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  • Each species may have had its origin in a single pair, or individual, where an individual was sufficient, and species may have been created in succession at such times and in such places as to enable them to multiply and endure for an appointed period, and occupy an appointed space on the globe.

    Sir Charles Lyell (1853). “Principles of geology ; or, The modern changes of the earth and its inhabitants considered as illustrative of geology”, p.666