On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life |
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Page 10
... appear- ance and disappearance as do single species - On Extinction- On simultaneous changes in the forms of life throughout the world - On the affinities of extinct species to each other and to living species - On the state of ...
... appear- ance and disappearance as do single species - On Extinction- On simultaneous changes in the forms of life throughout the world - On the affinities of extinct species to each other and to living species - On the state of ...
Page 20
... appearing to be far more susceptible than any other part of the organisation , to the action of any change in the conditions of life . Nothing is more easy than to tame an animal , and few things more difficult than to get it to breed ...
... appearing to be far more susceptible than any other part of the organisation , to the action of any change in the conditions of life . Nothing is more easy than to tame an animal , and few things more difficult than to get it to breed ...
Page 22
... appears to be directly due to such conditions ; but in some cases it can be shown that quite opposite conditions produce similar changes of structure . [ Nevertheless some slight amount of change may , I think , be attributed to the ...
... appears to be directly due to such conditions ; but in some cases it can be shown that quite opposite conditions produce similar changes of structure . [ Nevertheless some slight amount of change may , I think , be attributed to the ...
Page 23
... appears that white sheep and pigs are differently affected from coloured individuals by certain vegetable poisons : Professor Wyman has recently communicated to me a good illustration of this fact ; on asking some farmers in Florida how ...
... appears that white sheep and pigs are differently affected from coloured individuals by certain vegetable poisons : Professor Wyman has recently communicated to me a good illustration of this fact ; on asking some farmers in Florida how ...
Page 24
... appears , it tends to appear in the offspring at a corresponding age , though sometimes earlier . In many cases this could not be otherwise : thus the inherited peculiarities in the horns of cattle could appear only in the offspring ...
... appears , it tends to appear in the offspring at a corresponding age , though sometimes earlier . In many cases this could not be otherwise : thus the inherited peculiarities in the horns of cattle could appear only in the offspring ...
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Common terms and phrases
accumulated adapted affinities allied species America analogous ancient animals appear archipelago become bees believe birds breeds cause cells characters cirripedes climate closely allied colour continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo endemic existing exterminated extinct extremely facts favourable fertilised fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids hybrids produced important increase individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ laws less living males mammals manner migration modification modified descendants natural selection naturalists nearly nest occasionally offspring organic organisation origin of species perfect pigeons plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemble rock-pigeon rudimentary seeds sexual sexual selection Silurian slight sometimes South America sterility structure struggle successive supposed swimbladder tend theory variability variations varieties vary whole widely