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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... animals which unite for each birth , which wander much , and which do not breed at a very quick rate . Hence in animals of this nature , for instance in birds , varieties will generally be confined to separated countries ; and this I ...
... animals , having ordinary powers of vision , slowly migrated by successive generations from the outer world into the deeper and deeper recesses of the Kentucky caves , as did European animals into the caves of Europe . We have some ...
... animals , now in a state of nature , could easily be brought to bear widely different climates . We must not , however , push the foregoing argument too far , on account of the pro- bable origin of some of our domestic animals from seve ...
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 |