When hybrid offspring in amphibians are at a fitness disadvantage and reinforcement does not take place, what event or process is likely to occur?

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Quizplus · Accepted Answer

When hybrid offspring in amphibians are at a fitness disadvantage and reinforcement does not take place, a hybrid zone may form where hybrids occupy a geographic region where their parental species overlap. This can lead to varying degrees of genetic exchange between the parental species, and eventually, the formation of a stable hybrid population.

When Hybrid Offspring in Amphibians Are at a Fitness Disadvantage