On the Origin of SpeciesHarvard University Press, 2003 - Всего страниц: 553 It is now generally recognized that the publication of Darwin's Origin of Species in 1859 not only decisively altered the basic concepts of biological theory but had a profound and lasting influence on social, philosophic, and religious thought. This work is rightly regarded as one of the most important books ever printed. |
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... forms occur , they are much rarer numerically than the forms which they connect . Now , if we may trust these facts and inferences , and therefore conclude that varieties linking two other varieties together have generally existed in ...
... forms of life , ancient and recent , make together one grand system ; for all are connected by generation . We can understand , from the continued tendency to divergence of character , why the more ancient a form is , the more it ...
... forms have apparently migrated from the north to the south , than in a reversed direction . We see , however , a few southern vegetable forms on the mountains of Borneo and Abyssinia . I suspect that this preponderant migration from ...
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VARIATION UNDER DOMESTICATION | 7 |
VARIATION UNDER NATURE | 44 |
STRUGGLE FOR EXISTENCE | 60 |
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An Introduction to Behavioural Ecology Nicholas B. Davies,John R. Krebs Недоступно для просмотра - 1993 |