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" There is no exception to the rule that every organic being naturally increases at so high a rate, that, if not destroyed, the earth would soon be covered by the progeny of a single pair. Even slow-breeding man has doubled in twenty-five years, and at... "
Animal Studies: A Text-book of Elementary Zoology for Use in High Schools ... - Página 282
por David Starr Jordan, Vernon Lyman Kellogg, Harold Heath - 1903 - 459 páginas
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Hall's Journal of Health, Volume 36

1889
...progeny of a single pair. Even slow-breeding man doubles in twentyfive years, and at this rate in a few thousand years, there would literally not be standing room for his progeny." Again he says : "Lighten any check, mitigate the destruction ever so little, and the number of the...
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The American Journal of Science and Arts

1860
...a single pair. Even slow-breeding man has doubled in twenty-rive years, and at this rate, in a few thousand years, there would literally not be standing room for his progeny. Linnseus has calculated that if an annual plant produced only two seeds — and there is no plant so...
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On the Origin of Species by Means of Natural Selection; Or, The Preservation ...

Charles Darwin - 1861 - 440 páginas
...a single pair. Even slow-breeding man has doubled in twenty-live years, and at this rate, in a few thousand years, there would literally not be standing room for his progeny. Linnaeus has calculated that if an annual plant produced only two seeds — and there is no plant so...
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Transactions of the Illinois State Agricultural Society, with ..., Volume 4

Illinois State Agricultural Society - 1861
...a single pair. Even slowbreeding man lias doubled in twenty-five years ; and ut this rate, iu a few thousand years there would literally not be standing room for his progeny. * * * In looking at Xature, it i-< most necessary to keep the foregoing considerations always in mind...
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Zoologist: A Monthly Journal of Natural History, Volume 19

1861
...of a single pair. Even slow-breeding man has doubled in twenty-five years, and at this rate in a few thousand years there would literally not be standing room for his progeny. Linneus has calculated that if an annual plant produced ouly two seeds — and there is no plant so...
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Transactions of the Illinois Natural History Society

Illinois Natural History Society - 1861 - 194 páginas
...a single pair. Even slowbreeding man has doubled in twenty-five yea s; and at this rate, in a ft w thousand years, there would literally not be standing room for his progeny. * * * In looking at Nature, it is most necessary to k< ep the fon going considerations always in mind...
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The Popular Science Review: A Quarterly Miscellany of Entertaining and ...

James Samuelson, Henry Lawson, William Sweetland Dallas - 1876
...covered with the progeny of a single pair. Even slow-breeding man has doubled in twenty-five years ; and at this rate in less than a thousand years there would literally not be standing-room for his progeny. . . . The elephant is reckoned the slowest breeder of all known animals,...
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On the Origin of Species by Means of Natural Selection: Or, The Preservation ...

Charles Darwin - 1864 - 440 páginas
...a single pair. Even slow-breeding man has doubled in twenty-five years, and at this rate, in a few thousand years, there would literally not be standing room for his progeny. Linnaeus has calculated that if an annual plant produced only two seeds — and there is no plant so...
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Harper's Magazine, Volume 34

1867
...young at once; "even slow-breeding man has doubled in twenty-five years ; and at this rate, in a few thousand years, there would literally not be standing room for his progeny." The result of this geometrical increase of animals and plants is ably set forth by Darwin in his chapter...
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On the Origin of Species by Means of Natural Selection, Or The Preservation ...

Charles Darwin - 1875 - 458 páginas
...covered by the progeny of a single pair. Even slow-breeding man has doubled in twenty-five years, and at this rate, in less than a thousand years, there would literally not be standing-room for his progeny. Linnaeus has calculated that if an annual plant produced only two seeds...
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