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Parapatric Speciation Sign Video

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Definition

A branching of population lineages to form separate species in which the diverging lineages are mostly nonoverlapping in geographic distribution but make contact along a narrow borderline. This controversial mode of speciation contrasts with allopatric speciation and sympatric speciation.

Source: Hickman, C.P., et al. 2011. Integrated Principles of Zoology. Fifteenth Edition. McGraw-Hill Higher Education.
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