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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... look attheinheritance ofevery character whatever as the rule, and noninheritanceas the anomaly. The laws governing inheritance are for themost partunknown; no one can say why the same peculiarity in different individuals of the ...
... look attheinheritance ofevery character whatever as the rule, and noninheritanceas the anomaly. The laws governing inheritance are for themost partunknown; no one can say why the same peculiarity in different individuals of the ...
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... look to the hereditary varieties or races of our domestic animals and plants, and compare them with closely allied species, we generallyperceivein each domesticrace,as already remarked, lessuniformityof character thanintrue species ...
... look to the hereditary varieties or races of our domestic animals and plants, and compare them with closely allied species, we generallyperceivein each domesticrace,as already remarked, lessuniformityof character thanintrue species ...
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... look further than to mere variability. We can notsuppose that all the breeds weresuddenly producedasperfect and asuseful as wenow seethem; indeed, in many cases,we know that this has not been their history. The key is man's powerof ...
... look further than to mere variability. We can notsuppose that all the breeds weresuddenly producedasperfect and asuseful as wenow seethem; indeed, in many cases,we know that this has not been their history. The key is man's powerof ...
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... Look at the common oak, how closely it has beenstudied;yet a German author makes morethan a dozen species out offorms, whichare almost universally considered by other botanists tobe varieties; and in this country the highest botanical ...
... Look at the common oak, how closely it has beenstudied;yet a German author makes morethan a dozen species out offorms, whichare almost universally considered by other botanists tobe varieties; and in this country the highest botanical ...
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... look at individual differences, though ofsmall interest to the systematist,as ofthehighest importance forus,as being the firststeptowards such slightvarietiesas arebarely thought worth recordingin works on natural history. AndIlookat ...
... look at individual differences, though ofsmall interest to the systematist,as ofthehighest importance forus,as being the firststeptowards such slightvarietiesas arebarely thought worth recordingin works on natural history. AndIlookat ...
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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