The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life and The Descent of Man and Selection in Relation to SexModern library, 1936 - 1000 páginas |
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Página 82
... inhabitants . The occurrence of such places will often depend on physical changes , which generally take place very slowly , and on the im- migration of better adapted forms being prevented . As some few of the old inhabitants become ...
... inhabitants . The occurrence of such places will often depend on physical changes , which generally take place very slowly , and on the im- migration of better adapted forms being prevented . As some few of the old inhabitants become ...
Página 152
... inhabitants , and consequently leads to success in the battle for life , only in accordance with the standard of that particular country . Hence the inhabitants of one country , generally the smaller one , often yield to the inhabitants ...
... inhabitants , and consequently leads to success in the battle for life , only in accordance with the standard of that particular country . Hence the inhabitants of one country , generally the smaller one , often yield to the inhabitants ...
Página 290
... inhabitants of the north , these would take the places of the former inhabitants of the temperate regions . The latter , at the same time , would travel further and further southward , unless they were stopped by barriers , in which ...
... inhabitants of the north , these would take the places of the former inhabitants of the temperate regions . The latter , at the same time , would travel further and further southward , unless they were stopped by barriers , in which ...
Contenido
INTRODUCTION | 3 |
VARIATION UNDER DOMESTICATION | 15 |
CHAPTER II | 38 |
Derechos de autor | |
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The Origin of Species by Means of Natural Selection: Or, The Preservation of ... Charles Darwin Vista de fragmentos - 1936 |
The Origin of Species by Means of Natural Selection: Or, The Preservation of ... Charles Darwin Vista de fragmentos - 1936 |
The Origin of Species by Means of Natural Selection: Or, The Preservation of ... Charles Darwin Vista de fragmentos - 1936 |
Términos y frases comunes
acquired adult allied apes appear Argus pheasant beak beautiful become believe birds breeds cause characters closely colour common confined crossed crustaceans degree descended developed distinct species domestic doubt eggs existing extinct extremely fact favourable feathers female fertility fishes formation forms Fritz Müller genera genus gradations greater number groups habits horns hybrids important individuals inhabitants inherited insects instance instincts intermediate islands kind larvæ latter Lepidoptera less likewise living Malay Archipelago males mammæ mammals manner Marsupials modified monkeys natural selection naturalists nearly nest observed occur ocelli offspring organs Origin of Species ornaments perfect period pigeons plants plumage pollen possess present probably produced progenitor quadrupeds races relation remarks resemble rudimentary seeds sexes sexual selection shew shewn slight South America sterility stridulating structure supposed tail tion transmitted variability variations varieties various vary whilst whole widely wings young Zoolog