More individuals are born than can possibly survive.
 Charles Darwin, On The Origin of Species (1859). copy citation

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Author Charles Darwin
Source On The Origin of Species
Topic surviving
Date 1859
Language English
Reference
Note
Weblink http://www.gutenberg.org/files/2009/2009-h/2009-h.htm

Context

“The struggle for existence inevitably follows from the high geometrical ratio of increase which is common to all organic beings. This high rate of increase is proved by calculation—by the rapid increase of many animals and plants during a succession of peculiar seasons, and when naturalised in new countries. More individuals are born than can possibly survive. A grain in the balance may determine which individuals shall live and which shall die—which variety or species shall increase in number, and which shall decrease, or finally become extinct. As the individuals of the same species come in all respects into the closest competition with each other, the struggle will generally be most severe between them;” source