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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... organic world . Again , it may be asked , how is it that varieties , which I have called incipient species , become ultimately con- verted into good and distinct species , which in most cases obviously differ from each other far more ...
... organic beings have been formed on two great laws - Unity of Type , and the Conditions of Existence . By unity of type is meant that fundamental agreement in structure , which we see in organic beings of the same class , and which is ...
... organic beings , better accord with the common view of the immutability of species , or with that of their slow and gradual modi- fication , through descent and natural selection . New species have appeared very slowly , one after ...
Содержание
VARIATION UNDER DOMESTICATION | 7 |
VARIATION UNDER NATURE | 44 |
STRUGGLE FOR EXISTENCE | 60 |
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Publications of the Biological Services Program Biological Services Program (U.S.) Полный просмотр - 1978 |
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An Introduction to Behavioural Ecology Nicholas B. Davies,John R. Krebs Недоступно для просмотра - 1993 |