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 64
... inhabitants will al- most immediately undergo a change , and some species will probably be- come extinct . We may conclude , from what we have seen of the intimate and complex manner in which the inhabitants of each country are bound ...
... inhabitants will al- most immediately undergo a change , and some species will probably be- come extinct . We may conclude , from what we have seen of the intimate and complex manner in which the inhabitants of each country are bound ...
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 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 ...
Otras ediciones - Ver todas
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 beak beautiful become believe birds breeds cause characters civilised 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 given gradations greater number groups habits Hence hybrids important individuals inhabitants inherited insects instance instincts intermediate islands kind larvæ latter Lepidoptera less likewise living lower animals Malay Archipelago males mammæ mammals manner Marsupials modified monkeys natural selection naturalists nearly nest observed ocelli offspring organs Origin of Species ornaments perfect period pigeons plumage pollen present probably produced progenitor quadrupeds races Red Grouse relation remarks resemble rudimentary seeds sexes sexual selection shew shewn slight South America sterility stridulating structure supposed tail tion variability variations varieties various vary whilst whole widely wings young