The Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life |
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Page 84
... pigeons , that is , not breeding or willingly perching on trees . But besides C. livia , with its geographical sub- species , only two or three other species of rock - pigeons are known ; and these have not any of the characters of the ...
... pigeons , that is , not breeding or willingly perching on trees . But besides C. livia , with its geographical sub- species , only two or three other species of rock - pigeons are known ; and these have not any of the characters of the ...
Page 87
... pigeons have been watched , and tended with the utmost care , and loved by many people . They have been domesticated for thousands of years in several quarters of the world ; the earliest known record of pigeons is in the fifth Egyptian ...
... pigeons have been watched , and tended with the utmost care , and loved by many people . They have been domesticated for thousands of years in several quarters of the world ; the earliest known record of pigeons is in the fifth Egyptian ...
Page 88
... pigeons can be easily mated for life ; and thus different breeds can be kept together in the same aviary . I have discussed the probable origin of domestic pigeons at some , yet quite insufficient , length ; because when I first kept ...
... pigeons can be easily mated for life ; and thus different breeds can be kept together in the same aviary . I have discussed the probable origin of domestic pigeons at some , yet quite insufficient , length ; because when I first kept ...
Contents
EDITORS INTRODUCTION | 11 |
NOTE ON THIS EDITION | 49 |
INTRODUCTION | 65 |
Copyright | |
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The Origin of Species by Means of Natural Selection: Or, the Preservation of ... Charles Darwin No preview available - 2014 |
Common terms and phrases
accumulated adapted affinities allied species America ancient animals appear become bees believe birds breeds cause cells chapter characters cirripedes climate closely allied colour continuous crossed crustaceans Darwin degree developed difficulty distinct species domestic doubt eggs embryo Europe existence exterminated extinct extremely facts favourable fertility flowers formation forms fossil genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate larvae less living male mammals manner Marsupials migration modification modified descendants natural selection naturalists nearly nest offspring organisation organs Origin Origin of Species palaeozoic perfect pigeons pistil plants pollen present principle probably produced progenitor quadrupeds ranked remarked reproductive resemblance rudimentary seeds seems sexual selection Silurian slight South America sterility structure struggle successive supposed tend theory tion trees variability variations varieties vary whole widely wings