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Speciation

Speciation refers to the evolutionary process by which new biological species arise.

There are three main ideas concerning the emergence of new species (Modes of Speciation), each based on the degree to which populations undergoing this process are geographically isolated from one another (allopatric speciation, sympatric speciation, parapatric speciation).

Note: This article excerpts material from the Wikipedia article "Speciation", which is released under the GNU Free Documentation License.

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