The Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life, Volume 1 |
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Page 30
... believe that long - continued domestication eliminates this strong tendency to sterility in species . From the history of the dog , and of some other domestic animals , this conclusion is probably quite correct , if applied to species ...
... believe that long - continued domestication eliminates this strong tendency to sterility in species . From the history of the dog , and of some other domestic animals , this conclusion is probably quite correct , if applied to species ...
Page 34
... believe that the fuller's teasel , with its hooks , which cannot be rivalled by any mechanical contrivance , is only a variety of the wild Dipsacus ; and this amount of change may have suddenly arisen in a seedling . So it has probably ...
... believe that the fuller's teasel , with its hooks , which cannot be rivalled by any mechanical contrivance , is only a variety of the wild Dipsacus ; and this amount of change may have suddenly arisen in a seedling . So it has probably ...
Page 36
... make great improvements ; if he wants any of these qualities , he will assuredly fail . Few would readily believe in the If natural capacity and years of practice requisite to become even 36 [ CHAP . I. SELECTION BY MAN .
... make great improvements ; if he wants any of these qualities , he will assuredly fail . Few would readily believe in the If natural capacity and years of practice requisite to become even 36 [ CHAP . I. SELECTION BY MAN .
Page 40
... believe that King Charles's spaniel has been unconsciously modified to a large extent since the time of that monarch . Some highly competent authorities are convinced that the setter is directly derived from the spaniel , and has pro ...
... believe that King Charles's spaniel has been unconsciously modified to a large extent since the time of that monarch . Some highly competent authorities are convinced that the setter is directly derived from the spaniel , and has pro ...
Page 42
... believe , the well - known fact , that in a number of cases we cannot recognise , and therefore do not know , the wild parent- stocks of the plants which have been longest cultivated in our flower and kitchen gardens . If it has taken ...
... believe , the well - known fact , that in a number of cases we cannot recognise , and therefore do not know , the wild parent- stocks of the plants which have been longest cultivated in our flower and kitchen gardens . If it has taken ...
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Common terms and phrases
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 divergence 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 structure struggle supposed swimbladder tend tendency tion transitional tree variability variations varieties vary widely wings young