembering the struggle for existence, individuals possessing any advantage over others would have the best chance of surviving and of procreating their kind, while injurious variations would be rigidly destroyed. Such a continual preservation of favorable,... | |
| Charles Darwin - 1861 - 470 pages
...occur in the course of thousands of generations ? If such do occur, can we doubt (remembering that many more individuals are born than can possibly survive)...rigidly destroyed. This preservation of favourable variations and the rejection of injurious variations, I call Natural Selection. Variations neither... | |
| 1861 - 824 pages
...sometimes occur in the course of thousands of generations? If such do occur, can we doubt (remembering that more individuals are born than can possibly survive),...others, would have the best chance of surviving and procreating their kind ? On the other hand, we may feel sure that any variations in the least degree... | |
| John Watts - 1865 - 206 pages
...of generations? If such do occur, can we doubt (remembering that many more individuals are born than possibly survive) that individuals having any advantage,...others, would have the best chance of surviving and procreating their kind? On the other hand, we may feel sure that any variation, in the least degree... | |
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