| Pronunciation: | `speeshee'eyshun | ||
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| Definition: | [n] the evolution of a biological species | ||
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| See Also: | evolution, phylogenesis, phylogeny | ||
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| Definition: | The formation of two or more new species from a single old species. | ||
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| Definition: | the evolutionary process that is said to occur when two previous subspecies (of the same species) are no longer capable of successful interbreeding; they are then two different species. | ||
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