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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... given throughout this work . It need not be supposed that all varieties or incipient species necessarily attain the ... given for the sake of con- venience to a set of individuals closely resembling each other , and that it does not ...
... given period favourable variations . We have evidence of this , in the facts given in the second chapter , showing that it is the common species which afford the greatest number of recorded varieties , or incipient species . Hence ...
... given several remarkable cases of differences in nests of the same species in the northern and southern United States . Fear of any particular enemy is certainly an instinctive quality , as may be seen in nestling birds , though it is ...
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 |