American - Scientist | -
Males transmit signals in courtship through behavioral displays.
Peter R. Grant
ThroughSignalsBehavioralCourtship
Almost nothing is known from hybridization studies about the inheritance of courtship behavior of females, or of their responsiveness to particular male signals.
BehaviorNothingInheritanceAlmost
Closely related species of birds are also chromosomally similar.
BirdsSpeciesSimilarRelatedAlso
The theory of founder effects does not explain how novel features like plumage traits arise.
ExplainTheoryFounderLikeHow
The process of speciation is completed with the cessation of genetic exchange.
ProcessGeneticExchangeCompleted
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