The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Volumen2AMS Press, 1972 |
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Página 221
... similar exciting causes in a similar manner ; and this would obviously aid in the acquirement through natural selection of parts or organs , strikingly like each other , independently of their direct inheritance from a common progenitor ...
... similar exciting causes in a similar manner ; and this would obviously aid in the acquirement through natural selection of parts or organs , strikingly like each other , independently of their direct inheritance from a common progenitor ...
Página 242
... similar bones in the hand of a man , wing of a bat , and fin of a porpoise , are related to similar conditions of life . No one supposes that the stripes on the whelp of a lion , or the spots on the young blackbird , are of any use to ...
... similar bones in the hand of a man , wing of a bat , and fin of a porpoise , are related to similar conditions of life . No one supposes that the stripes on the whelp of a lion , or the spots on the young blackbird , are of any use to ...
Página 291
... similar framework of bones in the hand of a man , wing of a bat , fin of the porpoise , and leg of the horse , —the same number of vertebræ forming the neck of the giraffe and of the elephant , —and innumerable other such facts , at ...
... similar framework of bones in the hand of a man , wing of a bat , fin of the porpoise , and leg of the horse , —the same number of vertebræ forming the neck of the giraffe and of the elephant , —and innumerable other such facts , at ...
Contenido
CONTENTS OF VOL | 1 |
CHAPTER X | 48 |
CHAPTER XII | 129 |
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 - 1962 |
The Origin of Species by Means of Natural Selection: Or, The Preservation of ... Charles Darwin Vista de fragmentos - 1963 |
Términos y frases comunes
accumulated adapted admit adult affinity allied species ancient animals appear Archipelago arctic areas become beds believe birds breeds Cambrian changes characters classification climate closely allied continent crustaceans degree deposited difficulty distant distinct species domestic doubt embryo 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 seeds Silurian slight South America species belonging stage stamens sterility structure successive suppose terrestrial tertiary tion variations varieties whilst widely different wings