On the Origin of Species by Means of Natural Selection |
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Page 114
... families . Thus it is , as I believe , that two or more genera are produced by descent , with modification , from two or more species of the same genus . And the two or more parent- species are supposed to have descended from some one ...
... families . Thus it is , as I believe , that two or more genera are produced by descent , with modification , from two or more species of the same genus . And the two or more parent- species are supposed to have descended from some one ...
Page 115
... families , or even orders , according to the amount of divergent modification . supposed to be represented in the diagram . And the two new families , or orders , will have descended from two spe- cies of the original genus ; and these ...
... families , or even orders , according to the amount of divergent modification . supposed to be represented in the diagram . And the two new families , or orders , will have descended from two spe- cies of the original genus ; and these ...
Page 116
... families , orders , and classes , as at the present day . A distinguished naturalist has objected that the con- tinued action of natural selection and divergence will tend to make an indefinite number of specific forms . As far as mere ...
... families , orders , and classes , as at the present day . A distinguished naturalist has objected that the con- tinued action of natural selection and divergence will tend to make an indefinite number of specific forms . As far as mere ...
Page 118
... families , families , orders , sub - classes , and classes . The several subordinate groups in any class cannot be ranked in a single file , but seem rather to be clustered round points , and these round other points , and so on in ...
... families , families , orders , sub - classes , and classes . The several subordinate groups in any class cannot be ranked in a single file , but seem rather to be clustered round points , and these round other points , and so on in ...
Page 119
... families , and genera which have now no living representatives , and which are known to us only from having been found in a fossil state . As we here and there see a thin straggling branch springing from a fork low down in a tree , and ...
... families , and genera which have now no living representatives , and which are known to us only from having been found in a fossil state . As we here and there see a thin straggling branch springing from a fork low down in a tree , and ...
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Common terms and phrases
accumulated adapted affinities allied species America amount ancient animals appear 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 Europe existing exterminated extinct extremely facts favourable fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ laws less living look male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring organic organisation perfect pigeons pistil plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemble rudimentary seeds sexual selection Silurian slight South America sterility structure struggle successive suppose swimbladder tend theory tion trees variability variation varieties vary whole widely