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 97
... extinction . So little is this subject under- stood , that I have heard surprise repeatedly expressed at such great monsters as the Mastodon and the more ancient Dinosaurians having become extinct ; as if mere bodily strength gave ...
... extinction . So little is this subject under- stood , that I have heard surprise repeatedly expressed at such great monsters as the Mastodon and the more ancient Dinosaurians having become extinct ; as if mere bodily strength gave ...
Página 107
... extinct species can all be classed either in still existing groups , or between them . That the extinct forms of life help to fill up the intervals between existing genera , families , and orders , is certainly true ; but as this ...
... extinct species can all be classed either in still existing groups , or between them . That the extinct forms of life help to fill up the intervals between existing genera , families , and orders , is certainly true ; but as this ...
Página 110
... extinct . The three existing genera a1 , q1 , p1 , will form a small family ; b1 and ƒ11 a closely allied family or sub - family ; and o14 , e14 , m14 , a third family ... extinction and 110 [ CHAP . XI . AFFINITIES OF EXTINCT SPECIES .
... extinct . The three existing genera a1 , q1 , p1 , will form a small family ; b1 and ƒ11 a closely allied family or sub - family ; and o14 , e14 , m14 , a third family ... extinction and 110 [ CHAP . XI . AFFINITIES OF EXTINCT SPECIES .
Contenido
CONTENTS OF VOL | 1 |
CHAPTER X | 48 |
CHAPTER XII | 129 |
Derechos de autor | |
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Otras ediciones - Ver todas
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