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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... habits and structure . - It has been asked by the opponents of such views as I hold , how , for instance , a land carnivorous animal could have been converted into one with aquatic habits ; for how could the animal in its transitional ...
... habits . But it is difficult to tell , and immaterial for us , whether habits generally change first and structure afterwards ; or whether slight modifications of structure lead to changed habits ; both probably often change almost ...
... habits , or have diversified habits , with some habits very unlike those of its nearest con- geners . Hence we can understand , bearing in mind that each organic being is trying to live wherever it can live , how it has arisen that ...
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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 |