The Origin of Species, Том 2Books, Incorporated, 1900 - Всего страниц: 365 |
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Стр. 331
... oceanic islands . I freely admit the former existence of many islands , now buried beneath the sea , which may have served as halting - places for plants and for many animals during their migration . In the coral- producing oceans such ...
... oceanic islands . I freely admit the former existence of many islands , now buried beneath the sea , which may have served as halting - places for plants and for many animals during their migration . In the coral- producing oceans such ...
Стр. 358
... oceanic islands ; and an herbaceous plant , which had no chance of suc- cessfully competing with the many fully developed trees growing on a continent , might , when established on an island , gain an advantage over other herbaceous ...
... oceanic islands ; and an herbaceous plant , which had no chance of suc- cessfully competing with the many fully developed trees growing on a continent , might , when established on an island , gain an advantage over other herbaceous ...
Стр. 359
... island ; and many islands situated at a much less distance are equally barren . The Falkland Islands , which are inhabited by a wolf - like fox , come nearest to an exception ; but this group cannot be considered as oceanic , as it lies ...
... island ; and many islands situated at a much less distance are equally barren . The Falkland Islands , which are inhabited by a wolf - like fox , come nearest to an exception ; but this group cannot be considered as oceanic , as it lies ...
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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