The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Volumen1 |
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Página 108
Generally , the most vigorous males , those which are best fitted for their places in
nature , will leave most progeny . But in many cases , victory depends not so
much on general vigour , as on having special weapons , confined to the male
sex .
Generally , the most vigorous males , those which are best fitted for their places in
nature , will leave most progeny . But in many cases , victory depends not so
much on general vigour , as on having special weapons , confined to the male
sex .
Página 109
is , perhaps , severest between the 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
...
is , perhaps , severest between the 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
...
Página 110
Calver and transmitted to the males alone or to both sexes at corresponding ages
; but I have not space here to enter on this subject . Thus it is , as I believe , that
when the males and females of any animal have the same general habits of life ...
Calver and transmitted to the males alone or to both sexes at corresponding ages
; but I have not space here to enter on this subject . Thus it is , as I believe , that
when the males and females of any animal have the same general habits of life ...
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Contenido
INTRODUCTION | 1 |
VARIATION UNDER DOMESTICATION | 7 |
CHAPTER II | 51 |
Derechos de autor | |
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Otras ediciones - Ver todas
The Origin of Species by Means of Natural Selection: Or, The ..., Volumen2 Charles Darwin Vista de fragmentos - 1972 |
The Origin of Species by Means of Natural Selection: Or, the Preservation of ... Charles Darwin Sin vista previa disponible - 2016 |
Términos y frases comunes
according acquired action adapted advantage amount animals appear beak become bees believe birds breeds called cause cells chapter characters climate closely colour common considered continued crossed descendants developed difficulty distinct domestic doubt effects eggs existence extinct extremely facts favourable flowers forms genera genus give given greater groups habits Hence highly important improved increase individuals inhabitants inherited insects instance instincts intermediate kind known laws less living look males manner marked means modified namely natural selection naturalists nearly nest never object observed occasionally occur organs origin parent perfect period pigeons plants points present preserved principle probably produced races rank rarely reason relation remarked resemble respect result seeds seems seen shown side similar slight sometimes species structure struggle supposed tend tion tree variability variations varieties vary whole widely young