mechanical isolation
biology
Quick Summary
Mechanical isolation is a type of reproductive isolating mechanism that prevents different animal species from interbreeding due to incompatible genitalia shapes and sizes. In plants, variations in flower structure can impede pollination. This type of isolation is a factor in speciation, the formation of new species, where populations become genetically distinct and can no longer interbreed. It is one of several prezygotic mechanisms that prevent the formation of hybrids before fertilization occurs.12
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