The Origin of Species by Means of Natural Selection, Or, The Preservation of Favored Races in the Struggle for LifeWerner Company, Book Manufacturers, 1900 - 538ÆäÀÌÁö |
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... objects to agriculturists speaking of the potent effects of man's selection ; and in this case the individual differences given by nature , which man for some object selects , must of necessity first occur . Others have objected that ...
... objects to agriculturists speaking of the potent effects of man's selection ; and in this case the individual differences given by nature , which man for some object selects , must of necessity first occur . Others have objected that ...
251 ÆäÀÌÁö
... object ; and that the idea of what is beautiful , is not innate or unalterable . We see this , for instance , in the men of different races admiring an entirely different standard of beauty in their women . If beautiful objects had been ...
... object ; and that the idea of what is beautiful , is not innate or unalterable . We see this , for instance , in the men of different races admiring an entirely different standard of beauty in their women . If beautiful objects had been ...
283 ÆäÀÌÁö
... objects , such as green or decayed leaves , dead twigs , bits of lichen , flowers , spines , excrement of birds , and ... object commonly found in the stations frequented by them . Nor is this at all improbable , considering the almost ...
... objects , such as green or decayed leaves , dead twigs , bits of lichen , flowers , spines , excrement of birds , and ... object commonly found in the stations frequented by them . Nor is this at all improbable , considering the almost ...
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adapted advantage allied animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely colour common crossed cuckoo degree descendants developed difficulty distinct species disuse 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 individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamell©¡ large number larger genera larv©¡ less males manner Melipona Mivart modified natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species parent perfect period pigeons pollen pollen-grains present preserved prey 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 tree variability variations varieties vary widely wings young