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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... perfect as , or slightly more perfect than , the other inhabitants of the same country with which it has to struggle for existence . And we see that this is the degree of perfection attained under nature . The en- demic productions of ...
... perfect even in that most perfect organ , the eye . If our reason leads us to admire with enthusiasm a multitude of inimitable contrivances in nature , this same reason tells us , though we may easily err on both sides , that some other ...
... perfect in structure , as far as the microscope reveals . In the first case the two sexual elements which go to form the embryo are perfect ; in the second case they are either not at all developed , or are imperfectly developed . This ...
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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 |