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
... 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 throughout nature - Struggle for life most ...
... 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 throughout nature - Struggle for life most ...
Page xvi
... animals tend to vary in some degree , and , secondly , that agri- culturists improve their domesticated animals by selec- tion ; and then , he adds , but what is done in this latter case " by art , seems to be done with equal efficacy ...
... animals tend to vary in some degree , and , secondly , that agri- culturists improve their domesticated animals by selec- tion ; and then , he adds , but what is done in this latter case " by art , seems to be done with equal efficacy ...
Page 4
... animals and of cultivated plants would offer the best chance of making out this obscure problem . Nor have I been disappointed ; in this and in all other perplexing cases I have invariably found that our knowledge , imperfect though it ...
... animals and of cultivated plants would offer the best chance of making out this obscure problem . Nor have I been disappointed ; in this and in all other perplexing cases I have invariably found that our knowledge , imperfect though it ...
Page 5
... animal and vegetable kingdoms . As many more in- dividuals of each species are born than can possibly survive ; and ... animals ; thirdly , Hybridism , or the infertility of species and the fertility of varieties when intercrossed ; and ...
... animal and vegetable kingdoms . As many more in- dividuals of each species are born than can possibly survive ; and ... animals ; thirdly , Hybridism , or the infertility of species and the fertility of varieties when intercrossed ; and ...
Page 7
... animals , one of the first points which strikes us is , that they generally differ more from each other than do the individuals of any one species or variety in a state of nature . And if we reflect on the vast diversity of the plants ...
... animals , one of the first points which strikes us is , that they generally differ more from each other than do the individuals of any one species or variety in a state of nature . And if we reflect on the vast diversity of the plants ...
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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