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 68
... observations which I have made , I believe that it is the seedlings which suffer most from germinating in ground already thickly stocked with other plants . Seedlings , also , are destroyed in vast numbers by various enemies ; for ...
... observations which I have made , I believe that it is the seedlings which suffer most from germinating in ground already thickly stocked with other plants . Seedlings , also , are destroyed in vast numbers by various enemies ; for ...
Page 73
... observed in parts of South America ) the vegetation : this again would largely affect the insects ; and this , as we have just seen in Staffordshire , the insectivorous birds , and so onwards in ever - increasing circles of complexity ...
... observed in parts of South America ) the vegetation : this again would largely affect the insects ; and this , as we have just seen in Staffordshire , the insectivorous birds , and so onwards in ever - increasing circles of complexity ...
Page 74
... observed that ancient Indian ruins in the Southern United States , which must formerly have been cleared of trees , now display the same beautiful diversity and proportion of kinds as in the surrounding virgin forests . What a struggle ...
... observed that ancient Indian ruins in the Southern United States , which must formerly have been cleared of trees , now display the same beautiful diversity and proportion of kinds as in the surrounding virgin forests . What a struggle ...
Page 75
... observed that ancient Indian ruins in the Southern United States , which must formerly have been cleared of trees , now display the same beautiful diversity and proportion of kinds as in the surrounding virgin forests . What a struggle ...
... observed that ancient Indian ruins in the Southern United States , which must formerly have been cleared of trees , now display the same beautiful diversity and proportion of kinds as in the surrounding virgin forests . What a struggle ...
Page 88
... observe great differences in the natural ten- dencies of our domestic animals ; one cat , for instance , taking to catch rats , another mice ; one cat , according to Mr. St. John , bringing home winged game , another hares or rabbits ...
... observe great differences in the natural ten- dencies of our domestic animals ; one cat , for instance , taking to catch rats , another mice ; one cat , according to Mr. St. John , bringing home winged game , another hares or rabbits ...
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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