On 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 23
... Hence if man goes on selecting , and thus augmenting , any peculiarity , he will almost certainly unintentionally modify other parts of the structure , owing to the mysterious laws of the correlation of growth . ] The result of the ...
... Hence if man goes on selecting , and thus augmenting , any peculiarity , he will almost certainly unintentionally modify other parts of the structure , owing to the mysterious laws of the correlation of growth . ] The result of the ...
Page 25
... Hence [ it has been argued that no deductions can be drawn from domestic races to species in a state of nature ] I have in vain endeavoured to discover on what decisive facts the above statement has so often and so boldly been made ...
... Hence [ it has been argued that no deductions can be drawn from domestic races to species in a state of nature ] I have in vain endeavoured to discover on what decisive facts the above statement has so often and so boldly been made ...
Page 32
... Hence the supposed aboriginal stocks must either still exist in the countries where they were originally domesti- cated , and yet be unknown to ornithologists ; and this considering their size , habits , and remarkable characters ...
... Hence the supposed aboriginal stocks must either still exist in the countries where they were originally domesti- cated , and yet be unknown to ornithologists ; and this considering their size , habits , and remarkable characters ...
Page 33
... Hence it must be assumed not only that half - civilized man succeeded in thoroughly domesticating several species , but that he intentionally or by chance picked out extraordinarily abnormal species ; and further , that these very ...
... Hence it must be assumed not only that half - civilized man succeeded in thoroughly domesticating several species , but that he intentionally or by chance picked out extraordinarily abnormal species ; and further , that these very ...
Page 45
... hence the Toulouse and the common breed , which differ only in colour , that most fleeting of characters , have lately been exhibited as distinct at our poultry - shows . I think these views further explain what has sometimes been ...
... hence the Toulouse and the common breed , which differ only in colour , that most fleeting of characters , have lately been exhibited as distinct at our poultry - shows . I think these views further explain what has sometimes been ...
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Common terms and phrases
accumulated adapted affinities allied species America analogous ancient animals appear archipelago become bees believe birds breeds cause cells characters cirripedes climate closely allied colour continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo endemic existing exterminated extinct extremely facts favourable fertilised fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids hybrids produced important increase individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ laws less living males mammals manner migration modification modified descendants natural selection naturalists nearly nest occasionally offspring organic organisation origin of species perfect pigeons plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemble rock-pigeon rudimentary seeds sexual sexual selection Silurian slight sometimes South America sterility structure struggle successive supposed swimbladder tend theory variability variations varieties vary whole widely