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 vi
... increase - Rapid increase of naturalised animals and plants - Nature of the checks to increase - Com- petition universal - Effects of climate - Protection from the number of individuals - Complex relations of all animals and plants ...
... increase - Rapid increase of naturalised animals and plants - Nature of the checks to increase - Com- petition universal - Effects of climate - Protection from the number of individuals - Complex relations of all animals and plants ...
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 12
... increased use or disuse of parts has had a more marked influence ; thus I find in the domestic duck that the bones of the wing weigh less and the bones of the leg more , in proportion to the whole skeleton , than do the same bones in ...
... increased use or disuse of parts has had a more marked influence ; thus I find in the domestic duck that the bones of the wing weigh less and the bones of the leg more , in proportion to the whole skeleton , than do the same bones in ...
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 37
... increasing size of the common gooseberry may be quoted . We see an astonishing improvement in many florists ' flowers , when the flowers of the present day are compared with drawings made only twenty or thirty years ago . When a race of ...
... increasing size of the common gooseberry may be quoted . We see an astonishing improvement in many florists ' flowers , when the flowers of the present day are compared with drawings made only twenty or thirty years ago . When a race of ...
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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