The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Volumen1AMS Press, 1972 - 479 páginas This is a reproduction of the original artefact. Generally these books are created from careful scans of the original. This allows us to preserve the book accurately and present it in the way the author intended. Since the original versions are generally quite old, there may occasionally be certain imperfections within these reproductions. We're happy to make these classics available again for future generations to enjoy! |
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Página 108
... male salmons have been observed fighting all day long ; male stag - beetles sometimes bear wounds from the huge mandibles of other males ; the males of certain hymenop- terous insects have been frequently seen by that inimit- able ...
... male salmons have been observed fighting all day long ; male stag - beetles sometimes bear wounds from the huge mandibles of other males ; the males of certain hymenop- terous insects have been frequently seen by that inimit- able ...
Página 109
... males of polygamous animals , and these seem oftenest provided with special weapons . The males of carnivorous animals are already well armed ; though to them and to others , special means of defence may be given through means of sexual ...
... males of polygamous animals , and these seem oftenest provided with special weapons . The males of carnivorous animals are already well armed ; though to them and to others , special means of defence may be given through means of sexual ...
Página 160
... males alone , in their struggles or rivalry with other males ; and these characters will be transmitted to one sex or to both sexes , according to the form of inheritance which prevails . Whether natural selection has really thus acted ...
... males alone , in their struggles or rivalry with other males ; and these characters will be transmitted to one sex or to both sexes , according to the form of inheritance which prevails . Whether natural selection has really thus acted ...
Contenido
CHAPTER I | 5 |
VARIATION UNDER NATURE | 51 |
Its bearing on natural selectionThe term used in a wide sense | 75 |
Derechos de autor | |
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The Origin of Species by Means of Natural Selection: Or, the Preservation of ... Charles Darwin Sin vista previa disponible - 2016 |
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Términos y frases comunes
acquired adapted advantage allied analogous animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely colour common crossed cuckoo degree developed difficulty distinct species disuse domestic animals domestic races doubt effects eggs existence extinct extremely facts favourable females flowers forms Fritz Müller genera genus giraffe gradations greater number groups habits Hence hermaphrodites hive-bee important improved increase in number individual differences inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ large number larger genera larvæ less likewise males manner Melipona Mivart natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species perfect period pigeons pollen pollen-grains present preserved principle probably produced progenitor quadrupeds rank Red Grouse relation remarked resemble rock-pigeon seeds sexes sexual sexual selection slight stamens striped structure struggle supposed swimbladder tend tendency tion transitional tree variability variations varieties vary widely wings young