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Species Determination, Speciation

The most widely accepted definition of a species is the biological species concept proposed by Ernst Mayr in the 1940s. A species is a population of individual organisms that can interbreed in nature, mating and producing fertile offspring in a natural setting. Species are organisms that share the same gene pool, and therefore genetic and morphological similarities.

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Science EncyclopediaScience & Philosophy: Adam Smith Biography to Spectroscopic binary