Biology / Unit 8 Bio 1715 short lesson, about 20 seconds
Behavioral Isolation
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The idea
Behavioral isolation is a prezygotic barrier where a species-specific courtship behavior fails to attract a mate from a different, related species.
In practice
A male firefly's species-specific light pattern fails to attract a female of a different species, who does not recognize the signal.
Where people slip
Behavioral isolation depends on signal recognition — a barrier of courtship communication, not physical incompatibility.
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