On the Origin of the Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life |
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Page 5
... species and the fertility of varieties when intercrossed ; and fourthly ... species and varieties , if he make due allowance for our profound ignorance in ... allied species has a narrow range and is rare ? Yet these relations are of ...
... species and the fertility of varieties when intercrossed ; and fourthly ... species and varieties , if he make due allowance for our profound ignorance in ... allied species has a narrow range and is rare ? Yet these relations are of ...
Page 17
... animals and plants , and compare them with closely allied species , we generally perceive in each domestic race , as already remarked , less uniformity of character than in true species . Domestic races often have a somewhat monstrous ...
... animals and plants , and compare them with closely allied species , we generally perceive in each domestic race , as already remarked , less uniformity of character than in true species . Domestic races often have a somewhat monstrous ...
Page 18
... species , then such facts would . have great weight in making us doubt about the immu- tability of the many very closely allied natural species —for instance , of the many foxes - inhabiting different quarters of the world . I do not ...
... species , then such facts would . have great weight in making us doubt about the immu- tability of the many very closely allied natural species —for instance , of the many foxes - inhabiting different quarters of the world . I do not ...
Page 23
... allied to the carrier , but , instead of a long beak , has a very short and broad one . The pouter has a much elongated body , wings , and legs ; and its enormously developed crop , which it glories in inflating , may well excite ...
... allied to the carrier , but , instead of a long beak , has a very short and broad one . The pouter has a much elongated body , wings , and legs ; and its enormously developed crop , which it glories in inflating , may well excite ...
Page 32
... allied species . Some effect may be attri- buted to the direct and definite action of the external conditions of life , and some little to habit ; but he would be a bold man who would account by such agencies for the differences between ...
... allied species . Some effect may be attri- buted to the direct and definite action of the external conditions of life , and some little to habit ; but he would be a bold man who would account by such agencies for the differences between ...
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Common terms and phrases
accumulated adapted admit affinities allied species America analogous ancient appear archipelago Asa Gray become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common continuous crossed crustaceans degree developed difficulty distinct species divergence doubt eggs embryo existing exterminated extinct extremely facts favourable females fertilised fertility flowers formation forms fossil Fritz Müller Gärtner genera genus geological Glacial period gradations greater number groups of species habits Hence hermaphrodites hive-bee hybrids important individuals inhabitants inherited insects instance instincts intercrossing larvæ less living males mammals manner migration modified descendants natural selection naturalists nearly nest occasionally occur oceanic islands offspring organisation parent perfect pigeons pistil pollen present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble rudimentary organs seeds sexual sexual selection Silurian slight South America stamens sterility structure struggle successive suppose theory tion variability variations vary whilst whole