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 102
... existing inhabitants , and as most areas are already stocked with a great diversity of forms , it follows that as each selected and favoured form increases in number , so generally will the less 102 NATURAL SELECTION.
... existing inhabitants , and as most areas are already stocked with a great diversity of forms , it follows that as each selected and favoured form increases in number , so generally will the less 102 NATURAL SELECTION.
Page 115
... existing groups ; and we can understand this fact , for the extinct species lived at very ancient epochs when the branching lines of descent had diverged less . I see no reason to limit the process of modification , as now explained ...
... existing groups ; and we can understand this fact , for the extinct species lived at very ancient epochs when the branching lines of descent had diverged less . I see no reason to limit the process of modification , as now explained ...
Page 119
... existing low forms have not in the least advanced since the first dawn of life would be rash ; for every naturalist who has dissected some of the beings now ranked as very low in the scale , must have been struck with their really ...
... existing low forms have not in the least advanced since the first dawn of life would be rash ; for every naturalist who has dissected some of the beings now ranked as very low in the scale , must have been struck with their really ...
Page 127
... existing species ; and those produced during each former year may represent the long succession of extinct species . At each period of growth all the growing twigs have tried to branch out on all sides , and to overtop and kill the ...
... existing species ; and those produced during each former year may represent the long succession of extinct species . At each period of growth all the growing twigs have tried to branch out on all sides , and to overtop and kill the ...
Page 153
... existing character , and what are new but analogous variations , yet we ought , on my theory , sometimes to find the varying offspring of a species assuming characters ( either from reversion or from analogous variation ) which already ...
... existing character , and what are new but analogous variations , yet we ought , on my theory , sometimes to find the varying offspring of a species assuming characters ( either from reversion or from analogous variation ) which already ...
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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