On the Origin of Species by Means of Natural Selection, Or, The Preservation of Favoured Races in the Struggle for LifeAppleton, 1898 |
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Página 76
... marine 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 ...
... marine 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 ...
Página 82
... marine animals might be multiplied ; and here they would remain confined , until some of the species became adapted to a cooler climate , an were enable to double the Southern capes of Af- rica or Australia , and thus reach other and ...
... marine animals might be multiplied ; and here they would remain confined , until some of the species became adapted to a cooler climate , an were enable to double the Southern capes of Af- rica or Australia , and thus reach other and ...
Página 91
... marine shells and birds have remained unaltered . We can perhaps understand the apparently quicker rate of change in terrestrial and in more highly organised . productions compared with marine and lower produc- tions , by the more ...
... marine shells and birds have remained unaltered . We can perhaps understand the apparently quicker rate of change in terrestrial and in more highly organised . productions compared with marine and lower produc- tions , by the more ...
Página 101
... marine inhabitants of the world : we have not sufficient data to judge whether the productions of the land and of fresh water at distant points change in the same parallel manner . We may doubt whether they have thus changed : if the ...
... marine inhabitants of the world : we have not sufficient data to judge whether the productions of the land and of fresh water at distant points change in the same parallel manner . We may doubt whether they have thus changed : if the ...
Página 102
... marine forms of life are spoken of as having changed simultaneously throughout the world , it must not be supposed that this expression relates to the same year , or to the same century , or even that it has a very strict geological ...
... marine forms of life are spoken of as having changed simultaneously throughout the world , it must not be supposed that this expression relates to the same year , or to the same century , or even that it has a very strict geological ...
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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