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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... common result ofchanged conditions than definite variability, and has probably played a more important part in the formation of our domestic races. We see in definite variability in the endless slight peculiarities which.
... common result ofchanged conditions than definite variability, and has probably played a more important part in the formation of our domestic races. We see in definite variability in the endless slight peculiarities which.
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... common rosesproducing mossroses— we clearly seethat thenature ofthe conditionsisof subordinate importance in comparison withthe nature of the organism in determining each particular form of variation; perhaps of not more importance ...
... common rosesproducing mossroses— we clearly seethat thenature ofthe conditionsisof subordinate importance in comparison withthe nature of the organism in determining each particular form of variation; perhaps of not more importance ...
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... common camel, preventedtheir domestication?Icannot doubt that ifotheranimals and plants, equal in number to our domesticated productions, and belongingto equally diverse classes and countries, were taken froma state of nature, and could ...
... common camel, preventedtheir domestication?Icannot doubt that ifotheranimals and plants, equal in number to our domesticated productions, and belongingto equally diverse classes and countries, were taken froma state of nature, and could ...
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... that ofthespecific distinction between the humped and common cattle, may, indeed, be looked uponas established by the admirable researches of Professor Rutimeyer. With respect to horses, from reasons which I cannot here give, I am.
... that ofthespecific distinction between the humped and common cattle, may, indeed, be looked uponas established by the admirable researches of Professor Rutimeyer. With respect to horses, from reasons which I cannot here give, I am.
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... common duck and wild rabbit. The doctrine of the originofour several domestic races from several aboriginal stocks, has been carried toan absurd extreme by some authors. They believe that every race which breeds true, let the ...
... common duck and wild rabbit. The doctrine of the originofour several domestic races from several aboriginal stocks, has been carried toan absurd extreme by some authors. They believe that every race which breeds true, let the ...
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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