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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... offspring of two distinct and differently coloured breeds ; and in this case there is nothing in the external conditions of life to cause the reappearance of the slaty - blue , with the several marks , beyond the influence of the mere ...
... offspring . Hybrids , on the other hand , have their reproductive organs functionally impotent , as may be clearly seen in the state of the male element in both plants and animals ; though the organs themselves are perfect in structure ...
... offspring of species , and the so - called mongrel offspring of varieties . And , on the other hand , they agree most closely in very many important respects . I shall here discuss this subject with extreme brevity . The most important ...
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 |