The Origin of Species by Means of Natural Selection,: Or the Preservation of Favoured Races in the Struggle for LifeAppleton, 1898 - 432 páginas |
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Página vi
... inhabitants of oceanic islands — Absence of Batrachians and of terrestrial Mam- mals - On the relation of the inhabitants of islands to those of the nearest mainland - On colonisation from the nearest source with subsequent modification ...
... inhabitants of oceanic islands — Absence of Batrachians and of terrestrial Mam- mals - On the relation of the inhabitants of islands to those of the nearest mainland - On colonisation from the nearest source with subsequent modification ...
Página 57
... inhabitants of the same country being already so well adapted to each other , that new places in the polity of nature do not occur until after long intervals , due to the occurrence of physical changes of some kind , or through the ...
... inhabitants of the same country being already so well adapted to each other , that new places in the polity of nature do not occur until after long intervals , due to the occurrence of physical changes of some kind , or through the ...
Página 65
... inhabitants will decrease ( excepting on the shores of a continent when first broken up into an archipelago ) , and consequently during subsidence , though there will be much extinction , few new varie- ties or species will be formed ...
... inhabitants will decrease ( excepting on the shores of a continent when first broken up into an archipelago ) , and consequently during subsidence , though there will be much extinction , few new varie- ties or species will be formed ...
Página 67
... inhabitants of Europe dur- ing the glacial epoch , which forms only a part of one . whole geological period ; and likewise to reflect on the changes of level , on the extreme change of climate , and on the great lapse of time , all ...
... inhabitants of Europe dur- ing the glacial epoch , which forms only a part of one . whole geological period ; and likewise to reflect on the changes of level , on the extreme change of climate , and on the great lapse of time , all ...
Página 76
... inhabitants of the archi- pelago now range thousands of miles beyond its con- fines ; and analogy plainly leads to the belief that it would be chiefly these far - ranging species , though only some of them , which would oftenest produce ...
... inhabitants of the archi- pelago now range thousands of miles beyond its con- fines ; and analogy plainly leads to the belief that it would be chiefly these far - ranging species , though only some of them , which would oftenest produce ...
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Términos y frases comunes
admit affinity allied species ancient animals appear Archipelago arctic areas become believe birds Cambrian changes characters cies classification climate closely allied common progenitor continent crustaceans degree deposited difficulty distant distinct species domestic doubt embryo eral Europe existing extinct fact faunas fertilised 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 individuals inhabitants inherited insects instance intermediate intervals land larvæ less living mammals manner marine Marsupials migration modified descendants mongrels mountains natural selection naturalists nearly occur oceanic islands offspring organisation parent parent-form peculiar perfect pistil plants pollen present probably produced quadrupeds reciprocal crosses regions remains remarked reproductive resemblance rocks rudimentary organs sediment seeds Silurian South America stage stamens sterility structure successive suppose terrestrial tertiary theory tion variations varieties whilst widely different wings