The Origin of Species by Means of Natural Selection, Or, The Preservation of Favored Races in the Struggle for Life: Reprinted from the Sixth London EditionBurt, 1890 - 538ÆäÀÌÁö |
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... inhabitants will have been numerous in individu als and kinds , and will have been subjected to severe com- petition . When converted by subsistance into large separate islands there will still have existed many indi- viduals of the ...
... inhabitants will have been numerous in individu als and kinds , and will have been subjected to severe com- petition . When converted by subsistance into large separate islands there will still have existed many indi- viduals of the ...
374 ÆäÀÌÁö
... inhabitants of the sea . A second great fact which strikes us in our general review is , that barriers of any kind , or obstacles to free migration , are related in a close and important manner to the differences between the productions ...
... inhabitants of the sea . A second great fact which strikes us in our general review is , that barriers of any kind , or obstacles to free migration , are related in a close and important manner to the differences between the productions ...
418 ÆäÀÌÁö
... inhabitants ! The inhabitants of the Cape Verde Islands are related to those of Africa , like those of the Galapagos to America . Facts , such as these , admit of no sort of explanation on the ordinary view of in dependent creation ...
... inhabitants ! The inhabitants of the Cape Verde Islands are related to those of Africa , like those of the Galapagos to America . Facts , such as these , admit of no sort of explanation on the ordinary view of in dependent creation ...
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adapted admit affinities allied species America ancient appear Asa Gray beak become bees believe belonging birds breeds cause cells characters climate closely allied color continued crossed crustaceans degree developed difficulty distinct species domestic doubt effects eggs embryo existing extinct extremely facts favorable females fertility flowers formation forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate intervals kind lamell©¡ larv©¡ less living male mammals manner marsupials migration modified descendants natural selection naturalists nearly nest oceanic islands offspring organs parent peculiar perfect pigeons pistil pollen present principle probably produced quadrupeds ranked remarked resemblance rudimentary seeds sexual selection Silurian slight South America stamens sterility structure successive suppose tend theory tion trees variability variations varieties vary whole widely different wings young