The Origin of Species, Том 2Books, Incorporated, 1900 - Всего страниц: 365 |
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Стр. 401
... inherited at a corresponding not early period . But the case of the short- faced tumbler , which when twelve hours old possessed its proper characters , proves that this is not the universal rule ; for here the characteristic ...
... inherited at a corresponding not early period . But the case of the short- faced tumbler , which when twelve hours old possessed its proper characters , proves that this is not the universal rule ; for here the characteristic ...
Стр. 419
... inherited for many generations , may continue to be inherited for an almost infinite number of generations . On the other hand we have evi- dence that variability , when it has once come into play , does not cease under domestication ...
... inherited for many generations , may continue to be inherited for an almost infinite number of generations . On the other hand we have evi- dence that variability , when it has once come into play , does not cease under domestication ...
Стр. 429
... inherited at a corresponding not early period of life , we clearly see why the embryos of mammals , birds , reptiles , and fishes should be so closely similar and so unlike the adult forms . We may cease marvelling at the embryo of an ...
... inherited at a corresponding not early period of life , we clearly see why the embryos of mammals , birds , reptiles , and fishes should be so closely similar and so unlike the adult forms . We may cease marvelling at the embryo of an ...
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adapted admit affinity ancient animals appear Archipelago areas become believe belonging birds Cambrian characters classification climate closely allied species common continent creation crustaceans degree deposits descent with modification developed difficulty distant distinct species domestic doubt embryo Europe existing extinct facts faunas fertility flowers formations formerly forms fossil fresh-water Fritz Müller Gärtner genera genus geological period geological record Glacial period groups of species habits hybrids hybrids produced important INDIANENSIS individuals inhabitants inherited insects instance intermediate intervals land larvæ less living mammæ mammals manner marine Marsupials MDCCCXX migration modified descendants mongrels mountains natural selection naturalists nearly oceanic islands offspring parent peculiar perfect pistil plants pollen present probably produced progenitor quadrupeds reciprocal crosses regions remains remarked reproductive resemblance rocks rudimentary organs seeds SIGILLUM Silurian South America stage stamens sterility structure successive suppose terrestrial tertiary theory of natural tion variations varieties VERITAS whole widely different