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Biology  /  Bio 1727  ·  Atom · ~20 seconds

Hybrid Zones

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A hybrid zone is a geographic area where two closely related, recently diverged species continue to interact and interbreed, producing hybrids.

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A narrow band where two related species' ranges overlap and hybrids regularly appear is a hybrid zone under observation.

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A hybrid zone's existence alone does not mean speciation failed — its long-term outcome depends on hybrid fitness.