The Origin of Species by Means of Natural Selection: Or the Preservation of Favoured Races in the Struggle for LifePenguin UK, 1982 M07 29 - 480 páginas With his revolutionary work The Origin of Species Charles Darwin overthrew contemporary beliefs about Divine Providence and the beginnings of life on earth. Written for the general public of the 1850s, it is a rigorously documented but highly readable account of the scientific theory that now lies at the root of our present attitude to the universe. Challenging notions such as the fixity of species with the idea of natural selection, and setting forth the results of pioneering work on the ecology of animals and plants, it made a lasting contribution to philosophical and scientific thought. |
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... inhabitants of oceanic islands –Absence ofBatrachians and of terrestrial Mammals – On therelation oftheinhabitants of islandsto those ofthe nearest mainland– On colonisationfrom the nearest source with subsequent modification –Summary ...
... inhabitants of oceanic islands –Absence ofBatrachians and of terrestrial Mammals – On therelation oftheinhabitants of islandsto those ofthe nearest mainland– On colonisationfrom the nearest source with subsequent modification –Summary ...
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... inhabitants could always tell from which island a tortoise had come?The more closely different species resembled each other inadjacent areasorin different epochsin thesame area,the more likelydid it seem thatthose species might sharea ...
... inhabitants could always tell from which island a tortoise had come?The more closely different species resembled each other inadjacent areasorin different epochsin thesame area,the more likelydid it seem thatthose species might sharea ...
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... inhabitants. This assumption was challenged by the school ofEnglish geologists,known as 'uniformitarians', of whom Lyell, inthe eighteen-thirties, wasthechief protagonist. Contradicting those geologistswho explained theformoftheearth ...
... inhabitants. This assumption was challenged by the school ofEnglish geologists,known as 'uniformitarians', of whom Lyell, inthe eighteen-thirties, wasthechief protagonist. Contradicting those geologistswho explained theformoftheearth ...
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... inhabitants becoming slowly modified; the mutual relations of manyof theother inhabitants beingthus disturbed, (pp.152–3). The underlying reason,then, forthe growth ofnew species and varietiesis'that the greatest amount oflifecan be ...
... inhabitants becoming slowly modified; the mutual relations of manyof theother inhabitants beingthus disturbed, (pp.152–3). The underlying reason,then, forthe growth ofnew species and varietiesis'that the greatest amount oflifecan be ...
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... donewith equal efficacy,though more slowly,by nature, in the formation of varieties of mankind, fitted forthe country which they inhabit. Ofthe accidental varieties ofman, which would occur among thefirst few and scattered inhabitants of.
... donewith equal efficacy,though more slowly,by nature, in the formation of varieties of mankind, fitted forthe country which they inhabit. Ofthe accidental varieties ofman, which would occur among thefirst few and scattered inhabitants of.
Contenido
INTRODUCTION | |
CHAPTER | |
ranging muchdiffused andcommon speciesvary most Species | |
CHAPTER FOUR | |
DIFFICULTIES ON THEORY | |
INSTINCT | |
making instinct Difficulties on the theory of the Natural | |
appearance in the lowest known fossiliferous strata | |
CHAPTER ELEVEN | |
Present distribution cannot be accounted for by differencesin physical conditions Importance of barriers Affinityof the productions ofthe same contin... | |
Distribution of freshwater productions On the inhabitants | |
Difficulties onthe theoryof | |
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On the Origin of Species by Means of Natural Selection Charles Darwin Sin vista previa disponible - 2016 |
Términos y frases comunes
accumulated adapted advantage allied America amount animals appear authors become believe birds breeds bythe cause changes chapter characters climate closely common compared considered continuous crossed Darwin descendants developed difficulty distinct domestic doubt effects evidence existing explained extinct extremely facts families favourable fertility flowers formations forms genera genus geological give given greater groups habits hand havebeen Hence hybrids important improved increase individuals inhabitants inherited insects instance instincts intermediate inthe islands kinds known less living manner means migration modification namely natural selection naturalists nearly observed occasionally occur offspring ofthe onthe organs Origin parent perfect perhaps period plants points present principle probably produced range reason remarked represented resemble seeds seems separated single slight sometimes species sterility structure struggle successive supposed thatthe theory thesame tothe understand variability variations varieties vary whole widely