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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... young of the same litter, and in seedlings fromthesame seedcapsule.Atlong intervals of time, out of millions ofindividuals reared inthe samecountryandfed on nearly thesamefood, deviations of structure so strongly pronounced asto deserve ...
... young of the same litter, and in seedlings fromthesame seedcapsule.Atlong intervals of time, out of millions ofindividuals reared inthe samecountryandfed on nearly thesamefood, deviations of structure so strongly pronounced asto deserve ...
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... young; whereas, carnivorous birds,with the rarest exception, hardly ever lay fertileeggs. Many exoticplants have pollen utterlyworthless, inthe samecondition asinthemost sterile hybrids. When, on the one hand, we see domesticated ...
... young; whereas, carnivorous birds,with the rarest exception, hardly ever lay fertileeggs. Many exoticplants have pollen utterlyworthless, inthe samecondition asinthemost sterile hybrids. When, on the one hand, we see domesticated ...
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... young naturalist commences the study of agroup of organisms quiteunknown tohimhe is at firstmuch perplexed in determining what differences to consider as specific andwhatas varietal; for he knowsnothingof the amountand kind of variation ...
... young naturalist commences the study of agroup of organisms quiteunknown tohimhe is at firstmuch perplexed in determining what differences to consider as specific andwhatas varietal; for he knowsnothingof the amountand kind of variation ...
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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