On The Origin Of SpeciesHarper Collins, 22 июл. 2014 г. - Всего страниц: 336 Published in 1859, The Origin of Species by Charles Darwin introduced the theory of natural selection to a newly-receptive public. As a young naturalist on the second voyage of HMS Beagle (1831-36), Darwin collected many plant and animal specimens, and it was his close examination of them that eventually led to his theories on evolution and natural selection. HarperPerennial Classics brings great works of literature to life in digital format, upholding the highest standards in ebook production and celebrating reading in all its forms. Look for more titles in the HarperPerennial Classics collection to build your digital library. |
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... or disuse of parts has had a more marked influence; thus I find in the domestic duck that the bones of the wing weigh less and the bones of the leg more, in proportion to the whole skeleton, than do the same bones in.
... or disuse of parts has had a more marked influence; thus I find in the domestic duck that the bones of the wing weigh less and the bones of the leg more, in proportion to the whole skeleton, than do the same bones in.
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... less advanced civilisation, during which the domesticated animals, kept by different tribes in differentdistricts, might have varied and given rise to distinct races. Since thediscovery offlint tools inthesuperficial formations of ...
... less advanced civilisation, during which the domesticated animals, kept by different tribes in differentdistricts, might have varied and given rise to distinct races. Since thediscovery offlint tools inthesuperficial formations of ...
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... the normal number inall the membersof the great pigeon family: these feathers are keptexpanded and are carried so erect that in good birds the head and tail touch: the oil gland is quite aborted. Several other less distinct breeds might.
... the normal number inall the membersof the great pigeon family: these feathers are keptexpanded and are carried so erect that in good birds the head and tail touch: the oil gland is quite aborted. Several other less distinct breeds might.
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Charles Darwin. gland is quite aborted. Several other less distinct breeds might be specified. In the skeletons of theseveral breeds,the development ofthe bones of the face, in length and breadth and curvature, differs enormously.The ...
Charles Darwin. gland is quite aborted. Several other less distinct breeds might be specified. In the skeletons of theseveral breeds,the development ofthe bones of the face, in length and breadth and curvature, differs enormously.The ...
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... less and less,asin each succeeding generation there willbeless of the foreign blood; but when there hasbeen no cross, and there is a tendency in the breed to revert to a character which was lost during some former generation, this ...
... less and less,asin each succeeding generation there willbeless of the foreign blood; but when there hasbeen no cross, and there is a tendency in the breed to revert to a character which was lost during some former generation, this ...
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Другие издания - Просмотреть все
The Origin of Species: By Means of Natural Selection Or the Preservation of ... Charles Darwin Недоступно для просмотра - 2011 |
On the Origin of Species: By Means of Natural Selection; Or the Preservation ... Charles Darwin Недоступно для просмотра - 2017 |
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according adapted admit advantage allied America amount animals appear become believe belonging birds breeds cause certain characters climate closely color common compared complex considerable considered continued crossed descendants developed difficulty distinct domestic doubt effects existing extinct extremely facts favourable fertility flowers formation forms genera genus geological give given greater groups habits Hence hybrids important increase individuals inhabitants inherited insects instance instincts intermediate inthe islands kind known laws less living look manner means modification namely natural selection naturalists nearly observed occasionally occur offspring ofthe onthe organs parent perfect period plants points present preserved principle probably produced remarked represented resemblance respect seeds seems seen separated shown similar single slight sometimes species stage sterility structure successive suppose theory thesame tothe variability variations varieties various vary whole widely young