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 5
... increase , will be considered . This is the doctrine of Malthus , applied to the whole animal and vegetable kingdoms . As many more in- dividuals of each species are born than can possibly survive ; and as , consequently , there is a ...
... increase , will be considered . This is the doctrine of Malthus , applied to the whole animal and vegetable kingdoms . As many more in- dividuals of each species are born than can possibly survive ; and as , consequently , there is a ...
Page 16
... increased length of the horns in the offspring from a short - horned cow by a long- horned bull , though appearing late in life , is clearly due to the male element . Having alluded to the subject of reversion , I may here refer to a ...
... increased length of the horns in the offspring from a short - horned cow by a long- horned bull , though appearing late in life , is clearly due to the male element . Having alluded to the subject of reversion , I may here refer to a ...
Page 40
... increased in weight and in early maturity , compared with the stock formerly kept in this country . By comparing the accounts given in various old treatises of the former and present state of carrier and tumbler pigeons in Britain ...
... increased in weight and in early maturity , compared with the stock formerly kept in this country . By comparing the accounts given in various old treatises of the former and present state of carrier and tumbler pigeons in Britain ...
Page 42
... increased size and beauty which we now see in the varieties of the heartsease , rose , pelargonium , dahlia , and other plants , when compared with the older varieties or with their parent - stocks . No one would ever expect to get a ...
... increased size and beauty which we now see in the varieties of the heartsease , rose , pelargonium , dahlia , and other plants , when compared with the older varieties or with their parent - stocks . No one would ever expect to get a ...
Page 50
... increased use or disuse of parts . The final result is thus rendered infinitely complex . In some cases the intercrossing of aboriginally distinct species appears to have played an important part in the origin of our breeds . When ...
... increased use or disuse of parts . The final result is thus rendered infinitely complex . In some cases the intercrossing of aboriginally distinct species appears to have played an important part in the origin of our breeds . When ...
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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