 | William S. Knickerbocker - 1927 - 410 páginas
...assuredly be better filled up, if some of the original inhabitants were in some manner modified ; for, had the area been open to immigration, these same...places would have been seized on by intruders. In such cases, slight modifications, which in any way favoured the individuals of any species, by better adapting... | |
 | Alan W. Bellringer, C. B. Jones - 1988 - 264 páginas
...assuredly be better filled up, if some of the original inhabitants were in some manner modified; for, had the area been open to immigration, these same...places would have been seized on by intruders. In such a case, every slight modification, which in the course of ages chanced to arise, and which in any way... | |
 | Charles Darwin - 1996 - 382 páginas
...assuredly be better filled up, if some of the original inhabitants were in some manner modified; for, had the area been open to immigration, these same...and which in any way favoured the individuals of any of the species, by better adapting them to their altered conditions, would tend to be preserved; and... | |
 | Charles Darwin - 1998 - 486 páginas
...original inhabitants were in some manner modified; for, had die area been open to immigration, diese same places would have been seized on by intruders....In such case, every slight modification, which in die course of ages chanced to arise, and which in any way favoured the individuals of any of die species,... | |
 | Timothy Lenoir - 1998 - 484 páginas
...is secure from the predations of "improvement" from outside, from those he describes as "intruders": "had the area been open to immigration, these same places would have been seized on by intruders."30 Instead the aboriginal inhabitants or lifeforms discover more and more ecological niches... | |
 | Charles Darwin - 2003 - 676 páginas
...assuredly be better filled up, if some of the original inhabitants were in some manner modified; for, had the area been open to immigration, these same...and which in any way favoured the individuals of any of the species, by better adapting them to their altered conditions, would tend to be preserved; and... | |
 | Oliver J. Thatcher - 2004 - 456 páginas
...assuredly be better filled up, if some of the original inhabitants were in some manner modified ; for, had the area been open to immigration, these same...places would have been seized on by intruders. In such cases, slight modifications, which in any way favoured the individuals of any species, by better adapting... | |
 | Charles Darwin - 2008 - 166 páginas
...assuredly be better filled up, if some of the original inhabitants were in some manner modified; for, had the area been open to immigration, these same...and which in any way favoured the individuals of any of the species, by better adapting them to their altered conditions, would tend to be preserved; and... | |
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... the case of an island, or of a country partly surrounded by barriers, into which new and better adapted forms could not freely enter, we should then have places in the economy of nature which would assuredly be better filled up, if some of the original... 
