Charles Darwin about country (“On The Origin of Species”, 1859) - If the country were open on its borders, new forms would certainly immigrate, and this would likewise seriously disturb the relations of some of the former inhabitants.
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If the country were open on its borders, new forms would certainly immigrate, and this would likewise seriously disturb the relations of some of the former inhabitants.
 Charles DarwinOn The Origin of Species (1859). copy citation

Meaning and analysis

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