 ... of the year when food was scarcest; they would also rear more young, which would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can see no more reason to doubt that these causes in a thousand generations...  The American Journal of Science and Arts - Page 471869Full view - About this book
 | 1860 - 566 pages
...best climbers would escape the tigers, the worst would be rigidly destroyed. Buffon would have seen no more reason to doubt that these causes, in a thousand...produce a marked effect, and adapt the form of the wild man to obtain fruits rather * By Darwin and 'Wallace, 'Proceedings of the Linnaeaa Society,' August,... | |
 | British Association for the Advancement of Science - 1859 - 750 pages
...scarcest; they would also rear more young, which would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can...greyhounds can be improved by selection and careful breeding*." Observation of animals in a state of nature is required to show their degree of plasticity,... | |
 | 1859 - 578 pages
...scarcest ; they would also rear more young, which would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can...would produce a marked effect, and adapt the form o the fox or dog to the catehing of hares instead of rabbits, than tha greyhounds con be improved by... | |
 | 1860 - 894 pages
...D:ir\vin and Wallace, " Proceedings of the Linnœau Society,'1 August, 1858, p. 45. Buffon would have seen no more reason to doubt that these causes, in a thousand...produce a marked effect, and adapt the form of the wild man to obtain fruits rather than grains, than Darwin now believes that man can be improved by... | |
 | Richard Owen - 1861 - 490 pages
...scareest ; they would also rear more young, which would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can...effect, and adapt the form of the fox or dog to the catehing of hares instead of rabbits, than that greyhounds can be improeed by selection and careful... | |
 | Richard Owen - 1861 - 552 pages
...scareest ; they would also rear more young, which would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can...causes in a thousand generations would produce a marked eflVct, and adapt the form of the fox or dog to the catching of hares instead of rabbits, than that... | |
 | Richard Owen - 1868 - 954 pages
...scarcest ; they would also rear more young, which would tend to inherit those slight peculiarities. The less fleet ones would be rigidly destroyed. I can...greyhounds can be improved by selection and careful breeding.' ' So Geoffroy Saint-Hilaire also wrote :— ' Si ces modifications amenent des effets nuisibles,... | |
 | Richard Owen - 1868 - 966 pages
...scarcest ; they would also rear more young, which would tend to inherit those slight peculiarities. The less fleet ones would be rigidly destroyed. I can...greyhounds can be improved by selection and careful breeding.' ' So Geoffrey Saint-Hilaire also wrote : — ' Si ces modifications amenent des effets nuisibles,... | |
 | Richard Owen - 1868 - 1046 pages
...scarcest ; they would also rear more young, which would tend to inherit those slight peculiarities. The less fleet ones would be rigidly destroyed. I can...thousand generations would produce a marked effect, and ad.ipt the form of the fox or dog to the catching of hares instead of rabbits, than that greyhounds... | |
 | 1869 - 488 pages
...scarcest ; they would also rear more young, which would tend to inherit those slight peculiarities. The less fleet ones would be rigidly destroyed. I can...also wrote : — ' Si ces modifications amenent des effets nuisibles, les animaux qui les e'prouvent cessent d'exister, pour etre remplaces par d'autres,... | |
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