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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Charles Darwin. group , the later and more highly perfected sub - groups , from branching out and seizing on many new places in the polity of Nature , will constantly tend to supplant and destroy the earlier and less improved sub - groups ...
... groups as they now are . Some writers have objected to any extinct species or group of species being considered as intermediate be- tween living species or groups . If by this term it is meant that an extinct form is directly ...
Charles Darwin. descendants , and thus new sub - groups and groups are formed . As these are formed , the species of the less vigorous groups , from their inferiority inherited from a common progenitor , tend to become extinct together ...
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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 |