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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... existing domesticated productions have varied. In the case of most of our anciently domesticated animals and plants, itisnotpossible tocometoany definite conclusion, whetherthey are descendedfrom oneor several wild species.The argument ...
... existing domesticated productions have varied. In the case of most of our anciently domesticated animals and plants, itisnotpossible tocometoany definite conclusion, whetherthey are descendedfrom oneor several wild species.The argument ...
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... existing speciesis thus colored and marked, sothat ineach separate breedthere might bea tendencytorevertto the very same colorsandmarkings. Or, secondly, that each breed, even the purest, has within a dozen, or at most within a score ...
... existing speciesis thus colored and marked, sothat ineach separate breedthere might bea tendencytorevertto the very same colorsandmarkings. Or, secondly, that each breed, even the purest, has within a dozen, or at most within a score ...
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... existing inthemindof any one at all acquainted with the subject that the owner ofeitherof them has deviatedin any one instancefrom the pure bloodof Mr. Bakewell's flock,and yet the difference between the sheep possessed by these two ...
... existing inthemindof any one at all acquainted with the subject that the owner ofeitherof them has deviatedin any one instancefrom the pure bloodof Mr. Bakewell's flock,and yet the difference between the sheep possessed by these two ...
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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